The content of the invention
The present invention solves the technical problem of the charging method and battery charging equipment that provide a kind of battery, canBy the time for heightening the upper voltage limit of constant-current charging phase to increase constant-current charging phase, filling for constant-current charging phase is improveElectricity, so as to improve charge efficiency.
In order to solve the above technical problems, one aspect of the present invention is：A kind of charging method of battery is provided,The method includes：Constant-current charge is carried out to battery using setting electric current, until the charging voltage of battery reaches preset voltage value；ItsIn, charging upper limit magnitude of voltage of the preset voltage value more than battery；Constant-voltage charge, Zhi Dao electricity are carried out to battery using preset voltage valueThe charging current in pond reaches pre-set current value；Wherein, charge cutoff current value of the pre-set current value more than or equal to battery.
Wherein, charging upper limit magnitude of voltage big 0.02V-0.025V of the preset voltage value than battery.
Wherein, charge cutoff current value big 30mA-50mA of the pre-set current value than battery.
Wherein, the charging upper limit magnitude of voltage of battery is the one kind in 4.2V, 4.35V, 4.4V；The charge cutoff electric current of batteryIt is 100mA-150mA to be worth.
In order to solve the above technical problems, another technical solution used in the present invention is：A kind of battery charging equipment is provided,Including：First positive terminal and the second negative terminal, positive pole and negative pole for connecting external power source respectively；Second positive terminalSon and the second negative terminal, positive pole and negative pole for connecting battery respectively；Controller, is used for：Using setting electric current to electricityPond carries out constant-current charge, until the charging voltage of battery reaches preset voltage value；Wherein, charging of the preset voltage value more than batteryUpper voltage limit value；Constant-voltage charge is carried out to battery using preset voltage value, until the charging current of battery reaches pre-set current value；Wherein, charge cutoff current value of the pre-set current value more than or equal to battery.
In order to solve the above technical problems, another technical solution used in the present invention is：A kind of charging side of battery is providedMethod, the method includes：Constant-current charge is carried out to battery using setting electric current, until the charging voltage of battery reaches predeterminated voltageValue；Wherein, charging upper limit magnitude of voltage of the preset voltage value more than or equal to battery；Constant pressure is carried out to battery using preset voltage valueCharge, until the charging current of battery reaches pre-set current value, then stop charging；Wherein, pre-set current value filling more than batteryElectric cutoff current value.
Wherein, charge cutoff current value big 30mA-50mA of the pre-set current value than battery.
Wherein, charging upper limit magnitude of voltage big 0.02V-0.025V of the preset voltage value than battery.
Wherein, the charging upper limit magnitude of voltage of battery is the one kind in 4.2V, 4.35V, 4.4V；The charge cutoff electric current of batteryIt is 100mA-150mA to be worth.
In order to solve the above technical problems, another technical solution used in the present invention is：A kind of battery charging equipment is provided,Including：First positive terminal and the second negative terminal, positive pole and negative pole for connecting external power source respectively；Second positive terminalSon and the second negative terminal, positive pole and negative pole for connecting battery respectively；Controller, is used for：Using setting electric current to electricityPond carries out constant-current charge, until the charging voltage of battery reaches preset voltage value；Wherein, preset voltage value is more than or equal to batteryCharging upper limit magnitude of voltage；Constant-voltage charge is carried out to battery using preset voltage value, until the charging current of battery reach it is defaultCurrent value, then stop charging；Wherein, charge cutoff current value of the pre-set current value more than battery.
The beneficial effects of the invention are as follows：The situation of prior art is different from, the charging method of battery of the invention includes：AdoptConstant-current charge is carried out to battery with setting electric current, until the charging voltage of battery reaches preset voltage value；Wherein, preset voltage valueMore than the upper voltage limit value of battery；Constant-voltage charge is carried out to battery using preset voltage value, until the charging current of battery reachesPre-set current value, then stop charging；Wherein, pre-set current value is more than charge cutoff electric current.Through the above way, on the one hand canBy the time for heightening the upper voltage limit of constant-current charging phase to increase constant-current charging phase, increase charge volume；Another aspect energyIn enough charging intervals by heightening the charge cutoff electric current of constant voltage charging phase to shorten constant voltage charging phase, improve chargingEfficiency.
