DE3128863A1 - Lithium cell with glass bushing - Google Patents
Lithium cell with glass bushingInfo
- Publication number
- DE3128863A1 DE3128863A1 DE19813128863 DE3128863A DE3128863A1 DE 3128863 A1 DE3128863 A1 DE 3128863A1 DE 19813128863 DE19813128863 DE 19813128863 DE 3128863 A DE3128863 A DE 3128863A DE 3128863 A1 DE3128863 A1 DE 3128863A1
- Authority
- DE
- Germany
- Prior art keywords
- glass
- silicone rubber
- cell
- metal
- lithium cell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000011521 glass Substances 0.000 title claims abstract description 19
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 16
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 13
- 239000004945 silicone rubber Substances 0.000 claims abstract description 11
- 239000011241 protective layer Substances 0.000 claims description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract description 9
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 abstract description 3
- 229920005601 base polymer Polymers 0.000 abstract description 2
- 239000004020 conductor Substances 0.000 abstract description 2
- 238000004132 cross linking Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- -1 siloxanes Chemical class 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000004073 vulcanization Methods 0.000 description 3
- WMWLMWRWZQELOS-UHFFFAOYSA-N bismuth(iii) oxide Chemical compound O=[Bi]O[Bi]=O WMWLMWRWZQELOS-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000006223 plastic coating Substances 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000011253 protective coating Substances 0.000 description 2
- 239000005368 silicate glass Substances 0.000 description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229910013462 LiC104 Inorganic materials 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- 229920004482 WACKER® Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000005388 borosilicate glass Substances 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 150000001722 carbon compounds Chemical class 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 description 1
- 229910001486 lithium perchlorate Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 230000003442 weekly effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/117—Inorganic material
- H01M50/119—Metals
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Primary Cells (AREA)
Abstract
Description
Lithium-Zelle mit Glasdurchführunq. Lithium cell with glass leadthrough.
Die Erfindung betrifft ein galvanisches Element mit einer negativen Lithiumelektrode und einerreduzierbaren positiven Elektrode in einem Metallgehäuse mit einer Glasdurchführung, deren dem Gehäuseinnern zugekehrte Glasoberfläche mit einer Schutzschicht versehen ist.The invention relates to a galvanic element with a negative one Lithium electrode and a reducible positive electrode in a metal housing with a glass feed-through with the glass surface facing the inside of the housing with is provided with a protective layer.
Bei galvanischen Elementen mit Glasdurchführungen liegt eine Glas-Metall-Dichtung vor, die so konstruiert ist, daß die entgegengesetzten Polaritäten des galvanischen Elements aufgrund der Isolierwirkung des Glases voneinander getrennt sind. Gehäuse dieser Bauart werden außer für galvanische Elemente z.B. auch für Kondensatoren, Halbleiterelemente und Schwingquarze verwendet. Speziell für Lithiumzellen ist die Anwendung dieser neuen Dichttechnik deshalb aussichtsreich, weil herkömmliche Zellengehäuse mit umbördelter Kunststoffdichtung es oft an Zuverlässigkeit und ausreichender Lebensdauer fehlen lassen.In the case of galvanic elements with glass feedthroughs, there is a glass-to-metal seal before, which is constructed so that the opposite polarities of the galvanic Elements are separated from each other due to the insulating effect of the glass. casing of this type are used not only for galvanic elements, but also for capacitors, Semiconductor elements and quartz crystals are used. The is specially designed for lithium cells Use of this new sealing technology is promising because it is conventional cell housings with a flanged plastic seal it is often a question of reliability and sufficient service life be missing.
Es hat sich allerdings gezeigt, daß die für Glas-Metall-Einschmelzungen eingesetzten Silikat- oder Borosilikatgläser wohl gegen Natrium stabil sind, aber von Lithium zum Teil reduziert werden. Dabei führt die Reduktion der Hauptoxide in diesen Gläsern zu Metall, Nichtmetall oder niederen Oxiden zwangsläufig zu einer Verschlechterung der Dichtungseigenschaften.It has been shown, however, that for glass-to-metal seals The silicate or borosilicate glasses used are stable to sodium, but can be partially reduced by lithium. The main oxides are reduced in these glasses to metal, non-metal or lower oxides inevitably to one Deterioration in sealing properties.
