CN111880108B - Battery testing method, device, storage medium and electronic equipment - Google Patents
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Abstract
Description
Translated fromChinese技术领域technical field
本公开涉及电池领域，具体地，涉及一种电池测试的方法、装置、存储介质及电子设备。The present disclosure relates to the battery field, and in particular, to a battery testing method, device, storage medium, and electronic equipment.
背景技术Background technique
现阶段电动车得到了广泛应用，电动车在市场上销售时，客户对于车辆电池的使用年限及使用里程越发重视，而对于整车厂商或者电池供应商来说，电池循环寿命测试是验证电池寿命及车辆里程的最有效手段，因此，在电池产品（电芯、模组、电池包）研发过程中甚至于量产以后，整车厂商或者电池供应商均会对电池产品进行循环寿命测试，并根据该测试的数据及结果，结合车辆行驶工况等因素对电池产品进行寿命仿真，从而预估电池产品的使用年限及使用里程。由此可见，准确的电池产品循环寿命测试数据和结果尤为重要。At this stage, electric vehicles have been widely used. When electric vehicles are sold in the market, customers pay more and more attention to the service life and mileage of vehicle batteries. For vehicle manufacturers or battery suppliers, battery cycle life testing is to verify battery life. Therefore, during the research and development of battery products (battery cells, modules, battery packs) and even after mass production, vehicle manufacturers or battery suppliers will conduct cycle life tests on battery products, and According to the data and results of the test, combined with factors such as vehicle driving conditions, the life simulation of the battery product is carried out, so as to estimate the service life and mileage of the battery product. It can be seen that accurate battery product cycle life test data and results are particularly important.
在相关技术中，在一次电池循环寿命测试中使用固定的上限动态电压和下限动态电压对电池循环进行充放电测试，随着循环次数的增加，电池容量不断减少，放电深度随之不断缩小，导致测试数据出现偏差，进而影响测试结果及后续的数据应用。In the related technology, a fixed upper limit dynamic voltage and a lower limit dynamic voltage are used to charge and discharge the battery cycle in a battery cycle life test. As the number of cycles increases, the battery capacity continues to decrease, and the depth of discharge continues to shrink accordingly, resulting in Deviations in the test data will affect the test results and subsequent data applications.
发明内容Contents of the invention
为了实现上述目的，本公开提供一种电池测试的方法、装置、存储介质及电子设备。In order to achieve the above purpose, the present disclosure provides a battery testing method, device, storage medium and electronic equipment.
第一方面，本公开提供了一种电池测试的方法，其特征在于，所述方法包括：获取电池的电池参数，所述电池参数包括上限SOC、下限SOC、满电电压和空电电压；根据所述上限SOC确定所述电池的第一上限动态电压，根据所述下限SOC确定所述电池的第一下限动态电压；对所述电池进行预设次数的充放电测试，所述充放电测试包括：通过充电操作将所述电池的电压调整至所述第一上限动态电压，并通过放电操作将所述电池的电压调整至所述第一下限动态电压；对所述电池进行满充操作和满放操作，确定第二上限动态电压和第二下限动态电压，所述满充操作包括通过充电操作将所述电池的电压由所述空电电压调整至所述满电电压，所述满放操作包括通过放电操作将所述电池的电压由所述满电电压调整至所述空电电压；将所述第二上限动态电压作为新的第一上限动态电压，将所述第二下限动态电压作为新的第一下限动态电压；根据新的第一上限动态电压和新的第一下限动态电压，循环执行对所述电池进行预设次数的充放电测试的步骤至将所述第二上限动态电压作为新的第一上限动态电压，将所述第二下限动态电压作为新的第一下限动态电压的步骤，直至测试完成。In a first aspect, the present disclosure provides a method for battery testing, which is characterized in that the method includes: acquiring battery parameters of the battery, the battery parameters including upper limit SOC, lower limit SOC, full charge voltage and empty charge voltage; The upper limit SOC determines the first upper limit dynamic voltage of the battery, and determines the first lower limit dynamic voltage of the battery according to the lower limit SOC; conducts a preset number of charging and discharging tests on the battery, and the charging and discharging tests include : adjusting the voltage of the battery to the first upper limit dynamic voltage through a charging operation, and adjusting the voltage of the battery to the first lower limit dynamic voltage through a discharging operation; performing a full charge operation and a full charge operation on the battery discharge operation, determine the second upper limit dynamic voltage and the second lower limit dynamic voltage, the full charge operation includes adjusting the voltage of the battery from the empty voltage to the full charge voltage through the charge operation, the full discharge operation including adjusting the voltage of the battery from the fully charged voltage to the empty voltage through a discharge operation; using the second upper limit dynamic voltage as a new first upper limit dynamic voltage, and using the second lower limit dynamic voltage as a new upper limit dynamic voltage A new first lower limit dynamic voltage; according to the new first upper limit dynamic voltage and the new first lower limit dynamic voltage, the step of carrying out a preset number of charge and discharge tests on the battery until the second upper limit dynamic voltage As the new first upper limit dynamic voltage, use the second lower limit dynamic voltage as the new first lower limit dynamic voltage until the test is completed.
可选地，所述根据所述上限SOC确定所述电池的第一上限动态电压，根据所述下限SOC确定所述电池的第一下限动态电压包括：通过充电容量电压关系，确定所述上限SOC对应的所述第一上限动态电压，所述充电容量电压关系包括所述电池在充电过程中，SOC和动态电压的对应关系；通过放电容量电压关系，确定所述下限SOC对应的所述第一下限动态电压，所述充电容量电压关系包括所述电池在放电过程中，SOC和动态电压的对应关系。Optionally, the determining the first upper limit dynamic voltage of the battery according to the upper limit SOC, and determining the first lower limit dynamic voltage of the battery according to the lower limit SOC include: determining the upper limit SOC through the charging capacity voltage relationship Corresponding to the first upper limit dynamic voltage, the charging capacity voltage relationship includes the corresponding relationship between the SOC and the dynamic voltage during the charging process of the battery; through the discharge capacity voltage relationship, the first upper limit SOC corresponding to the lower limit SOC is determined. The lower limit dynamic voltage, the charging capacity voltage relationship includes the corresponding relationship between the SOC and the dynamic voltage during the discharge process of the battery.
可选地，所述对所述电池进行满充操作和满放操作，确定第二上限动态电压和第二下限动态电压包括：在对所述电池进行所述满充操作的过程中，周期性获取电池充电容量对应的电池动态电压，并根据所述电池充电容量和所述电池动态电压更新所述充电容量电压关系，并根据更新后的充电容量电压关系确定所述第二上限动态电压；在对所述电池进行所述满放操作的过程中，周期性获取电池放电容量对应的电池动态电压，并根据所述电池放电容量和所述电池动态电压更新所述放电容量电压关系，并根据更新后的放电容量电压关系确定所述第二下限动态电压。Optionally, the performing full charge operation and full discharge operation on the battery, and determining the second upper limit dynamic voltage and the second lower limit dynamic voltage include: during the process of performing the full charge operation on the battery, periodically Obtaining the battery dynamic voltage corresponding to the battery charging capacity, updating the charging capacity voltage relationship according to the battery charging capacity and the battery dynamic voltage, and determining the second upper limit dynamic voltage according to the updated charging capacity voltage relationship; During the process of performing the full discharge operation on the battery, periodically obtain the battery dynamic voltage corresponding to the battery discharge capacity, and update the discharge capacity voltage relationship according to the battery discharge capacity and the battery dynamic voltage, and update The latter discharge capacity voltage relationship determines the second lower limit dynamic voltage.
可选地，所述根据更新后的充电容量电压关系确定所述第二上限动态电压包括：通过更新后的充电容量电压关系确定所述上限SOC对应的候选上限动态电压；获取所述电池的第一放电容量，以及所述电池在进行所述满放操作后的总放电容量，所述第一放电容量包括所述电池的电压通过充电操作由空电电压调整至所述候选上限动态电压，并通过放电操作由所述候选上限动态电压调整至所述空电电压时的放电容量；所述总放电容量包括所述电池的电压由所述满电电压调整至所述空电电压时的放电容量；根据所述第一放电容量和所述总放电容量校准所述候选上限动态电压，得到所述第二上限动态电压。Optionally, the determining the second upper limit dynamic voltage according to the updated charging capacity voltage relationship includes: determining a candidate upper limit dynamic voltage corresponding to the upper limit SOC through the updated charging capacity voltage relationship; obtaining the second upper limit dynamic voltage of the battery A discharge capacity, and the total discharge capacity of the battery after the full discharge operation, the first discharge capacity includes the voltage of the battery adjusted from the empty voltage to the candidate upper limit dynamic voltage through the charging operation, and The discharge capacity when the candidate upper limit dynamic voltage is adjusted to the empty voltage through a discharge operation; the total discharge capacity includes the discharge capacity when the voltage of the battery is adjusted from the full voltage to the empty voltage ; Calibrate the candidate upper limit dynamic voltage according to the first discharge capacity and the total discharge capacity to obtain the second upper limit dynamic voltage.
可选地，所述根据所述第一放电容量和所述总放电容量校准所述候选上限动态电压，得到所述第二上限动态电压包括：获取所述第一放电容量与所述总放电容量的第一比值；在所述第一比值在预设上限阈值范围内的情况下，将所述候选上限动态电压作为所述第二上限动态电压，所述预设上限阈值范围是预先设置的以所述上限SOC为中值的阈值范围；在所述第一比值在所述预设上限阈值范围外的情况下，调整所述候选上限动态电压；继续根据调整后的候选上限动态电压获取新的第一放电容量，并获取新的第一放电容量与所述总放电容量的第一比值，直至所述第一比值在预设上限阈值范围内，将调整后的候选上限动态电压作为所述第二上限动态电压。Optionally, the calibrating the candidate upper limit dynamic voltage according to the first discharge capacity and the total discharge capacity, and obtaining the second upper limit dynamic voltage includes: obtaining the first discharge capacity and the total discharge capacity the first ratio; when the first ratio is within the preset upper limit threshold range, the candidate upper limit dynamic voltage is used as the second upper limit dynamic voltage, and the preset upper limit threshold range is preset to The upper limit SOC is the threshold range of the median; when the first ratio is outside the preset upper threshold range, adjust the candidate upper limit dynamic voltage; continue to acquire new values based on the adjusted candidate upper limit dynamic voltage the first discharge capacity, and obtain a first ratio of the new first discharge capacity to the total discharge capacity until the first ratio is within the preset upper limit threshold range, and use the adjusted candidate upper limit dynamic voltage as the first Two upper limit dynamic voltage.