Specific embodiment
Refering to Fig. 1, Fig. 1 is the schematic flow sheet of the charging method first embodiment of battery of the present invention, and the method includes：
S11：Constant-current charge is carried out to battery using setting electric current, until the charging voltage of battery reaches preset voltage value；Wherein, charging upper limit magnitude of voltage of the preset voltage value more than battery.
Wherein, the charging upper limit magnitude of voltage of battery is the rated operational voltage for representing battery, and this has according to battery sizeInstitute is different.For example, the charging upper limit voltage that main cell voltage type has 4.2V, 4.35V and 4.4V, setting is also respectively4.2V, 4.35V and 4.4V.
In the present embodiment, the blanking voltage of constant-current charging phase needs the charging upper limit magnitude of voltage more than battery.
It should be understood that in constant-current charging phase, the voltage of battery can be raised constantly, in the prior art, work as batteryVoltage when being increased to charging upper limit voltage, then constant-voltage charge can be carried out with the voltage.And in the present embodiment, when batteryAfter voltage is increased to charging upper limit voltage, continue to use constant-current charge mode, make the voltage of battery continue to raise, until voltage reachesTo predeterminated voltage, charging upper limit magnitude of voltage of the preset voltage value more than battery.
Optionally, upper voltage limit value big 0.02V-0.025V of the preset voltage value than battery.
S12：Constant-voltage charge is carried out to battery using preset voltage value, until the charging current of battery reaches predetermined currentValue；Wherein, pre-set current value is equal to the charge cutoff current value of the battery.
Wherein, the charge cutoff electric current of battery refer to system set a current value, this according to battery sizeIt is different.Optionally, the charge cutoff electric current of battery could be arranged to 100mA-150mA.
In the present embodiment, pre-set current value is equal to charge cutoff electric current.
It should be understood that in constant voltage charging phase, the electric current of battery can be reduced constantly, when the current reduction of battery is to fillingDuring electric cutoff current value, then stop the charging to battery, charging is finished.
Prior art is different from, the charging method of the battery of present embodiment includes：Battery is carried out using setting electric currentConstant-current charge, until the charging voltage of battery reaches preset voltage value；Wherein, upper voltage limit of the preset voltage value more than batteryValue；Constant-voltage charge is carried out to battery using preset voltage value, until the charging current of battery reaches pre-set current value, wherein, in advanceIf current value is equal to charge cutoff electric current.Through the above way, can be increased by heightening the upper voltage limit of constant-current charging phasePlus the time of constant-current charging phase, increase charge volume.
Refering to Fig. 2, Fig. 2 is the schematic flow sheet of the charging method second embodiment of battery of the present invention, and the method includes：
S21：Constant-current charge is carried out to battery using setting electric current, until the charging voltage of battery reaches preset voltage value；Wherein, preset voltage value is equal to the upper voltage limit value of battery.
Wherein, the charging upper limit magnitude of voltage of battery is the rated operational voltage for representing battery, and this has according to battery sizeInstitute is different.For example, the charging upper limit voltage that main cell voltage type has 4.2V, 4.35V and 4.4V, setting is also respectively4.2V, 4.35V and 4.4V.
In the present embodiment, the blanking voltage of constant-current charging phase is equal to the charging upper limit magnitude of voltage of battery.
It should be understood that in constant-current charging phase, the voltage of battery can be raised constantly, be filled when the voltage of battery is increased toDuring electric upper voltage limit, then constant-voltage charge is carried out with the voltage.
S22：Constant-voltage charge is carried out to battery using preset voltage value, until the charging current of battery reaches predetermined currentValue, then stop charging；Wherein, pre-set current value is more than charge cutoff electric current.
Wherein, the charge cutoff electric current of battery refer to system set a current value, this according to battery sizeIt is different.Optionally, the charge cutoff electric current of battery could be arranged to 100mA-150mA.