Aus der DE-OS.2 904 396 sind Vorschläge bekannt, die dem Gehäuseinnern ausgesetzte Oberfläche der Glasdurchführung durch eine Oxid- oder Kunststoffbeschichtung zu schützen und damit einen Angriff durch Lithium zu verhindern. Als Kunststoffbeschichtungen sind insbesondere solche aus polymeren Fluorkohlenwasser- stoffen erwähnt, die auf Glas gewöhnlich nicht gut haften. Darüber hinaus wird in der DE-PS 2 503 234 über Erfahrungen mit fluorierten Kohlenwasserstoffen als positives Elektrodenmaterial in einer Lithiumzelle berichtet, die für eine unerwünschte, die Zellenspannung herabsetzende Wechselwirkung zwischen Lithium und den fluorhaltigen Kohlestoffverbindungen sprechen.From DE-OS.2 904 396 proposals are known that the housing interior exposed surface of the glass duct through an oxide or plastic coating to protect and thus prevent an attack by lithium. As plastic coatings are in particular those made from polymeric fluorocarbon fabrics mentioned, which usually do not adhere well to glass. In addition, DE-PS 2,503,234 about experience with fluorinated hydrocarbons as positive electrode material reported in a lithium cell for an undesirable, the cell voltage lowering Talk about interaction between lithium and the fluorine-containing carbon compounds.
Der Erfindung liegt deshalb die Aufgabe zugrunde, für den innenseitigen Schutzüberzug von Glasdurchführungen für Lithiumzellen ein Material anzugeben, welches sowohl an Glas wie auch an Metall eine ausreichende Haftfthigkeit besitzt und vor allem mit Lithium kompatibel ist.The invention is therefore based on the object for the inside Protective coating of glass feedthroughs for lithium cells to indicate a material which has sufficient adhesiveness to both glass and metal everything is compatible with lithium.
Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Schutzschicht aus einem Siliconkautschuk besteht.The object is achieved according to the invention in that the protective layer consists of a silicone rubber.
Bei dieser Stoffklasse handelt es sich um solche Verbindungen aus der umfangreichen Gruppe der Silicone, die aufgrund ihrer elastischen Eigenschaften als Dichtungsmassen in der Technik weit verbreitet sind und allgemein als Siliconkautschuke bezeichnet werden.This class of substances consists of such compounds the extensive group of silicones, due to their elastic properties are widely used as sealing compounds in the art and generally as silicone rubbers are designated.
Einem Siliconkautschuk liegen kettenpolymere Siloxane zugrunde, die fließfähig oder weichpastös sind und mittels zur Vernetzung geeigneter Gruppen R an feuchter Luft zu einem gummiartigen, elastischen Produkt reagieren.A silicone rubber is based on chain polymer siloxanes which are flowable or soft pasty and by means of groups R react in humid air to form a rubber-like, elastic product.
Bei dem als Vulkanisation bezeichneten Vernetzungsvorgang entsteht der höhermolekulare Siliconkautschuk, indem kettenförmige Moleküle der ebenerwähnten Art zu zwei- oder dreidimensionalen Netzwerken verknüpft sind. Das erfindungsgemäße Beschichtungsmaterial ist somit charakterisiert durch die allgemeine Struktur Bei normalen Temperaturen ist die Vulkanisation in erster Linie von der Luftfeuchtigkeit abhängig.In the cross-linking process known as vulcanization, the higher molecular weight silicone rubber is created by linking chain-like molecules of the type just mentioned to form two- or three-dimensional networks. The coating material according to the invention is thus characterized by the general structure At normal temperatures, vulcanization is primarily dependent on the air humidity.
Zum Beschichten der Glas-Metall-Dichtung ist es zweckmäßig, das Siloxan (Grundpolymer) in einem Lösungsmittel wie Toluol, Benzin oder Trichloräthylen aufzulösen, da sich die weniger viskose Lösung der Topographie im Auftragsbereich, insbesondere zwischen dem Glas-Metall-Obergang, leichter anpaßt als das unverdünnte Produkt.To coat the glass-metal seal, it is useful to use the siloxane (Base polymer) to dissolve in a solvent such as toluene, gasoline or trichlorethylene, because the less viscous solution of the topography in the application area, in particular between the glass-metal transition, adapts more easily than the undiluted product.
Handelsübliche und erfindungsgemäß brauchbare Siloxane sind z.B.Commercially available siloxanes which can be used according to the invention are e.g.
Elastosil A 07 (Wacker Chemie GmbH) oder Silicone rubber YE 5505 (Toshiba Silicone Co. Ltd.).Elastosil A 07 (Wacker Chemie GmbH) or Silicone rubber YE 5505 (Toshiba Silicone Co. Ltd.).