可选地，所述根据更新后的放电容量电压关系确定所述第二下限动态电压包括：通过更新后的放电容量电压关系确定所述下限SOC对应的候选下限动态电压；获取所述电池的第二放电容量，以及所述电池在进行所述满放操作后的总放电容量，所述第二放电容量包括所述电池的电压由所述满电电压调整至所述候选下限动态电压时的放电容量；所述总放电容量包括所述电池的电压由所述满电电压调整至所述空电电压时的放电容量；根据所述总放电容量和所述第二放电容量校准所述候选下限动态电压，得到所述第二下限动态电压。Optionally, the determining the second lower limit dynamic voltage according to the updated discharge capacity voltage relationship includes: determining a candidate lower limit dynamic voltage corresponding to the lower limit SOC through the updated discharge capacity voltage relationship; obtaining the second lower limit dynamic voltage of the battery Two discharge capacity, and the total discharge capacity of the battery after the full discharge operation, the second discharge capacity includes the discharge when the voltage of the battery is adjusted from the full charge voltage to the candidate lower limit dynamic voltage Capacity; the total discharge capacity includes the discharge capacity when the voltage of the battery is adjusted from the full voltage to the empty voltage; the candidate lower limit dynamics is calibrated according to the total discharge capacity and the second discharge capacity voltage to obtain the second lower limit dynamic voltage.
可选地，所述根据所述总放电容量和所述第二放电容量校准所述候选下限动态电压，得到所述第二下限动态电压包括：获取所述第二放电容量与所述总放电容量的第二比值；在所述第二比值在预设下限阈值范围内的情况下，将所述候选下限动态电压作为所述第二下限动态电压，所述预设下限阈值范围是预先设置的以所述下限SOC为中值的阈值范围；在所述第二比值在所述预设下限阈值范围外的情况下，调整所述候选下限动态电压；继续根据调整后的候选下限动态电压获取新的第二放电容量，并获取新的第二放电容量与所述总放电容量的第二比值，直至所述第二比值在预设下限阈值范围内，将调整后的候选下限动态电压作为所述第二上限动态电压。Optionally, the calibrating the candidate lower limit dynamic voltage according to the total discharge capacity and the second discharge capacity, and obtaining the second lower limit dynamic voltage includes: obtaining the second discharge capacity and the total discharge capacity the second ratio; when the second ratio is within the preset lower limit threshold range, the candidate lower limit dynamic voltage is used as the second lower limit dynamic voltage, and the preset lower limit threshold range is preset to The lower limit SOC is the threshold range of the median; in the case where the second ratio is outside the preset lower limit threshold range, adjust the candidate lower limit dynamic voltage; continue to acquire new values based on the adjusted candidate lower limit dynamic voltage the second discharge capacity, and obtain a second ratio of the new second discharge capacity to the total discharge capacity until the second ratio is within the preset lower limit threshold range, and use the adjusted candidate lower limit dynamic voltage as the first Two upper limit dynamic voltage.
第二方面，本公开提供了一种电池测试的装置，其特征在于，所述装置包括：参数获取模块，用于获取电池的电池参数，所述电池参数包括上限SOC、下限SOC、满电电压和空电电压；第一电压确定模块，用于根据所述上限SOC确定所述电池的第一上限动态电压，根据所述下限SOC确定所述电池的第一下限动态电压；充放电测试模块，用于对所述电池进行预设次数的充放电测试，所述充放电测试包括：通过充电操作将所述电池的电压调整至所述第一上限动态电压，并通过放电操作将所述电池的电压调整至所述第一下限动态电压；第二电压确定模块，用于对所述电池进行满充操作和满放操作，确定第二上限动态电压和第二下限动态电压，所述满充操作包括通过充电操作将所述电池的电压由所述空电电压调整至所述满电电压，所述满放操作包括通过放电操作将所述电池的电压由所述满电电压调整至所述空电电压；电压更新模块，用于将所述第二上限动态电压作为新的第一上限动态电压，将所述第二下限动态电压作为新的第一下限动态电压；循环执行模块，用于根据新的第一上限动态电压和新的第一下限动态电压，循环执行对所述电池进行预设次数的充放电测试的步骤至将所述第二上限动态电压作为新的第一上限动态电压，将所述第二下限动态电压作为新的第一下限动态电压的步骤，直至测试完成。In a second aspect, the present disclosure provides a battery testing device, which is characterized in that the device includes: a parameter acquisition module for acquiring battery parameters of the battery, the battery parameters include upper limit SOC, lower limit SOC, full charge voltage and empty voltage; a first voltage determination module, configured to determine a first upper limit dynamic voltage of the battery according to the upper limit SOC, and determine a first lower limit dynamic voltage of the battery according to the lower limit SOC; a charge and discharge test module, It is used to perform a preset number of charging and discharging tests on the battery, and the charging and discharging tests include: adjusting the voltage of the battery to the first upper limit dynamic voltage through a charging operation, and adjusting the voltage of the battery to the first upper limit dynamic voltage through a discharging operation. The voltage is adjusted to the first lower limit dynamic voltage; the second voltage determination module is used to perform a full charge operation and a full discharge operation on the battery, determine a second upper limit dynamic voltage and a second lower limit dynamic voltage, and the full charge operation including adjusting the voltage of the battery from the empty voltage to the full voltage through a charging operation, and the full discharge operation includes adjusting the voltage of the battery from the full voltage to the empty voltage through a discharging operation electric voltage; a voltage update module, configured to use the second upper limit dynamic voltage as a new first upper limit dynamic voltage, and use the second lower limit dynamic voltage as a new first lower limit dynamic voltage; a loop execution module, configured to use the second upper limit dynamic voltage as a new first lower limit dynamic voltage; a new first upper limit dynamic voltage and a new first lower limit dynamic voltage, the step of carrying out a preset number of charging and discharging tests on the battery is performed in a loop until the second upper limit dynamic voltage is used as the new first upper limit dynamic voltage, The step of using the second lower limit dynamic voltage as a new first lower limit dynamic voltage until the test is completed.
可选地，所述第一电压确定模块，用于通过充电容量电压关系，确定所述上限SOC对应的所述第一上限动态电压，所述充电容量电压关系包括所述电池在充电过程中，SOC和动态电压的对应关系；通过放电容量电压关系，确定所述下限SOC对应的所述第一下限动态电压，所述充电容量电压关系包括所述电池在放电过程中，SOC和动态电压的对应关系。Optionally, the first voltage determination module is configured to determine the first upper limit dynamic voltage corresponding to the upper limit SOC through a charging capacity voltage relationship, the charging capacity voltage relationship includes that the battery is charging, The corresponding relationship between SOC and dynamic voltage; through the discharge capacity voltage relationship, the first lower limit dynamic voltage corresponding to the lower limit SOC is determined, and the charge capacity voltage relationship includes the correspondence between the SOC and the dynamic voltage of the battery during the discharge process relation.
可选地，所述第二电压确定模块，用于在对所述电池进行所述满充操作的过程中，周期性获取电池充电容量对应的电池动态电压，并根据所述电池充电容量和所述电池动态电压更新所述充电容量电压关系，并根据更新后的充电容量电压关系确定所述第二上限动态电压；在对所述电池进行所述满放操作的过程中，周期性获取电池放电容量对应的电池动态电压，并根据所述电池放电容量和所述电池动态电压更新所述放电容量电压关系，并根据更新后的放电容量电压关系确定所述第二下限动态电压。Optionally, the second voltage determination module is configured to periodically acquire a battery dynamic voltage corresponding to the battery charging capacity during the process of fully charging the battery, and obtain the battery dynamic voltage corresponding to the battery charging capacity according to the battery charging capacity and the The battery dynamic voltage updates the charging capacity voltage relationship, and determines the second upper limit dynamic voltage according to the updated charging capacity voltage relationship; during the process of performing the full discharge operation on the battery, periodically obtains the battery discharge The battery dynamic voltage corresponding to the capacity, and update the discharge capacity voltage relationship according to the battery discharge capacity and the battery dynamic voltage, and determine the second lower limit dynamic voltage according to the updated discharge capacity voltage relationship.
可选地，所述第二电压确定模块，用于通过更新后的充电容量电压关系确定所述上限SOC对应的候选上限动态电压；获取所述电池的第一放电容量，以及所述电池在进行所述满放操作后的总放电容量，所述第一放电容量包括所述电池的电压通过充电操作由空电电压调整至所述候选上限动态电压，并通过放电操作由所述候选上限动态电压调整至所述空电电压时的放电容量；所述总放电容量包括所述电池的电压由所述满电电压调整至所述空电电压时的放电容量；根据所述第一放电容量和所述总放电容量校准所述候选上限动态电压，得到所述第二上限动态电压。Optionally, the second voltage determination module is configured to determine a candidate upper limit dynamic voltage corresponding to the upper limit SOC through the updated charge capacity voltage relationship; obtain the first discharge capacity of the battery, and the battery is performing The total discharge capacity after the full discharge operation, the first discharge capacity includes that the voltage of the battery is adjusted from the empty voltage to the candidate upper limit dynamic voltage through the charging operation, and the candidate upper limit dynamic voltage is adjusted from the candidate upper limit dynamic voltage through the discharge operation The discharge capacity when adjusted to the empty voltage; the total discharge capacity includes the discharge capacity when the voltage of the battery is adjusted from the full voltage to the empty voltage; according to the first discharge capacity and the Calibrate the candidate upper limit dynamic voltage with the total discharge capacity to obtain the second upper limit dynamic voltage.
