DieErfindung bezieht sich auf eine Reservebatterie aus Anode und Kathodeals Elektroden und einem Freiraum zur Aufnahme eines Elektrolyten gemäß dem Oberbegriffdes Patentanspruches 1. Daneben bezieht sich die Erfindung auf einVerfahren zum Herstellen einer solchen Reservebatterie.TheThe invention relates to a reserve battery of anode and cathodeas electrodes and a space for receiving an electrolyte according to the preambleof claim 1. In addition, the invention relates to aMethod for producing such a reserve battery.
EineReservebatterie ist eine Batterie, die typischerweise nur einmalnutzbar ist und die sich selbst durch Benetzung mit einem Elektrolytenaktiviert. Füreine Anwendung im medizinischen Bereich kann der Elektrolyt beispielsweiseKörperflüssigkeit sein.ABackup battery is a battery that is typically only onceis useable and that itself by wetting with an electrolyteactivated. Foran application in the medical field, for example, the electrolyteBe body fluid.
Reservebatteriensind bereits bekannt. Sie sind analog zu bekannten Primärbatterienaus Anode, Elektrolytraum und Kathode aufgebaut. Anders als beisolchen Primärbatterienist allerdings bei Reservebatterien der Raum zwischen den Elektroden nichtmit Elektrolyt gefüllt.Erst bei Aktivierung wird der Zwischenraum mit ionisch leitfähigem Elektrolytengefüllt.extra batteriesare already known. They are analogous to known primary batteriescomposed of anode, electrolyte space and cathode. Unlikesuch primary batteriesHowever, with reserve batteries the space between the electrodes is notfilled with electrolyte.Only when activated is the gap with ionically conductive electrolytefilled.
Reservebatterienfinden unter anderem Anwendung in Signallampen, beispielsweise Rettungswestenoder dergleichen, oder beispielsweise auch als Torpedoantrieb. Inbeiden Fällenwerden sie durch eindringendes Seewasser aktiviert. Besonderer Vorteilvon Reservebatterien ist die nahezu unbegrenzte Lagerfähigkeit,da durch den fehlenden Elektrolyten eine Selbstentladung im üblichenSinne nicht möglichist.reserve batteriesfind application in signal lamps, such as lifejacketsor the like, or for example as a torpedo drive. Inboth casesthey are activated by penetrating seawater. Special advantageof backup batteries is the almost unlimited shelf life,because by the missing electrolyte a self-discharge in the usualSenses not possibleis.
Diebisher bekannten Systeme von Reservebatterien sind aus massivenElektroden aufgebaut. Dadurch sind sie nicht geeignet für einenflachen Aufbau und solche Anwendungen, für die ein miniaturisierterAufbau notwendig ist.ThePreviously known systems of backup batteries are made of solidElectrodes assembled. As a result, they are not suitable for oneflat design and such applications, for which a miniaturizedConstruction is necessary.
VomStand der Technik ist es zwar bereits bekannt, Anordnungen in Dünnschichttechnikauszubilden. Dies gilt beispiels weise für ein pyroelektrisches Dünnschichtsensorelementgemäß der
Ausgehendvon obigem Stand der Technik ist es Aufgabe der Erfindung, eineReservebatterie zu schaffen, die kompakt aufgebaut und insbesondere auchpreiswert ist.outgoingFrom the above prior art, it is an object of the invention, aReserve battery to create, which is compact and, in particular, alsois inexpensive.
DieAufgabe ist erfindungsgemäß durchdie kennzeichnenden Merkmale des Patentanspruches 1 gelöst. Herstellungsverfahrenfür einesolche Reservebatterie sind in den nebengeordneten Ansprüchen 9 bis11, 13 und 14 angegeben. Weiterbildungen der erfindungsgemäßen Reservebatterieund des zugehörigenHerstellungsverfahrens sind Gegenstand der Unteransprüche.TheTask is inventively bythe characterizing features of claim 1 solved. production methodfor oneSuch reserve battery are in the independent claims 9 to11, 13 and 14 indicated. Further developments of the reserve battery according to the inventionand the associatedManufacturing process are the subject of the dependent claims.
Dieerfindungsgemäße Reservebatterieist in Dünnschicht-Planartechnikmit Interdigitalstruktur und einzelnen Elektrodenfingern realisiert.Bei der bestimmungsgemäßen Anwendungschließendie Elektrodenfinger den Elektrolyten ein. Die somit gebildete Reservebatteriekann aufgrund ihres besonders einfachen Aufbaus auch sehr einfachhergestellt werden. Dadurch ist der Aufbau so preiswert, dass er insbesondereauch fürsog. Disposable-Anwendungen, z.B. in der Medizindiagnostik, in Fragekommt.TheInventive backup batteryis in thin-film planar technologyrealized with interdigital structure and individual electrode fingers.When used as intendedshut downthe electrode fingers enter the electrolyte. The thus formed backup batterycan also be very simple due to its very simple structuregetting produced. As a result, the structure is so cheap that he in particularalso forso-called disposable applications, e.g. in medical diagnostics, in questioncomes.