Gegenüber Naturkautschuk haben die erfindungsgemäß in Betracht kommenden Silikonkautschuke allgemein den Vorteil, daß sie gegen Hitze und chemische Reagenzien beständiger sind und auch bei sehr niedriger Temperatur elastisch bleiben.Compared to natural rubber, those that come into consideration according to the invention have Silicone rubbers generally have the advantage that they are resistant to heat and chemical reagents are more stable and remain elastic even at very low temperatures.
Die Figur zeigt eine Li-Knopfzelle mit einer erfindungsgemäß geschützten Glasdurchführung.The figure shows a lithium button cell with a protected according to the invention Glass duct.
Die Gehäuse-Halbteile 2 und 3 der Zelle 1 sind durch Laser- oder Widerstandsschweißung hermetisch verschlossen. Im Deckelteil 3 befindet sich die Glasdurchführung, bestehend aus einem Silikatglasring 4, in den ein Metallstift 5 zentrisch eingeschmolzen ist.The housing half-parts 2 and 3 of the cell 1 are laser or resistance welding hermetically sealed. In the cover part 3 is the glass duct, consisting of a silicate glass ring 4 into which a metal pin 5 is fused centrally is.
Der Metallstift kontaktiert über einen flächigen Ableiter 6 aus einem Stahlgewebenetz die Lithiumelektrode 7 und stellt somit den negativen Pol der Zelle dar. Gegen das Innere der Zelle ist die Glasdurchführung, insbesondere der Glas-Metall-Obergang entlang der Dichtungszone 8, durch die Siliconkautschuk-Schicht 9 geschutzt und zusätzlich durch die Innenisolierung 10 des Deckels 3 abgedeckt. Ein mit Elektrolyt getränktes Separatorvlies 11 aus Polypropylen und die in das Becherteil 2 eingepreßte positive Elektrodentablette 12 aus beispielsweise Bi2O3 oder MnO2 vervollständigen die Zelle.The metal pin makes contact via a flat conductor 6 from one Steel mesh the lithium electrode 7 and thus represents the negative pole of the cell The glass leadthrough, in particular the glass-metal transition, faces the inside of the cell along the sealing zone 8, protected by the silicone rubber layer 9 and additionally covered by the inner insulation 10 of the cover 3. One with electrolyte impregnated separator fleece 11 made of polypropylene and pressed into the cup part 2 Complete positive electrode tablet 12 made of, for example, Bi2O3 or MnO2 the cell.
Der erfindungsgemäße Vorzug des Siliconkautschuks geht aus nachstehendem Vergleichstest hervor.The preference of the silicone rubber according to the invention is based on the following Comparison test.
Versuch 1: Zellen mit Glas-Metall-Dichtung ohne Schutzüberzug.Experiment 1: cells with a glass-to-metal seal without a protective coating.
Zellabmessungen: ~ 11,6 x 3,6 mm System: Bia03/Li Elektrolyt: 70 Vol% Propylencarbonat ) 1 m LiC10 30 Vol% Dimethoxiäthan ) Offene Spannung: 2,2 V Zellen dieser Ausführung ergeben im Heliumlecktest Leckraten von 10-9 ######## und können somit als vakuumdicht bezeichnet werden.Cell dimensions: ~ 11.6 x 3.6 mm System: Bia03 / Li electrolyte: 70% by volume Propylene carbonate) 1 m LiC10 30 vol% dimethoxyethane) Open voltage: 2.2 V cells this version results in leak rates of 10-9 ######## in the helium leak test and can can thus be referred to as vacuum-tight.
Zur Untersuchung der Langzeiteigenschaften wurden die Zellen bei 600C gelagert und wöchentlich unter dem Stereomikroskop (10x) auf Dichtigkeit überprüft. Undichtigkeiten erkennt man in der Regel durch die Bildung von LiC104-Kristallen. Nach 4 Wochen Lagerzeit waren noch keinerlei Undichtigkeiten zu beobachten. Nach 5 Wochen sind vereinzelt LiClO4-Kristalle am negativen Pol sichtbar. Nach 6 Wochen waren sämtliche Zellen des Prüfloses undicht.To examine the long-term properties, the cells were at 600C stored and checked weekly for leaks under the stereo microscope (10x). Leaks can usually be recognized by the formation of LiC104 crystals. After 4 weeks of storage, no leaks were observed. To For 5 weeks, isolated LiClO4 crystals are visible at the negative pole. After 6 weeks all cells of the test lot were leaking.