可选地，所述第二电压确定模块，用于获取所述第一放电容量与所述总放电容量的第一比值；在所述第一比值在预设上限阈值范围内的情况下，将所述候选上限动态电压作为所述第二上限动态电压，所述预设上限阈值范围是预先设置的以所述上限SOC为中值的阈值范围；在所述第一比值在所述预设上限阈值范围外的情况下，调整所述候选上限动态电压；继续根据调整后的候选上限动态电压获取新的第一放电容量，并获取新的第一放电容量与所述总放电容量的第一比值，直至所述第一比值在预设上限阈值范围内，将调整后的候选上限动态电压作为所述第二上限动态电压。Optionally, the second voltage determination module is configured to obtain a first ratio of the first discharge capacity to the total discharge capacity; when the first ratio is within a preset upper threshold range, set The candidate upper limit dynamic voltage is used as the second upper limit dynamic voltage, and the preset upper limit threshold range is a preset threshold range with the upper limit SOC as the median; when the first ratio is within the preset upper limit If it is outside the threshold range, adjust the candidate upper limit dynamic voltage; continue to obtain a new first discharge capacity according to the adjusted candidate upper limit dynamic voltage, and obtain a first ratio of the new first discharge capacity to the total discharge capacity , until the first ratio is within the preset upper limit threshold range, using the adjusted candidate upper limit dynamic voltage as the second upper limit dynamic voltage.
可选地，所述第二电压确定模块，用于通过更新后的放电容量电压关系确定所述下限SOC对应的候选下限动态电压；获取所述电池的第二放电容量，以及所述电池在进行所述满放操作后的总放电容量，所述第二放电容量包括所述电池的电压由所述满电电压调整至所述候选下限动态电压时的放电容量；所述总放电容量包括所述电池的电压由所述满电电压调整至所述空电电压时的放电容量；根据所述总放电容量和所述第二放电容量校准所述候选下限动态电压，得到所述第二下限动态电压。Optionally, the second voltage determination module is configured to determine the candidate lower limit dynamic voltage corresponding to the lower limit SOC through the updated discharge capacity voltage relationship; obtain the second discharge capacity of the battery, and the battery is performing The total discharge capacity after the full discharge operation, the second discharge capacity includes the discharge capacity when the voltage of the battery is adjusted from the full charge voltage to the candidate lower limit dynamic voltage; the total discharge capacity includes the The discharge capacity when the voltage of the battery is adjusted from the full charge voltage to the empty charge voltage; the candidate lower limit dynamic voltage is calibrated according to the total discharge capacity and the second discharge capacity to obtain the second lower limit dynamic voltage .
可选地，所述第二电压确定模块，用于获取所述第二放电容量与所述总放电容量的第二比值；在所述第二比值在预设下限阈值范围内的情况下，将所述候选下限动态电压作为所述第二下限动态电压，所述预设下限阈值范围是预先设置的以所述下限SOC为中值的阈值范围；在所述第二比值在所述预设下限阈值范围外的情况下，调整所述候选下限动态电压；继续根据调整后的候选下限动态电压获取新的第二放电容量，并获取新的第二放电容量与所述总放电容量的第二比值，直至所述第二比值在预设下限阈值范围内，将调整后的候选下限动态电压作为所述第二上限动态电压。Optionally, the second voltage determination module is configured to obtain a second ratio of the second discharge capacity to the total discharge capacity; when the second ratio is within a preset lower threshold range, set The candidate lower limit dynamic voltage is used as the second lower limit dynamic voltage, and the preset lower limit threshold range is a preset threshold range with the lower limit SOC as the median; when the second ratio is within the preset lower limit If it is outside the threshold range, adjust the candidate lower limit dynamic voltage; continue to obtain a new second discharge capacity according to the adjusted candidate lower limit dynamic voltage, and obtain a second ratio of the new second discharge capacity to the total discharge capacity , until the second ratio is within the preset lower limit threshold range, using the adjusted candidate lower limit dynamic voltage as the second upper limit dynamic voltage.
第三方面，本公开提供了一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现本公开第一方面所述方法的步骤。In a third aspect, the present disclosure provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the method described in the first aspect of the present disclosure are implemented.
第四方面，本公开提供了一种电子设备，包括：存储器，其上存储有计算机程序；处理器，用于执行所述存储器中的所述计算机程序，以实现本公开第一方面所述方法的步骤。In a fourth aspect, the present disclosure provides an electronic device, including: a memory on which a computer program is stored; a processor configured to execute the computer program in the memory to implement the method described in the first aspect of the present disclosure A step of.
通过上述技术方案，在电池测试中每隔预设次数的充放电测试后，对电池进行满充满放操作并更新第一上限动态电压和第一下限动态电压，在之后的充放电测试中使用更新后的第一上限动态电压作为充电上限，使用更新后的第一下限动态电压作为充电下限，从而保证了循环充放电测试中，放电深度基本不变，保证了测试数据的准确性，通过该方法，给出了准确的电池循环寿命测试数据，以便根据该数据评估电池产品使用年限和使用里程的场景。Through the above technical solution, after every preset number of charge and discharge tests in the battery test, the battery is fully charged and discharged, and the first upper limit dynamic voltage and the first lower limit dynamic voltage are updated, and the update is used in the subsequent charge and discharge tests. The first upper limit dynamic voltage is used as the charging upper limit, and the updated first lower limit dynamic voltage is used as the charging lower limit, thereby ensuring that the discharge depth is basically unchanged in the cycle charge and discharge test, and the accuracy of the test data is guaranteed. Through this method , gives accurate battery cycle life test data, so as to evaluate the service life and mileage scenarios of battery products based on this data.
本公开的其他特征和优点将在随后的具体实施方式部分予以详细说明。Other features and advantages of the present disclosure will be described in detail in the detailed description that follows.
附图说明Description of drawings
附图是用来提供对本公开的进一步理解，并且构成说明书的一部分，与下面的具体实施方式一起用于解释本公开，但并不构成对本公开的限制。在附图中：The accompanying drawings are used to provide a further understanding of the present disclosure, and constitute a part of the description, together with the following specific embodiments, are used to explain the present disclosure, but do not constitute a limitation to the present disclosure. In the attached picture:
图1是本公开实施例提供的一种电池测试的方法的流程图；FIG. 1 is a flow chart of a battery testing method provided by an embodiment of the present disclosure;
图2是本公开实施例提供的一种确定第二上限动态电压的方法的流程图；Fig. 2 is a flow chart of a method for determining a second upper limit dynamic voltage provided by an embodiment of the present disclosure;
图3是本公开实施例提供的一种确定第二下限动态电压的方法的流程图；Fig. 3 is a flowchart of a method for determining a second lower limit dynamic voltage provided by an embodiment of the present disclosure;
图4是本公开实施例提供的另一种确定第二上限动态电压的方法的流程图；Fig. 4 is a flowchart of another method for determining a second upper limit dynamic voltage provided by an embodiment of the present disclosure;
图5是本公开实施例提供的另一种确定第二下限动态电压的方法的流程图；Fig. 5 is a flow chart of another method for determining the second lower limit dynamic voltage provided by an embodiment of the present disclosure;
图6是本公开实施例提供的一种电池测试的装置的结构示意图；FIG. 6 is a schematic structural diagram of a battery testing device provided by an embodiment of the present disclosure;
图7是本公开实施例提供的一种电子设备的框图。Fig. 7 is a block diagram of an electronic device provided by an embodiment of the present disclosure.
具体实施方式Detailed ways
以下结合附图对本公开的具体实施方式进行详细说明。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本公开，并不用于限制本公开。Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.
在下文中的描述中，“第一”、“第二”等词汇，仅用于区分描述的目的，而不能理解为指示或暗示相对重要性，也不能理解为指示或暗示顺序。In the following descriptions, terms such as "first" and "second" are only used for the purpose of distinguishing descriptions, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying order.
首先，对本公开的应用场景进行说明，本公开可以应用于电池测试场景，特别是在需要较精确的电池循环寿命测试数据的场景，例如需要根据电池循环寿命测试的数据评估电池产品使用年限和使用里程的场景。而在相关技术中，在一次电池循环寿命测试中，一般会在开始阶段获取电池充电上限SOC（State of Charge，电池荷电状态）对应的上限动态电压和放电下限SOC对应的下限动态电压，在整个电池循环寿命测试过程中，都使用该上限动态电压作为充电上限，使用该下限动态电压作为放电下限，循环进行充放电测试，随着循环充放电测试次数的增加，电池容量不断减少，放电深度随之不断缩小，导致测试数据出现偏差，进而影响测试结果及后续的数据应用。First of all, the application scenarios of the present disclosure are described. The present disclosure can be applied to battery test scenarios, especially in scenarios that require more accurate battery cycle life test data. Miles scene. In related technologies, in a battery cycle life test, the upper limit dynamic voltage corresponding to the battery charging upper limit SOC (State of Charge, battery state of charge) and the lower limit dynamic voltage corresponding to the discharge lower limit SOC are generally obtained at the beginning stage. During the entire battery cycle life test process, the upper limit dynamic voltage is used as the upper limit of charging, and the lower limit dynamic voltage is used as the lower limit of discharge, and the charge and discharge test is carried out cyclically. With the increase of the cycle charge and discharge test times, the battery capacity continues to decrease, and the discharge depth As it continues to shrink, it leads to deviations in test data, which in turn affects test results and subsequent data applications.
为了解决上述问题，本公开提供了一种电池测试的方法、装置、存储介质及电子设备。该方法通过在电池循环寿命测试中每隔预设次数的充放电测试后，对电池进行满充满放操作并更新上限动态电压和下限动态电压，在之后的充放电测试中使用更新后的上限动态电压作为充电上限，使用更新后的下限动态电压作为充电下限，从而保证了循环充放电测试中，放电深度基本不变，保证了测试数据的准确性，通过该方法，测试得到较精确的电池循环寿命测试数据，以便根据该数据评估电池产品使用年限和使用里程的场景。In order to solve the above problems, the present disclosure provides a battery testing method, device, storage medium and electronic equipment. In this method, after every preset number of charging and discharging tests in the battery cycle life test, the battery is fully charged and discharged, and the upper limit dynamic voltage and the lower limit dynamic voltage are updated, and the updated upper limit dynamic voltage is used in the subsequent charge and discharge tests. The voltage is used as the charging upper limit, and the updated lower limit dynamic voltage is used as the charging lower limit, so as to ensure that the discharge depth is basically unchanged in the cycle charge and discharge test, and the accuracy of the test data is guaranteed. Through this method, the test can obtain a more accurate battery cycle Life test data, so as to evaluate the service life and mileage scenarios of battery products based on the data.