WeitereEinzelheiten und Vorteile der Erfindung ergeben sich aus der nachfolgendenFigurenbeschreibung von Ausführungsbeispielenanhand der Zeichnung in Verbindung mit den Patentansprüchen. Eszeigen jeweils in schematischer SchnittdarstellungFurtherDetails and advantages of the invention will become apparent from the followingDescription of the figures of exemplary embodimentswith reference to the drawing in conjunction with the claims. Iteach show in a schematic sectional view
GleichwirkendeEinheiten haben in den Figuren gleiche Bezugszeichen. Die Figurenwerden nachfolgend teilweise gemeinsam beschrieben.EquivalentUnits have the same reference numerals in the figures. The figuresare described below partially together.
In
In
Ineiner Abwandlung zu
Insgesamtwird in
Ausder Schnittdarstellung der
In
Beiden Anordnungen gemäß den
DieHerstellung von dünnenElektrodenschichten erfolgt vorteilhafterweise nach einem bekanntenSiebdruckverfahren. Möglichist es auch, die Elektroden mit einem Sprühverfahren auf ein Substrataufzubringen. Gegebenenfalls kann dabei auf die Zwischenschichtdes Kollektors verzichtet werden, sofern an die Elektroden direktdie Stromanschlüsse angebrachtwerden.TheProduction of thinElectrode layers are advantageously carried out according to a knownScreen printing process. Possibleit is also, the electrodes with a spray on a substrateapplied. Optionally, it can be applied to the intermediate layerof the collector, provided that the electrodes directlythe power connections attachedbecome.
Derartdünne Schichtenkönnenauch beispielsweise mit einem angepassten Ink-Jet-Drucker erzeugtwerden. Eine andere Möglichkeitfür dieHerstellung der Elektroden sind Druckverfahren, insbesondere dersogenannte Tampondruck oder dergleichen, weiterhin Tauchverfahrenoder auch das sogenannte Schlickergießen.sothin layerscanalso created for example with a customized ink-jet printerbecome. Another possibilityfor theProduction of the electrodes are printing processes, in particular theso-called pad printing or the like, further dipping methodor the so-called Schlickergießen.
Nachdem Prinzip der
Beiden beschriebenen Reservebatterien kann einer der beiden Elektroden,dem Elektrolytraum oder den darin enthaltenen porösen Körper, derden Separator darstellt, ein löslichesSalz zugesetzt werden. Dies kann entweder ein wasserlösliches,elektrisch leitendes Salz sein zur Befüllung mit Wasser oder wässrigenLösungenoder aber auch ein Leitsalz fürorganische Flüssigkeiten.atThe described reserve batteries can be one of the two electrodes,the electrolyte space or the porous body contained therein, therepresents the separator, a solubleSalt are added. This can either be a water-soluble,be electrically conductive salt for filling with water or aqueoussolutionsor also a conductive salt fororganic liquids.
ZurAktivierung anhand der
AlsElektrolyt sind alle Flüssigkeitengeeignet, die zumindest eine geringfügige ionische Leitfähigkeitaufweisen. Bei einer medizinischen Anwendung kann dies eine Körperflüssigkeit,wie Blut, Urin oder Speichel, sein.WhenElectrolyte are all liquidssuitable, the at least a slight ionic conductivityexhibit. In a medical application, this may be a body fluid,like blood, urine or saliva.
DerElektrolyt kann auch direkt die zu analysierende Flüssigkeitsein. Dies ist vorteilhaft fürden Einsatz von sogenannten Disposable-Anwendungen in der Medizintechnik.Für solcheDisposable-Anwendungen ist ein ultradünner Aufbau mit geringem Materialeinsatzund die einfache Fertigung vorteilhaft.Of theElectrolyte can also directly the liquid to be analyzedbe. This is beneficial forthe use of so-called disposable applications in medical technology.For suchDisposable applications is an ultra-thin design with low material usageand the ease of manufacture advantageous.
BeiKontakt mit einer Flüssigkeitaktiviert sich die Batterie und die damit verbundene elektronische Schaltungselbstständig.Die Aktivierung durch die Analyseflüssigkeit wirkt also wie einintelligenter Schalter.When in contact with a liquid, the battery and the electronic circuit connected to it activates automatically. Activation by the analysis fluid thus acts as a smart one Switch.
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DE2003113005DE10313005B4 (en) | 2003-03-24 | 2003-03-24 | Backup battery and method for its manufacture |
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DE2003113005DE10313005B4 (en) | 2003-03-24 | 2003-03-24 | Backup battery and method for its manufacture |
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DE10313005A1 DE10313005A1 (en) | 2004-10-14 |
DE10313005B4true DE10313005B4 (en) | 2007-05-03 |
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DE2003113005Expired - Fee RelatedDE10313005B4 (en) | 2003-03-24 | 2003-03-24 | Backup battery and method for its manufacture |
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