Versuch 2: Gleich Zellen wie bei Versuch 1, jedoch mit beschichteter Glas-Metall-Dichtung gemäß der Erfindung.Experiment 2: Same cells as in experiment 1, but with a coated one Glass-to-metal seal according to the invention.
Vor dem Zusammenbau wird die dem Zelleninneren zugewandte Glasoberfläche sowie die Obergangszone Glas-Metall mit einem dichten Oberzug aus Siliconkautschuk beschichtet. Die Beschichtung erfolgt in der Weise, daß mittels einer pneumatisch gesteuerten Spritze eine 50%ige Siloxan-Lösung in Toluol auf die Glas-Metall-Dichtung aufgegeben wird und daß die viskose Schicht durch 20-stündiges Lagern des behandelten Gehäuseteils in der Umgebungsatmosphäre der Vulkanisation überlassen wird.Before assembly, the glass surface facing the inside of the cell is made as well as the transition zone between glass and metal with a dense cover made of silicone rubber coated. The coating takes place in such a way that by means of a pneumatic controlled syringe a 50% solution of siloxane in toluene on the glass-metal-seal is abandoned and that the viscous layer by storing the treated for 20 hours Housing part is left in the ambient atmosphere of the vulcanization.
Im übrigen unterscheiden sich diese Zellen nicht von denen des Versuch 1. Jedoch waren an den erfindungsgemäß mit Siliconkautschuk behandelten Zellen nach 8 Wochen Lagerung bei 600C keinerlei Leckagen feststellbar.Otherwise these cells do not differ from those of the experiment 1. However, the cells treated according to the invention with silicone rubber remained behind 8 weeks of storage at 600C, no leaks were detected.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19813128863 DE3128863A1 (en) | 1981-07-22 | 1981-07-22 | Lithium cell with glass bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19813128863 DE3128863A1 (en) | 1981-07-22 | 1981-07-22 | Lithium cell with glass bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE3128863A1 true DE3128863A1 (en) | 1983-02-10 |
Family
ID=6137418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19813128863 Withdrawn DE3128863A1 (en) | 1981-07-22 | 1981-07-22 | Lithium cell with glass bushing |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE3128863A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7129002B2 (en) * | 2002-05-02 | 2006-10-31 | Varta Microbattery Gmbh | Method for producing a rechargeable electrochemical element |
| WO2015197589A1 (en) * | 2014-06-23 | 2015-12-30 | Schott Ag | Electric storage system with a discrete disk-shaped element, discrete disk-shaped element, method for producing same, and use thereof |
| WO2015197600A3 (en) * | 2014-06-23 | 2016-03-17 | Schott Ag | Electrical storage system containing a disc-shaped discrete element, discrete element, and method for producing and using the same |
| WO2016087311A3 (en) * | 2014-12-01 | 2016-07-28 | Schott Ag | Electrical storage system comprising a sheet-type discrete element, discrete sheet-type element, method for the production thereof and use thereof |
-
1981
- 1981-07-22 DE DE19813128863 patent/DE3128863A1/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7129002B2 (en) * | 2002-05-02 | 2006-10-31 | Varta Microbattery Gmbh | Method for producing a rechargeable electrochemical element |
| WO2015197589A1 (en) * | 2014-06-23 | 2015-12-30 | Schott Ag | Electric storage system with a discrete disk-shaped element, discrete disk-shaped element, method for producing same, and use thereof |
| WO2015197600A3 (en) * | 2014-06-23 | 2016-03-17 | Schott Ag | Electrical storage system containing a disc-shaped discrete element, discrete element, and method for producing and using the same |
| CN106663750A (en) * | 2014-06-23 | 2017-05-10 | 肖特股份有限公司 | Electric storage system with a discrete disk-shaped element, discrete disk-shaped element, method for producing same, and use thereof |
| US10566584B2 (en) | 2014-06-23 | 2020-02-18 | Schott Ag | Electrical storage system with a sheet-like discrete element, sheet-like discrete element, method for producing same, and use thereof |
| WO2016087311A3 (en) * | 2014-12-01 | 2016-07-28 | Schott Ag | Electrical storage system comprising a sheet-type discrete element, discrete sheet-type element, method for the production thereof and use thereof |
| US10673025B2 (en) | 2014-12-01 | 2020-06-02 | Schott Ag | Electrical storage system comprising a sheet-type discrete element, discrete sheet-type element, method for the production thereof, and use thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8141 | Disposal/no request for examination |