下面结合具体的实施例对本公开进行说明。The present disclosure will be described below in conjunction with specific embodiments.
图1是本公开实施例的一种电池测试的方法的流程图，如图1所示，该方法包括：Fig. 1 is a flow chart of a battery testing method according to an embodiment of the present disclosure. As shown in Fig. 1, the method includes:
S101、获取电池的电池参数。S101. Acquire battery parameters of the battery.
其中，该电池参数包括上限SOC、下限SOC、满电电压和空电电压，SOC表示电池剩余容量与电池完全充电状态的容量的比值,用百分数表示，其取值范围可以为0%~100%。Among them, the battery parameters include upper limit SOC, lower limit SOC, full-charge voltage and empty-charge voltage, SOC represents the ratio of the remaining capacity of the battery to the capacity of the fully charged state of the battery, expressed as a percentage, and its value range can be 0%~100% .
上限SOC是电池寿命循环测试中的充电终止条件，表示在充电过程中，电池的容量达到上限SOC对应的容量时，停止充电。同样的，下限SOC是电池寿命循环测试中的放电终止条件，表示在放电过程中，电池的容量达到下限SOC对应的容量时，停止放电。The upper limit SOC is the charging termination condition in the battery life cycle test, which means that during the charging process, when the capacity of the battery reaches the capacity corresponding to the upper limit SOC, charging will stop. Similarly, the lower limit SOC is the discharge termination condition in the battery life cycle test, which means that during the discharge process, when the capacity of the battery reaches the capacity corresponding to the lower limit SOC, the discharge will stop.
满电电压是指电池完全充满电时的电压，空电电压是指电池完全放空电时的电压。The full voltage refers to the voltage when the battery is fully charged, and the empty voltage refers to the voltage when the battery is completely discharged.
在本步骤中，上限SOC和下限SOC可以根据电池厂家的测试需求预先确定，例如上限SOC可以为97%，下限SOC可以为5%；由于电池的生产厂家提供的电池说明书中记录有该电池的满电电压和空电电压，因此，可以根据该电池的说明书中记录的满电电压和空电电压预先设置该满电电压和空电电压。例如满电电压可以为4.2V（伏特），空电电压可以为3.0V。In this step, the upper limit SOC and the lower limit SOC can be pre-determined according to the test requirements of the battery manufacturer. For example, the upper limit SOC can be 97%, and the lower limit SOC can be 5%. Full charge voltage and empty charge voltage, therefore, the full charge voltage and empty charge voltage can be preset according to the full charge voltage and empty charge voltage recorded in the instruction manual of the battery. For example, the full voltage can be 4.2V (volts), and the empty voltage can be 3.0V.
S102、根据上限SOC确定电池的第一上限动态电压，根据下限SOC确定电池的第一下限动态电压。S102. Determine the first upper limit dynamic voltage of the battery according to the upper limit SOC, and determine the first lower limit dynamic voltage of the battery according to the lower limit SOC.
电池测试要求中一般给出上限SOC作为循环测试的充电终止条件，下限SOC作为循环测试的放电终止条件，但实际在电池测试中SOC无法实时准确的测量，因此在实际电池测试中为了方便测量，可以用上限SOC对应的上限动态电压作为实际充电终止条件，用下限SOC对应的下限动态电压作为实际放电终止条件。In the battery test requirements, the upper limit SOC is generally given as the charging termination condition of the cycle test, and the lower limit SOC is used as the discharge termination condition of the cycle test. However, in actual battery testing, SOC cannot be measured accurately in real time. Therefore, for the convenience of measurement in actual battery testing, The upper limit dynamic voltage corresponding to the upper limit SOC can be used as the actual charge termination condition, and the lower limit dynamic voltage corresponding to the lower limit SOC can be used as the actual discharge termination condition.
其中上限SOC对应的第一上限动态电压可以通过充电容量电压关系确定，该充电容量电压关系包括电池在充电过程中，SOC和动态电压的对应关系，一种充电容量电压关系的示例如下表1所示：The first upper limit dynamic voltage corresponding to the upper limit SOC can be determined by the charging capacity voltage relationship, the charging capacity voltage relationship includes the corresponding relationship between the SOC and the dynamic voltage during the charging process of the battery, an example of the charging capacity voltage relationship is shown in Table 1 below Show:
表1Table 1
如表1所示，当SOC为0%时，对应的动态电压为3.0V；当SOC为5%时，对应的动态电压为3.5V；当SOC为10%时，对应的动态电压为3.68V，以此类推。这样，当上限SOC为97%时，通过该充电容量电压关系可以得到对应的上限动态电压为4.15V，可以用该上限动态电压4.15V作为充电终止条件，也就是在电池的电压经过充电后达到4.15V时，停止充电。As shown in Table 1, when the SOC is 0%, the corresponding dynamic voltage is 3.0V; when the SOC is 5%, the corresponding dynamic voltage is 3.5V; when the SOC is 10%, the corresponding dynamic voltage is 3.68V , and so on. In this way, when the upper limit SOC is 97%, the corresponding upper limit dynamic voltage can be obtained through the charging capacity voltage relationship as 4.15V, and the upper limit dynamic voltage 4.15V can be used as the charging termination condition, that is, the battery voltage reaches When 4.15V, stop charging.
需要说明的是，充电容量电压关系可以给出SOC从0%到100%的任意数值对应的动态电压，并不局限于表1所给出的示例。It should be noted that the charging capacity voltage relationship can give the dynamic voltage corresponding to any value of SOC from 0% to 100%, and is not limited to the examples given in Table 1.
同样的，下限SOC对应的第一下限动态电压可以通过放电容量电压关系确定，该放电容量电压关系包括电池在放电过程中，SOC和动态电压的对应关系，一种放电容量电压关系的示例如下表2所示：Similarly, the first lower limit dynamic voltage corresponding to the lower limit SOC can be determined by the discharge capacity voltage relationship. The discharge capacity voltage relationship includes the corresponding relationship between the SOC and the dynamic voltage during the battery discharge process. An example of the discharge capacity voltage relationship is shown in the following table 2 shows:
表2Table 2
如表2所示，当SOC为100%时，对应的动态电压为4.20V；当SOC为97%时，对应的动态电压为4.17V；当SOC为95%时，对应的动态电压为4.14V，以此类推。这样，当下限SOC为5%时，通过该充电容量电压关系可以得到对应的下限动态电压为3.52V。可以以该下限动态电压3.52V作为放电终止条件，也就是在电池放电达到3.52V时，停止放电。As shown in Table 2, when the SOC is 100%, the corresponding dynamic voltage is 4.20V; when the SOC is 97%, the corresponding dynamic voltage is 4.17V; when the SOC is 95%, the corresponding dynamic voltage is 4.14V , and so on. In this way, when the lower limit SOC is 5%, the corresponding lower limit dynamic voltage can be obtained as 3.52V through the charging capacity voltage relationship. The lower limit dynamic voltage of 3.52V can be used as the discharge termination condition, that is, when the battery discharge reaches 3.52V, the discharge is stopped.
同样需要说明的是，放电容量电压关系可以给出SOC从0%到100%的任意数值对应的动态电压，并不局限于表2所给出的示例。It should also be noted that the discharge capacity voltage relationship can give the dynamic voltage corresponding to any value of SOC from 0% to 100%, and is not limited to the examples given in Table 2.
上述充电容量电压关系和放电容量电压关系可以根据电池生产或出厂时提供的仿真或测试数据得到。The above-mentioned charging capacity voltage relationship and discharging capacity voltage relationship can be obtained according to the simulation or test data provided when the battery is produced or leaves the factory.
S103、对电池进行预设次数的充放电测试，该充放电测试包括：通过充电操作将电池的电压调整至第一上限动态电压，并通过放电操作将电池的电压调整至第一下限动态电压。S103. Perform a preset number of charging and discharging tests on the battery, the charging and discharging tests include: adjusting the voltage of the battery to a first upper limit dynamic voltage through a charging operation, and adjusting the voltage of the battery to a first lower limit dynamic voltage through a discharging operation.
其中，该预设次数可以根据实际的测量环境进行设置，示例地，该预设次数可以为50次至150次，如可以是100次。Wherein, the preset number of times may be set according to the actual measurement environment, for example, the preset number of times may be 50 times to 150 times, such as 100 times.
具体的，一种充放电测试的示例方法包括：在恒定温度下，首先以恒定电流对待测试的电池进行充电操作，充电过程中测量电池的动态电压，直到该动态电压达到上述第一上限动态电压后，停止充电，将电池搁置一定时间，例如10分钟后，以同样的恒定电流对该电池进行放电操作，放电过程中测量电池的动态电压，直到该动态电压达到上述第一下限动态电压后，停止放电，这样一个完整的循环作为一次充放电测试。示例的：上述恒定温度可以是25℃（摄氏度），上述恒定电流可以是1A（安培）。Specifically, an example method of charge and discharge test includes: at a constant temperature, first charge the battery to be tested with a constant current, and measure the dynamic voltage of the battery during the charging process until the dynamic voltage reaches the above-mentioned first upper limit dynamic voltage Finally, stop charging, put the battery on hold for a certain period of time, for example, after 10 minutes, discharge the battery with the same constant current, measure the dynamic voltage of the battery during the discharge process, until the dynamic voltage reaches the above-mentioned first lower limit dynamic voltage, Stop discharging, such a complete cycle as a charge and discharge test. Exemplary: the above constant temperature may be 25° C. (Celsius), and the above constant current may be 1 A (ampere).