In the present embodiment, pre-set current value is more than charge cutoff electric current.
It should be understood that in constant voltage charging phase, the electric current of battery can be reduced constantly, when the current reduction of battery is in advanceIf during current value, then stopping the charging to battery, charging is finished, without being further continued for charging until electric current continues to be reduced to chargingCut-off current.
Optionally, pre-set current value 30mA-50mA bigger than charge cutoff electric current.
Prior art is different from, the charging method of the battery of present embodiment includes：Battery is carried out using setting electric currentConstant-current charge, until the charging voltage of battery reaches preset voltage value；Wherein, preset voltage value is equal to the upper voltage limit of batteryValue；Constant-voltage charge is carried out to battery using preset voltage value, until the charging current of battery reaches pre-set current value, then stops fillingElectricity；Wherein, pre-set current value is more than charge cutoff electric current.Through the above way, can be by heightening filling for constant voltage charging phaseElectric cut-off current shortens charging interval of constant voltage charging phase, improves charge efficiency.
Refering to Fig. 3, Fig. 3 is the schematic flow sheet of the implementation method of charging method the 3rd of battery of the present invention, and the method includes：
S31：Constant-current charge is carried out to battery using setting electric current, until the charging voltage of battery reaches preset voltage value；Wherein, charging upper limit magnitude of voltage of the preset voltage value more than battery.
Wherein, the charging upper limit magnitude of voltage of battery is the rated operational voltage for representing battery, and this has according to battery sizeInstitute is different.For example, the charging upper limit voltage that main cell voltage type has 4.2V, 4.35V and 4.4V, setting is also respectively4.2V, 4.35V and 4.4V.
In the present embodiment, the blanking voltage of constant-current charging phase needs the charging upper limit magnitude of voltage more than battery.
It should be understood that in constant-current charging phase, the voltage of battery can be raised constantly, in the prior art, work as batteryVoltage when being increased to charging upper limit voltage, then constant-voltage charge can be carried out with the voltage.And in the present embodiment, when batteryAfter voltage is increased to charging upper limit voltage, continue to use constant-current charge mode, make the voltage of battery continue to raise, until voltage reachesTo predeterminated voltage, charging upper limit magnitude of voltage of the preset voltage value more than battery.
Optionally, upper voltage limit value big 0.02V-0.025V of the preset voltage value than battery.
S32：Constant-voltage charge is carried out to battery using preset voltage value, until the charging current of battery reaches predetermined currentValue, then stop charging；Wherein, pre-set current value is more than charge cutoff electric current.
Wherein, the charge cutoff electric current of battery refer to system set a current value, this according to battery sizeIt is different.Optionally, the charge cutoff electric current of battery could be arranged to 100mA-150mA.
In the present embodiment, pre-set current value is more than charge cutoff electric current.
It should be understood that in constant voltage charging phase, the electric current of battery can be reduced constantly, when the current reduction of battery is in advanceIf during current value, then stopping the charging to battery, charging is finished, without being further continued for charging until electric current continues to be reduced to chargingCut-off current.
Optionally, pre-set current value 30mA-50mA bigger than charge cutoff electric current.
Present embodiment is illustrated with a specific embodiment below：
It is simultaneously the specific embodiment of the 3rd implementation method of charging method one of battery of the present invention refering to Fig. 4 and Fig. 5, Fig. 4The voltage curve of charging process, Fig. 5 is the charging of the specific embodiment of the 3rd implementation method of charging method one of battery of the present inventionThe current curve of journey.
In figures 4 and 5, dotted line represents prior art, and solid line represents present embodiment.
In the present embodiment, the charging upper limit voltage of battery is 4.35V, and charge cutoff electric current is 150mA.
In constant-current charging phase, constant-current charge is carried out to battery using setting electric current (such as 1.45A).As shown in figure 4,Constant-current charging phase, charging voltage constantly rises.In the prior art, when charging voltage rises to 4.35V (charging upper limit electricityPressure) it is to enter constant voltage charging phase, and in the present embodiment, when charging voltage rises to 4.37V, just into constant-voltage charge rankSection.