需要说明的是，考虑到待测试的电池中可能存在残余的电量，因此，在进行充放电测试前，可以将待测试的电池放电至空电电压，再进行上述充放电测试，从而增加充放电测试的准确性。It should be noted that, considering that there may be residual power in the battery to be tested, therefore, before performing the charge and discharge test, the battery to be tested can be discharged to an empty voltage, and then the above charge and discharge test is performed, thereby increasing the charging and discharging capacity. The accuracy of the test.
另外，在充电过程或放电过程中，测量电池的动态电压，可以实时测量，也可以周期性测量，例如，可以每秒测量一次或者每分钟测量一次。In addition, during the charging process or the discharging process, the dynamic voltage of the battery can be measured in real time or periodically, for example, once per second or once per minute.
需要说明的是，本步骤中的充放电测试可以参考相关技术中的具体实现方式，例如循环寿命测试，本公开在此不做赘述。It should be noted that, for the charging and discharging test in this step, reference may be made to specific implementations in related technologies, such as cycle life testing, which will not be repeated in this disclosure.
S104、对电池进行满充操作和满放操作，确定第二上限动态电压和第二下限动态电压。S104. Perform a full charge operation and a full discharge operation on the battery, and determine a second upper limit dynamic voltage and a second lower limit dynamic voltage.
该满充操作包括通过充电操作将所池的电压由空电电压调整至满电电压，该满放操作包括通过放电操作将电池的电压由满电电压调整至空电电压。The full charging operation includes adjusting the voltage of the battery from an empty voltage to a full voltage through a charging operation, and the full discharging operation includes adjusting the voltage of the battery from a full voltage to an empty voltage through a discharging operation.
由于电池已经进行了预设次数的充放电测试，电池性能会有一定衰减，此时当前的电池容量相比测试前的电池容量有所降低，所以此时根据满充操作得到的上限SOC对应的第二上限动态电压相对第一上限动态电压会有变化，同样的，根据满放操作得到的下限SOC对应的第二下限动态电压相对第一下限动态电压也会有变化。Because the battery has been charged and discharged for a preset number of times, the performance of the battery will be attenuated. At this time, the current battery capacity is lower than that before the test. Therefore, the upper limit SOC obtained according to the full charge operation at this time corresponds to The second upper limit dynamic voltage will vary relative to the first upper limit dynamic voltage. Similarly, the second lower limit dynamic voltage corresponding to the lower limit SOC obtained according to the full discharge operation will also change relative to the first lower limit dynamic voltage.
需要说明的是，本步骤中，在满充操作之前，可以将电池放空电，也就是对该电池进行放电操作，直到电池的电压达到空电电压，然后再进行满充操作和满放操作。It should be noted that, in this step, before the full charge operation, the battery can be discharged, that is, the battery is discharged until the voltage of the battery reaches the empty voltage, and then the full charge operation and the full discharge operation are performed.
S105、将该第二上限动态电压作为新的第一上限动态电压，将该第二下限动态电压作为新的第一下限动态电压。S105. Use the second upper limit dynamic voltage as a new first upper limit dynamic voltage, and use the second lower limit dynamic voltage as a new first lower limit dynamic voltage.
S106、根据新的第一上限动态电压和新的第一下限动态电压，循环执行对电池进行预设次数的充放电测试的步骤至将该第二上限动态电压作为新的第一上限动态电压，将该第二下限动态电压作为新的第一下限动态电压的步骤，直至测试完成。S106. According to the new first upper limit dynamic voltage and the new first lower limit dynamic voltage, cyclically execute the step of performing a preset number of charge and discharge tests on the battery until the second upper limit dynamic voltage is used as the new first upper limit dynamic voltage, The step of using the second lower limit dynamic voltage as a new first lower limit dynamic voltage until the test is completed.
具体地，根据新的第一上限动态电压和新的第一下限动态电压，循环执行上述步骤S103至S105，直至测试完成。Specifically, according to the new first upper limit dynamic voltage and the new first lower limit dynamic voltage, the above steps S103 to S105 are cyclically executed until the test is completed.
需要说明的是，本步骤中判断电池测试完成的方法有多种，可以参考相关技术中的具体实现方式，本公开对此不作限定。例如，电池测试完成可以是根据测试计划完成了预设总次数的充放电测试，该预设总次数可以是上述S103步骤中预设次数的整数倍。再如，电池测试完成也可以是电池容量衰减达到了目标值，也就是通过满充满放操作得到的满放电容量与电池初始容量的比值小于等于目标值，示例地，该目标值可以是80%或者60%，上述电池初始容量可以根据电池厂家提供的电池说明书获取，也可以在电池测试之前通过一次满充满放操作获取。It should be noted that there are many methods for judging the completion of the battery test in this step, and reference may be made to specific implementation methods in related technologies, which are not limited in the present disclosure. For example, the completion of the battery test may be the completion of a preset total number of charging and discharging tests according to the test plan, and the preset total number of times may be an integer multiple of the preset number of times in the above step S103. For another example, the completion of the battery test may also mean that the battery capacity attenuation has reached the target value, that is, the ratio of the full discharge capacity obtained through the full-full discharge operation to the initial battery capacity is less than or equal to the target value. For example, the target value may be 80%. Or 60%, the above initial capacity of the battery can be obtained according to the battery manual provided by the battery manufacturer, or it can be obtained by a full charge and discharge operation before the battery test.
通过上述方法，在电池循环寿命测试中每隔预设次数的充放电测试后，对电池进行满充满放操作并更新上限动态电压和下限动态电压，在之后的充放电测试中使用更新后的上限动态电压作为充电上限，使用更新后的下限动态电压作为充电下限，从而保证了循环充放电测试中，放电深度基本不变，保证了测试数据的准确性，通过该方法，给出了较精确的电池循环寿命测试数据和结果，以便根据该数据评估电池产品使用年限和使用里程的场景。Through the above method, after every preset number of charge and discharge tests in the battery cycle life test, the battery is fully charged and discharged, and the upper limit dynamic voltage and the lower limit dynamic voltage are updated, and the updated upper limit is used in subsequent charge and discharge tests The dynamic voltage is used as the charging upper limit, and the updated lower dynamic voltage is used as the charging lower limit, so as to ensure that the discharge depth is basically unchanged in the cycle charge and discharge test, and the accuracy of the test data is guaranteed. Through this method, a more accurate Battery cycle life test data and results, in order to evaluate battery life and mileage scenarios based on this data.
图2为上述步骤S104一种可能的确定第二上限动态电压的方法，如图2所示，该方法包括：Fig. 2 is a possible method for determining the second upper limit dynamic voltage of the above step S104, as shown in Fig. 2, the method includes:
S1041、在对电池进行满充操作的过程中，周期性获取电池充电容量对应的电池动态电压。S1041. During the process of fully charging the battery, periodically acquire the dynamic voltage of the battery corresponding to the charging capacity of the battery.
示例的：在电池电压处于空电电压的情况下，该满充操作可以包括，在恒定温度下，以恒定电流对电池进行充电，使得该电池的电压从空电电压调整到满电电压。在该满充操作过程中，可以按照第一测量周期，周期性测量该电池在每个测量时刻的电池动态电压，并用从满充操作开始时刻到该测量时刻的时间差与该恒定电流的乘积得到该测量时刻的电池充电容量，并记录该电池在该测量时刻的该电池充电容量和该电池动态电压，直到该电池的动态电压达到上述满电电压后，停止充电，停止充电时刻记录一次该电池停止充电时刻的电池充电容量和电池动态电压，将停止充电时刻的电池充电容量作为该电池的总充电容量。Exemplary: when the battery voltage is at an empty voltage, the full charge operation may include charging the battery with a constant current at a constant temperature, so that the voltage of the battery is adjusted from the empty voltage to the full voltage. During the full charge operation, the battery dynamic voltage at each measurement moment can be periodically measured according to the first measurement cycle, and the product of the time difference from the start moment of the full charge operation to the measurement moment and the constant current can be obtained The charging capacity of the battery at the measurement time, and record the battery charging capacity and the dynamic voltage of the battery at the measurement time, until the dynamic voltage of the battery reaches the above-mentioned full voltage, stop charging, and record the battery once at the time of stopping charging The charging capacity of the battery and the dynamic voltage of the battery at the moment of stopping charging, the charging capacity of the battery at the moment of stopping charging is taken as the total charging capacity of the battery.
S1042、根据电池充电容量和电池动态电压更新充电容量电压关系。S1042. Update the charging capacity voltage relationship according to the battery charging capacity and the battery dynamic voltage.
示例的：根据上述S1041步骤中记录的每个测量时刻的电池充电容量与上述总充电容量的比值得到对应每个测量时刻的SOC，也就可以得到本次充电过程中SOC与电池动态电压的对应关系，可以用该对应关系更新充电容量电压关系。Exemplary: According to the ratio of the battery charging capacity at each measurement moment recorded in the above S1041 step to the above-mentioned total charging capacity, the SOC corresponding to each measurement moment is obtained, and the correspondence between the SOC and the battery dynamic voltage during this charging process can be obtained relationship, which can be used to update the charging capacity voltage relationship.
需要说明的是，由于电池已经进行了预设次数的充放电测试，电池性能会有一定衰减，此时电池的总充电容量相比测试前的总充电容量会有所降低，充电过程中SOC对应的电池动态电压也会有所不同，因此，用该方法可以得到新的充电容量电压关系。It should be noted that since the battery has been charged and discharged for a preset number of times, the performance of the battery will be attenuated. At this time, the total charging capacity of the battery will be lower than the total charging capacity before the test. During the charging process, the SOC corresponds to The dynamic voltage of the battery will also be different, so a new relationship between the charging capacity and voltage can be obtained with this method.
S1043、根据更新后的充电容量电压关系确定第二上限动态电压。S1043. Determine the second upper limit dynamic voltage according to the updated charging capacity voltage relationship.
示例的，可以根据更新后的充电容量电压关系，确定上限SOC对应的第二上限动态电压，确定的方式可以参考S102步骤中的具体实现方式，本步骤不再赘述。For example, the second upper limit dynamic voltage corresponding to the upper limit SOC can be determined according to the updated charging capacity voltage relationship, and the determination method can refer to the specific implementation in step S102, and this step will not be described again.
这样，更新后的上限动态电压能够准确对应到上限SOC，在后续的充放电测试中使用更新后的该上限动态电压，能够获得更加准确的测试结果。In this way, the updated upper limit dynamic voltage can accurately correspond to the upper limit SOC, and the updated upper limit dynamic voltage can be used in subsequent charge and discharge tests to obtain more accurate test results.
图3为上述步骤S104一种可能的确定第二下限动态电压的方法，如图3所示，该方法包括：Fig. 3 is a possible method for determining the second lower limit dynamic voltage of the above step S104, as shown in Fig. 3, the method includes:
S1044、在对电池进行满放操作的过程中，周期性获取电池放电容量对应的电池动态电压。S1044. During the process of fully discharging the battery, periodically acquire the dynamic voltage of the battery corresponding to the discharge capacity of the battery.
示例地，在电池电压处于满电电压的情况下，该满放操作可以包括，在恒定温度下，以恒定电流对电池进行放电操作使得该电池的电压从满电电压调整到空电电压。在该满放操作过程中，可以按照第二测量周期，周期性测量该电池在每个测量时刻的电池动态电压，并用从满放操作开始时刻到该测量时刻的放电时间差与该恒定电流的乘积得到该测量时刻的电池放电容量，并记录该电池在该测量时刻的该电池放电容量和该电池动态电压，直到该电池的动态电压达到上述空电电压后，停止放电，停止放电时刻记录一次该电池停止放电时刻的电池放电容量和电池动态电压，停止放电时刻的电池放电容量为该电池的总放电容量。For example, when the voltage of the battery is at the full voltage, the full discharge operation may include, at a constant temperature, discharging the battery with a constant current so that the voltage of the battery is adjusted from the full voltage to the empty voltage. During the full discharge operation, the battery dynamic voltage at each measurement moment can be periodically measured according to the second measurement period, and the product of the discharge time difference from the full discharge operation start time to the measurement moment and the constant current can be used Obtain the battery discharge capacity at the measurement moment, and record the battery discharge capacity and the battery dynamic voltage at the measurement moment, until the dynamic voltage of the battery reaches the above-mentioned empty voltage, stop discharging, and record the battery at the time of stopping discharge. The battery discharge capacity and the battery dynamic voltage at the time when the battery stops discharging, and the battery discharge capacity at the time when the battery stops discharging is the total discharge capacity of the battery.
S1045、根据电池放电容量和电池动态电压更新放电容量电压关系。S1045. Update the discharge capacity voltage relationship according to the battery discharge capacity and the battery dynamic voltage.
示例的：根据上述S1044步骤中记录的每个测量时刻的电池放电容量与上述总放电容量的比值得到对应每个测量时刻的SOC，也就可以得到本次充电过程中SOC与电池动态电压的对应关系，可以用该对应关系更新放电容量电压关系。Example: According to the ratio of the battery discharge capacity at each measurement moment recorded in the above S1044 step to the above-mentioned total discharge capacity, the SOC corresponding to each measurement moment is obtained, and the correspondence between the SOC and the battery dynamic voltage during this charging process can be obtained relationship, which can be used to update the discharge capacity voltage relationship.
需要说明的是，由于电池已经进行了预设次数的充放电测试，电池性能会有一定衰减，此时电池的总放电容量相比测试前的总放电容量会有所降低，放电过程中SOC对应的动态电压也会有所不同，因此，可以用该方法得到新的放电容量电压关系。It should be noted that since the battery has been subjected to a preset number of charge and discharge tests, the performance of the battery will be attenuated. At this time, the total discharge capacity of the battery will be lower than that before the test. The dynamic voltage will also be different, therefore, the new discharge capacity voltage relationship can be obtained by this method.
S1046、根据更新后的放电容量电压关系确定第二下限动态电压。S1046. Determine the second lower limit dynamic voltage according to the updated discharge capacity voltage relationship.
示例的，可以根据更新后的放电容量电压关系，确定下限SOC对应的第二下限动态电压，确定的方式可以参考S102步骤中的具体实现方式，本步骤不再赘述。For example, the second lower limit dynamic voltage corresponding to the lower limit SOC can be determined according to the updated discharge capacity voltage relationship, and the determination method can refer to the specific implementation method in step S102, and this step will not be described again.
这样，在后续的充放电测试中使用更新后的该下限动态电压，能够获得更加准确的测试结果。In this way, more accurate test results can be obtained by using the updated lower limit dynamic voltage in subsequent charge and discharge tests.
考虑到在满充测试中由于充电损耗等因素，可能会导致上限动态电压存在偏差。另外如果满充满放过程中测量并记录动态电压和电池容量的周期设置偏大，例如10分钟，也有可能导致通过满充满放操作得到的上限动态电压和下限动态电压会有一定偏差。因此，为了尽量减少通过满充满放操作得到的上限动态电压和下限动态电压存在的偏差，还可以对第一上限动态电压和第一下限动态电压进行校准得到更为精确的值，下面分别通过图4和图5对第一上限动态电压进行校准和对第一下限动态电压进行校准进行说明。Considering that due to charging loss and other factors in the full charge test, there may be deviations in the upper limit dynamic voltage. In addition, if the period of measuring and recording the dynamic voltage and battery capacity during the full charge and discharge process is set too long, such as 10 minutes, it may also cause a certain deviation between the upper limit dynamic voltage and the lower limit dynamic voltage obtained through the full charge and discharge operation. Therefore, in order to minimize the deviation between the upper limit dynamic voltage and the lower limit dynamic voltage obtained through the full charge and discharge operation, the first upper limit dynamic voltage and the first lower limit dynamic voltage can also be calibrated to obtain more accurate values. 4 and FIG. 5 illustrate the calibration of the first upper limit dynamic voltage and the calibration of the first lower limit dynamic voltage.
图4为上述步骤S1043中一种可能的确定第二上限动态电压的方法，如图4所示，该方法包括：Fig. 4 is a possible method for determining the second upper limit dynamic voltage in the above step S1043, as shown in Fig. 4, the method includes:
S10431、通过更新后的充电容量电压关系确定上限SOC对应的候选上限动态电压。S10431. Determine a candidate upper limit dynamic voltage corresponding to the upper limit SOC according to the updated charging capacity voltage relationship.
S10432、获取电池的第一放电容量，以及电池在进行满放操作后的总放电容量。S10432. Obtain the first discharge capacity of the battery and the total discharge capacity of the battery after the full discharge operation.
其中，第一放电容量包括该电池的电压通过充电操作由空电电压调整至候选上限动态电压，并通过放电操作由候选上限动态电压调整至空电电压时的放电容量；总放电容量包括该电池的电压由满电电压调整至空电电压时的放电容量。Wherein, the first discharge capacity includes the discharge capacity when the voltage of the battery is adjusted from the empty voltage to the candidate upper limit dynamic voltage through the charging operation, and is adjusted from the candidate upper limit dynamic voltage to the empty voltage through the discharge operation; the total discharge capacity includes the battery The discharge capacity when the voltage is adjusted from full voltage to empty voltage.
获取第一放电容量的一种方式可以包括：在恒定温度下，用恒定电流进行充电操作，先将该电池的动态电压通过该充电操作由空电电压调整至该候选上限动态电压，然后用该恒定电流进放电操作，获取通过该放电操作将该电池的动态电压由该候选上限动态电压调整至空电电压时的放电容量作为该第一放电容量。需要说明的是，由于电池动态电压在充电和放电过程是不稳定的，因此为了更加精确的测量，在该放电操作前先做一次充电操作。在另外的可选方法中，也可以在该电池的动态电压为候选上限动态电压的情况下，直接进行上述放电操作得到第一放电容量。A way to obtain the first discharge capacity may include: performing a charging operation with a constant current at a constant temperature, first adjusting the dynamic voltage of the battery from the empty voltage to the candidate upper limit dynamic voltage through the charging operation, and then using the A constant current discharge operation is carried out, and the discharge capacity when the dynamic voltage of the battery is adjusted from the candidate upper limit dynamic voltage to an empty voltage through the discharge operation is obtained as the first discharge capacity. It should be noted that since the dynamic voltage of the battery is unstable during the charging and discharging process, for more accurate measurement, a charging operation is performed before the discharging operation. In another optional method, when the dynamic voltage of the battery is a candidate upper limit dynamic voltage, the above discharge operation may be directly performed to obtain the first discharge capacity.
S10433、根据第一放电容量和总放电容量校准候选上限动态电压，得到第二上限动态电压。S10433. Calibrate the candidate upper limit dynamic voltage according to the first discharge capacity and the total discharge capacity to obtain a second upper limit dynamic voltage.
在本步骤中，可以通过以下方式校准候选上限动态电压，得到第二上限动态电压：In this step, the candidate upper limit dynamic voltage can be calibrated in the following manner to obtain the second upper limit dynamic voltage:
首先，获取第一放电容量与总放电容量的第一比值。Firstly, a first ratio of the first discharge capacity to the total discharge capacity is obtained.
其次，在该第一比值在预设上限阈值范围内的情况下，将该候选上限动态电压作为第二上限动态电压，在该第一比值在该预设上限阈值范围外的情况下，调整候选上限动态电压。Secondly, when the first ratio is within the preset upper limit threshold range, the candidate upper limit dynamic voltage is used as the second upper limit dynamic voltage; when the first ratio is outside the preset upper limit threshold range, the candidate upper limit dynamic voltage is adjusted. Upper limit dynamic voltage.
其中，该预设上限阈值范围是预先设置的以上限SOC为中值的阈值范围。Wherein, the preset upper threshold range is a preset threshold range with the upper limit SOC as the median.