It should be understood that for the present embodiment is compared with prior art, increasing constant-current charge time, constant-current phase charging capacityIncrease.
In constant voltage charging phase, constant-voltage charge is carried out using the 4.37V of above-mentioned setting.As shown in figure 5, in constant-voltage charge rankSection, charging current is constantly reduced.In the prior art, filled when charging current drops to 150mA (charge cutoff electric current) i.e. stoppingElectricity, and in the present embodiment, drop to 200mA in charging current and stop charging.
It should be understood that the cut-off current increase 50mA reductions for stopping that charging are in the charging interval in low current stage, thisThe charging capacity also very little of section time, so as to reduce the time of whole charging process, improves charge efficiency.
Prior art is different from, the charging method of the battery of present embodiment includes：Battery is carried out using setting electric currentConstant-current charge, until the charging voltage of battery reaches preset voltage value；Wherein, upper voltage limit of the preset voltage value more than batteryValue；Constant-voltage charge is carried out to battery using preset voltage value, until the charging current of battery reaches pre-set current value, then stops fillingElectricity；Wherein, pre-set current value is more than charge cutoff electric current.Through the above way, on the one hand can be by heightening constant-current charge rankThe upper voltage limit of section increases time of constant-current charging phase, increases charge volume；On the other hand can be by heightening constant-voltage chargeThe charge cutoff electric current in stage shortens charging interval of constant voltage charging phase, improves charge efficiency.
Fig. 6 is the structural representation of battery charging equipment first embodiment of the present invention, and the charging equipment can be independentCharger, or electronic equipment.
For example, can be universal charger when battery charging equipment is charge independence device, it be provided with battery receivingGroove, battery is put into, and after the both positive and negative polarity of battery is contacted with shell fragment, is started to charge up after charger switches on power；Filled in batteryWhen electric equipment is electronic equipment, such as mobile phone, flat board etc., battery are, in the inside of electronic equipment, to connect outer by power interfacePortion's power supply is realized charging.
Specifically, the charging equipment includes：
First positive terminal 61 and the second negative terminal 62, positive pole and negative pole for connecting external power source respectively；
Second positive terminal 63 and the second negative terminal 64, positive pole and negative pole for connecting battery respectively；
Controller 65, is used for：
Constant-current charge is carried out to battery using setting electric current, until the charging voltage of battery reaches preset voltage value；Wherein,Upper voltage limit value of the preset voltage value more than battery；Constant-voltage charge is carried out to battery using preset voltage value, until filling for batteryElectric current reaches pre-set current value, wherein, pre-set current value is more than or equal to charge cutoff electric current.
Refering to Fig. 7, Fig. 7 is the structural representation of battery charging equipment second embodiment of the present invention, the charging equipment bagInclude：
First positive terminal 71 and the second negative terminal 72, positive pole and negative pole for connecting external power source respectively；
Second positive terminal 73 and the second negative terminal 74, positive pole and negative pole for connecting battery respectively；
Controller 75, is used for：
Constant-current charge is carried out to battery using setting electric current, until the charging voltage of battery reaches preset voltage value；Wherein,Upper voltage limit value of the preset voltage value more than or equal to battery；Constant-voltage charge, Zhi Dao electricity are carried out to battery using preset voltage valueThe charging current in pond reaches pre-set current value, then stop charging；Wherein, pre-set current value is more than charge cutoff electric current.
It is worth noting that, controller therein can be the charging chip on mainboard, for control the electric current that charges andVoltage, or regulation charging upper limit voltage and charge cutoff electric current.The charging equipment of present embodiment is based on above-mentioned charging methodDevice, its principle and beneficial effect be similar with above-mentioned implementation method, repeats no more here.
Embodiments of the present invention are the foregoing is only, the scope of the claims of the invention is not thereby limited, it is every using thisEquivalent structure or equivalent flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other correlationsTechnical field, is included within the scope of the present invention.