示例的，上限SOC可以为97%，则该预设上限阈值范围可以是大于等于96.5%且小于等于97.5%的范围，其中96.5%是该预设上限阈值范围下边界，97.5%是该预设上限阈值范围上边界。当得到的第一比值为96.8%时，确认该第一比值在该预设上限阈值范围内，将该候选上限动态电压作为第二上限动态电压；当得到的第一比值为96.1%时，确认该第一比值在该预设上限阈值范围外，需要调整候选上限动态电压，进一步地，该第一比值小于该预设上限阈值范围下边界，将该候选上限动态电压的值增加第一预设步长，作为新的候选上限动态电压；当得到的第一比值为97.6%时，则确认该第一比值在该预设上限阈值范围外，需要调整候选上限动态电压，进一步地，该第一比值大于该预设上限阈值范围上边界，则将该候选上限动态电压的值减少该第一预设步长，作为新的候选上限动态电压。其中的第一预设步长可以根据实际电压变化范围确定，例如可以是0.1V或0.3V。For example, the upper limit SOC can be 97%, then the preset upper threshold range can be greater than or equal to 96.5% and less than or equal to 97.5%, wherein 96.5% is the lower boundary of the preset upper threshold range, and 97.5% is the preset Upper threshold range upper boundary. When the obtained first ratio is 96.8%, confirm that the first ratio is within the preset upper threshold range, and use the candidate upper limit dynamic voltage as the second upper limit dynamic voltage; when the obtained first ratio is 96.1%, confirm If the first ratio is outside the preset upper limit threshold range, it is necessary to adjust the candidate upper limit dynamic voltage; The step size is used as a new candidate upper limit dynamic voltage; when the obtained first ratio is 97.6%, it is confirmed that the first ratio is outside the preset upper limit threshold range, and the candidate upper limit dynamic voltage needs to be adjusted. Further, the first If the ratio is greater than the upper boundary of the preset upper limit threshold range, then the value of the candidate upper dynamic voltage is reduced by the first preset step to be a new candidate upper dynamic voltage. The first preset step size can be determined according to the actual voltage variation range, for example, it can be 0.1V or 0.3V.
最后，在该第一比值在该预设上限阈值范围外的情况下，继续根据调整后的候选上限动态电压获取新的第一放电容量，并获取新的第一放电容量与总放电容量的第一比值，直至该第一比值在该预设上限阈值范围内，将调整后的候选上限动态电压作为第二上限动态电压。Finally, if the first ratio is outside the preset upper limit threshold range, continue to obtain a new first discharge capacity according to the adjusted candidate upper limit dynamic voltage, and obtain the new first discharge capacity and the first value of the total discharge capacity. A ratio, until the first ratio is within the preset upper threshold range, the adjusted candidate upper dynamic voltage is used as the second upper dynamic voltage.
这样，通过上述方法，可以校准得到更加准确的上限动态电压。In this way, through the above method, a more accurate upper limit dynamic voltage can be calibrated.
图5为上述步骤S1046一种可能的确定第二下限动态电压的方法，如图5所示，该方法包括：Fig. 5 is a possible method for determining the second lower limit dynamic voltage of the above step S1046, as shown in Fig. 5, the method includes:
S10461、通过更新后的放电容量电压关系确定下限SOC对应的候选下限动态电压。S10461. Determine a candidate lower limit dynamic voltage corresponding to the lower limit SOC through the updated discharge capacity voltage relationship.
S10462、获取该电池的第二放电容量，以及该电池在进行满放操作后的总放电容量。S10462. Obtain the second discharge capacity of the battery and the total discharge capacity of the battery after the full discharge operation.
其中，第二放电容量包括该电池的电压由满电电压调整至候选下限动态电压时的放电容量；总放电容量包括该电池的电压由满电电压调整至空电电压时的放电容量。Wherein, the second discharge capacity includes the discharge capacity when the voltage of the battery is adjusted from the full voltage to the candidate lower limit dynamic voltage; the total discharge capacity includes the discharge capacity when the voltage of the battery is adjusted from the full voltage to the empty voltage.
获取第二放电容量的一种方式可以包括：在恒定温度下，用恒定电流进行满充操作，先将该电池的动态电压通过该充电操作由空电电压调整至满电电压，然后用该恒定电流进放电操作，获取通过该放电操作将该电池的动态电压由满电电压调整至该候选下限动态电压时的放电容量作为该第二放电容量。需要说明的是，由于电池动态电压在充电和放电过程是不稳定的，因此为了更加精确的测量，在该放电操作前先做一次充电操作。在另外的可选方法中，也可以在该电池的动态电压为满电电压的情况下，直接进行上述放电操作得到第二放电容量。One way to obtain the second discharge capacity may include: at a constant temperature, use a constant current to perform a full charge operation, first adjust the dynamic voltage of the battery from an empty voltage to a full charge voltage through the charge operation, and then use the constant The current enters the discharge operation, and the discharge capacity when the dynamic voltage of the battery is adjusted from the full charge voltage to the candidate lower limit dynamic voltage through the discharge operation is obtained as the second discharge capacity. It should be noted that since the dynamic voltage of the battery is unstable during the charging and discharging process, for more accurate measurement, a charging operation is performed before the discharging operation. In another optional method, when the dynamic voltage of the battery is a fully charged voltage, the above discharge operation may be directly performed to obtain the second discharge capacity.
S10463、根据总放电容量和第二放电容量校准候选下限动态电压，得到第二下限动态电压。S10463. Calibrate the candidate lower limit dynamic voltage according to the total discharge capacity and the second discharge capacity to obtain a second lower limit dynamic voltage.
在本步骤中，可以通过以下方式校准候选下限动态电压：In this step, the candidate lower limit dynamic voltage can be calibrated by:
首先，获取第二放电容量与总放电容量的第二比值；First, obtain a second ratio of the second discharge capacity to the total discharge capacity;
其次，在该第二比值在预设下限阈值范围内的情况下，将候选下限动态电压作为第二下限动态电压，在该第二比值在该预设下限阈值范围外的情况下，调整候选下限动态电压。Secondly, when the second ratio is within the preset lower limit threshold range, the candidate lower limit dynamic voltage is used as the second lower limit dynamic voltage, and when the second ratio is outside the preset lower limit threshold range, the candidate lower limit is adjusted. dynamic voltage.
示例的，该预设下限阈值范围可以通过以下方法预先设置，首先用SOC最大值减去下限SOC得到SOC阈值，然后确定一个以该SOC阈值为中值的阈值范围作为该预设下限阈值范围，例如SOC最大值为100%,下限SOC为5%，得到SOC阈值为95%，该预设下限阈值范围可以是以95%为中值的范围，进一步的示例，该预设下限阈值范围可以是大于等于94.5%且小于等于95.5%的范围，其中94.5%是该预设下限阈值范围下边界，95.5%是该预设下限阈值范围上边界。当得到的第二比值为94.6%时，确认该第二比值在该预设下限阈值范围内，将候选下限动态电压作为第二下限动态电压；当得到的第二比值为94.1%时，确认该第二比值在该预设下限阈值范围外，需要调整候选下限动态电压，进一步地，该第二比值小于该预设下限阈值范围下边界，则将该候选上限动态电压的值减少第二预设步长，作为新的候选上限动态电压；当得到的第二比值为95.6%时，确认该第二比值在该预设下限阈值范围外，需要调整候选下限动态电压，进一步地，该第二比值大于该预设下限阈值范围上边界，则将该候选上限动态电压的值增加该第二预设步长，作为新的候选上限动态电压。其中的第二预设步长可以根据实际电压变化范围确定，例如可以是0.1V或0.2V。For example, the preset lower limit threshold range can be preset by the following method. First, subtract the lower limit SOC from the SOC maximum value to obtain the SOC threshold, and then determine a threshold range with the SOC threshold as the median value as the preset lower limit threshold range, For example, the maximum value of the SOC is 100%, and the lower limit SOC is 5%, so that the SOC threshold value is 95%, and the preset lower limit threshold range can be the range of the median value of 95%. As a further example, the preset lower limit threshold value range can be The range greater than or equal to 94.5% and less than or equal to 95.5%, wherein 94.5% is the lower boundary of the preset lower threshold range, and 95.5% is the upper boundary of the preset lower threshold range. When the obtained second ratio is 94.6%, it is confirmed that the second ratio is within the preset lower limit threshold range, and the candidate lower limit dynamic voltage is used as the second lower limit dynamic voltage; when the obtained second ratio is 94.1%, it is confirmed that the The second ratio is outside the preset lower limit threshold range, and the candidate lower limit dynamic voltage needs to be adjusted. Further, if the second ratio is smaller than the lower limit of the preset lower limit threshold range, the value of the candidate upper limit dynamic voltage is reduced by the second preset value. Step size, as a new candidate upper limit dynamic voltage; when the obtained second ratio is 95.6%, it is confirmed that the second ratio is outside the preset lower limit threshold range, and the candidate lower limit dynamic voltage needs to be adjusted, further, the second ratio If it is greater than the upper boundary of the preset lower limit threshold range, then the value of the candidate upper dynamic voltage is increased by the second preset step size to be a new candidate upper dynamic voltage. The second preset step size can be determined according to the actual voltage variation range, for example, it can be 0.1V or 0.2V.
最后，在该第二比值在该预设下限阈值范围外的情况下，继续根据调整后的候选下限动态电压获取新的第二放电容量，并获取新的第二放电容量与总放电容量的第二比值，直至该第二比值在该预设下限阈值范围内，将调整后得候选下限动态电压作为第二上限动态电压。Finally, in the case that the second ratio is outside the preset lower limit threshold range, continue to obtain a new second discharge capacity according to the adjusted candidate lower limit dynamic voltage, and obtain the ratio between the new second discharge capacity and the total discharge capacity. Two ratios, until the second ratio is within the preset lower limit threshold range, the adjusted candidate lower limit dynamic voltage is used as the second upper limit dynamic voltage.
这样，通过上述方法，可以校准得到更加准确的下限动态电压。In this way, through the above method, a more accurate lower limit dynamic voltage can be calibrated.
图6为本公开实施例提供的一种电池测试的装置的结构示意图，如图6所示，该装置包括：Fig. 6 is a schematic structural diagram of a battery testing device provided by an embodiment of the present disclosure. As shown in Fig. 6, the device includes:
参数获取模块601，用于获取电池的电池参数，该电池参数包括上限SOC、下限SOC、满电电压和空电电压；A
第一电压确定模块602，用于根据该上限SOC确定该电池的第一上限动态电压，根据该下限SOC确定该电池的第一下限动态电压；The first
充放电测试模块603，用于对该电池进行预设次数的充放电测试，该充放电测试包括：通过充电操作将该电池的电压调整至该第一上限动态电压，并通过放电操作将该电池的电压调整至该第一下限动态电压；The charge and
第二电压确定模块604，用于对该电池进行满充操作和满放操作，确定第二上限动态电压和第二下限动态电压，该满充操作包括通过充电操作将该电池的电压由该空电电压调整至该满电电压，该满放操作包括通过放电操作将该电池的电压由该满电电压调整至该空电电压；The second
电压更新模块605，用于将该第二上限动态电压作为新的第一上限动态电压，将该第二下限动态电压作为新的第一下限动态电压；A
循环执行模块606，用于根据新的第一上限动态电压和新的第一下限动态电压，循环执行对该电池进行预设次数的充放电测试的步骤至将该第二上限动态电压作为新的第一上限动态电压，将该第二下限动态电压作为新的第一下限动态电压的步骤，直至测试完成。The
可选地，该第一电压确定模块602，用于通过充电容量电压关系，确定该上限SOC对应的该第一上限动态电压，该充电容量电压关系包括该电池在充电过程中，SOC和动态电压的对应关系；通过放电容量电压关系，确定该下限SOC对应的该第一下限动态电压，该充电容量电压关系包括该电池在放电过程中，SOC和动态电压的对应关系。Optionally, the first
可选地，该第二电压确定模块604，用于在对该电池进行该满充操作的过程中，周期性获取电池充电容量对应的电池动态电压，并根据该电池充电容量和该电池动态电压更新该充电容量电压关系，并根据更新后的充电容量电压关系确定该第二上限动态电压；在对该电池进行该满放操作的过程中，周期性获取电池放电容量对应的电池动态电压，并根据该电池放电容量和该电池动态电压更新该放电容量电压关系，并根据更新后的放电容量电压关系确定该第二下限动态电压。Optionally, the second
可选地，该第二电压确定模块604，用于通过更新后的充电容量电压关系确定该上限SOC对应的候选上限动态电压；获取该电池的第一放电容量，以及该电池在进行该满放操作后的总放电容量，该第一放电容量包括该电池的电压通过充电操作由空电电压调整至该候选上限动态电压，并通过放电操作由该候选上限动态电压调整至该空电电压时的放电容量；该总放电容量包括该电池的电压由该满电电压调整至该空电电压时的放电容量；根据该第一放电容量和该总放电容量校准该候选上限动态电压，得到该第二上限动态电压。Optionally, the second
可选地，该第二电压确定模块604，用于获取该第一放电容量与该总放电容量的第一比值；在该第一比值在预设上限阈值范围内的情况下，将该候选上限动态电压作为该第二上限动态电压，该预设上限阈值范围是预先设置的以该上限SOC为中值的阈值范围；在该第一比值在该预设上限阈值范围外的情况下，调整该候选上限动态电压；继续根据调整后的候选上限动态电压获取新的第一放电容量，并获取新的第一放电容量与该总放电容量的第一比值，直至该第一比值在预设上限阈值范围内，将调整后的候选上限动态电压作为该第二上限动态电压。Optionally, the second
可选地，该第二电压确定模块604，用于通过更新后的放电容量电压关系确定该下限SOC对应的候选下限动态电压；获取该电池的第二放电容量，以及该电池在进行该满放操作后的总放电容量，该第二放电容量包括该电池的电压由该满电电压调整至该候选下限动态电压时的放电容量；该总放电容量包括该电池的电压由该满电电压调整至该空电电压时的放电容量；根据该总放电容量和该第二放电容量校准该候选下限动态电压，得到该第二下限动态电压。Optionally, the second
可选地，该第二电压确定模块604，用于获取该第二放电容量与该总放电容量的第二比值；在该第二比值在预设下限阈值范围内的情况下，将该候选下限动态电压作为该第二下限动态电压，该预设下限阈值范围是预先设置的以该下限SOC为中值的阈值范围；在该第二比值在该预设下限阈值范围外的情况下，调整该候选下限动态电压；继续根据调整后的候选下限动态电压获取新的第二放电容量，并获取新的第二放电容量与该总放电容量的第二比值，直至该第二比值在预设下限阈值范围内，将调整后的候选下限动态电压作为该第二上限动态电压。Optionally, the second
通过上述装置，在电池循环寿命测试中每隔预设次数的充放电测试后，对电池进行满充满放操作并更新上限动态电压和下限动态电压，在之后的充放电测试中使用更新后的上限动态电压作为充电上限，使用更新后的下限动态电压作为充电下限，从而保证了循环充放电测试中，放电深度基本不变，保证了测试数据的准确性，这样，给出了较精确的电池循环寿命测试数据和结果，以便根据该数据评估电池产品使用年限和使用里程的场景。Through the above device, after every preset number of charge and discharge tests in the battery cycle life test, the battery is fully charged and discharged, and the upper limit dynamic voltage and the lower limit dynamic voltage are updated, and the updated upper limit is used in the subsequent charge and discharge tests The dynamic voltage is used as the charging upper limit, and the updated lower dynamic voltage is used as the charging lower limit, so as to ensure that the discharge depth is basically unchanged in the cycle charge and discharge test, and the accuracy of the test data is guaranteed. In this way, a more accurate battery cycle is given. Life test data and results, in order to evaluate battery life and mileage scenarios based on this data.
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。Regarding the apparatus in the foregoing embodiments, the specific manner in which each module executes operations has been described in detail in the embodiments related to the method, and will not be described in detail here.
图7是根据一示例性实施例示出的一种电子设备700的框图。如图7所示，该电子设备700可以包括：处理器701，存储器702。该电子设备700还可以包括多媒体组件703，输入/输出（I/O）接口704，以及通信组件705中的一者或多者。Fig. 7 is a block diagram of an
其中，处理器701用于控制该电子设备700的整体操作，以完成上述的电池测试的方法中的全部或部分步骤。存储器702用于存储各种类型的数据以支持在该电子设备700的操作，这些数据例如可以包括用于在该电子设备700上操作的任何应用程序或方法的指令，以及应用程序相关的数据，例如联系人数据、收发的消息、图片、音频、视频等等。该存储器702可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，例如静态随机存取存储器（Static Random Access Memory，简称SRAM），电可擦除可编程只读存储器（Electrically Erasable Programmable Read-Only Memory，简称EEPROM），可擦除可编程只读存储器（Erasable Programmable Read-Only Memory，简称EPROM），可编程只读存储器（Programmable Read-Only Memory，简称PROM），只读存储器（Read-Only Memory，简称ROM），磁存储器，快闪存储器，磁盘或光盘。多媒体组件703可以包括屏幕和音频组件。其中屏幕例如可以是触摸屏，音频组件用于输出和/或输入音频信号。例如，音频组件可以包括一个麦克风，麦克风用于接收外部音频信号。所接收的音频信号可以被进一步存储在存储器702或通过通信组件705发送。音频组件还包括至少一个扬声器，用于输出音频信号。I/O接口704为处理器701和其他接口模块之间提供接口，上述其他接口模块可以是键盘，鼠标，按钮等。这些按钮可以是虚拟按钮或者实体按钮。通信组件705用于该电子设备700与其他设备之间进行有线或无线通信。无线通信，例如Wi-Fi，蓝牙，近场通信（Near FieldCommunication，简称NFC），2G、3G、4G、NB-IOT、eMTC、或其他5G等等，或它们中的一种或几种的组合，在此不做限定。因此相应的该通信组件705可以包括：Wi-Fi模块，蓝牙模块，NFC模块等等。Wherein, the
在一示例性实施例中，电子设备700可以被一个或多个应用专用集成电路（Application Specific Integrated Circuit，简称ASIC）、数字信号处理器（DigitalSignal Processor，简称DSP）、数字信号处理设备（Digital Signal Processing Device，简称DSPD）、可编程逻辑器件（Programmable Logic Device，简称PLD）、现场可编程门阵列（Field Programmable Gate Array，简称FPGA）、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述的电池测试的方法。In an exemplary embodiment, the
在另一示例性实施例中，还提供了一种包括程序指令的计算机可读存储介质，该程序指令被处理器执行时实现上述的电池测试的方法的步骤。例如，该计算机可读存储介质可以为上述包括程序指令的存储器702，上述程序指令可由电子设备700的处理器701执行以完成上述的电池测试的方法。In another exemplary embodiment, there is also provided a computer-readable storage medium including program instructions, and when the program instructions are executed by a processor, the steps of the above battery testing method are realized. For example, the computer-readable storage medium may be the above-mentioned
以上结合附图详细描述了本公开的优选实施方式，但是，本公开并不限于上述实施方式中的具体细节，在本公开的技术构思范围内，可以对本公开的技术方案进行多种简单变型，这些简单变型均属于本公开的保护范围。The preferred embodiments of the present disclosure have been described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure. These simple modifications all belong to the protection scope of the present disclosure.
另外需要说明的是，在上述具体实施方式中所描述的各个具体技术特征，在不矛盾的情况下，可以通过任何合适的方式进行组合。为了避免不必要的重复，本公开对各种可能的组合方式不再另行说明。In addition, it should be noted that the various specific technical features described in the above specific implementation manners may be combined in any suitable manner if there is no contradiction. In order to avoid unnecessary repetition, various possible combinations are not further described in this disclosure.
此外，本公开的各种不同的实施方式之间也可以进行任意组合，只要其不违背本公开的思想，其同样应当视为本公开所公开的内容。In addition, various implementations of the present disclosure can be combined arbitrarily, as long as they do not violate the idea of the present disclosure, they should also be regarded as the content disclosed in the present disclosure.
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