EP2137775A2 - Button cell comprising a coated exterior - Google Patents
Button cell comprising a coated exteriorInfo
- Publication number
- EP2137775A2 EP2137775A2 EP08735083A EP08735083A EP2137775A2 EP 2137775 A2 EP2137775 A2 EP 2137775A2 EP 08735083 A EP08735083 A EP 08735083A EP 08735083 A EP08735083 A EP 08735083A EP 2137775 A2 EP2137775 A2 EP 2137775A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- button cell
- conductive coating
- electrically non
- cell
- cell according
- 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- Withdrawn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
- 238000000576 coating method Methods 0.000 claims abstract description 91
- 239000011248 coating agent Substances 0.000 claims abstract description 78
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229910052751 metal Inorganic materials 0.000 claims abstract description 33
- 239000002184 metal Substances 0.000 claims abstract description 33
- 239000012799 electrically-conductive coating Substances 0.000 claims abstract description 16
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 15
- 150000003623 transition metal compounds Chemical class 0.000 claims abstract description 5
- 150000004770 chalcogenides Chemical class 0.000 claims abstract description 4
- 150000002736 metal compounds Chemical class 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 13
- 229920000642 polymer Polymers 0.000 claims description 13
- 238000005260 corrosion Methods 0.000 claims description 10
- 230000007797 corrosion Effects 0.000 claims description 10
- 238000005240 physical vapour deposition Methods 0.000 claims description 10
- 229920000052 poly(p-xylylene) Polymers 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 8
- 229910044991 metal oxide Inorganic materials 0.000 claims description 8
- 150000004706 metal oxides Chemical class 0.000 claims description 8
- 230000003647 oxidation Effects 0.000 claims description 6
- 238000007254 oxidation reaction Methods 0.000 claims description 6
- 238000002788 crimping Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000002401 inhibitory effect Effects 0.000 claims description 3
- 238000001755 magnetron sputter deposition Methods 0.000 claims description 3
- 229910052987 metal hydride Inorganic materials 0.000 claims description 3
- 150000004767 nitrides Chemical class 0.000 claims description 3
- 239000000049 pigment Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 2
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 238000009830 intercalation Methods 0.000 claims description 2
- 229910052741 iridium Inorganic materials 0.000 claims description 2
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052744 lithium Inorganic materials 0.000 claims description 2
- 150000001247 metal acetylides Chemical class 0.000 claims description 2
- 229910052762 osmium Inorganic materials 0.000 claims description 2
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 claims description 2
- 229910052763 palladium Inorganic materials 0.000 claims description 2
- 229910052697 platinum Inorganic materials 0.000 claims description 2
- 229910052702 rhenium Inorganic materials 0.000 claims description 2
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 claims description 2
- 229910052703 rhodium Inorganic materials 0.000 claims description 2
- 239000010948 rhodium Substances 0.000 claims description 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 2
- 229910052707 ruthenium Inorganic materials 0.000 claims description 2
- 239000003112 inhibitor Substances 0.000 claims 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 abstract description 5
- 239000000919 ceramic Substances 0.000 abstract description 4
- 239000011521 glass Substances 0.000 abstract description 3
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 24
- 239000010408 film Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 239000004922 lacquer Substances 0.000 description 7
- 239000002243 precursor Substances 0.000 description 7
- 239000000758 substrate Substances 0.000 description 7
- 150000002739 metals Chemical class 0.000 description 6
- 239000003792 electrolyte Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- -1 indium tin oxide) Chemical class 0.000 description 5
- 229910052719 titanium Inorganic materials 0.000 description 5
- 239000010936 titanium Substances 0.000 description 5
- 150000004703 alkoxides Chemical class 0.000 description 4
- 229910052758 niobium Inorganic materials 0.000 description 4
- 239000010955 niobium Substances 0.000 description 4
- 229920001296 polysiloxane Polymers 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000002048 anodisation reaction Methods 0.000 description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 150000004681 metal hydrides Chemical class 0.000 description 2
- 229910000652 nickel hydride Inorganic materials 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000012811 non-conductive material Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920006254 polymer film Polymers 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 229910000052 cadmium hydride Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000006253 efflorescence Methods 0.000 description 1
- 210000000416 exudates and transudate Anatomy 0.000 description 1
- 125000003709 fluoroalkyl group Chemical group 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000001007 puffing effect Effects 0.000 description 1
- 206010037844 rash Diseases 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 150000003346 selenoethers Chemical class 0.000 description 1
- 229920006300 shrink film Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 239000002023 wood Substances 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
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/109—Primary casings; Jackets or wrappings characterised by their shape or physical structure of button or coin shape
-
- 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
-
- 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
- H01M50/122—Composite material consisting of a mixture of organic and inorganic materials
-
- 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
- H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
- H01M50/126—Primary casings; Jackets or wrappings characterised by the material having a layered structure comprising three or more layers
-
- 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
- H01M50/131—Primary casings; Jackets or wrappings characterised by physical properties, e.g. gas permeability, size or heat resistance
- H01M50/133—Thickness
-
- 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
- H01M50/14—Primary casings; Jackets or wrappings for protecting against damage caused by external factors
- H01M50/145—Primary casings; Jackets or wrappings for protecting against damage caused by external factors for protecting against corrosion
-
- 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
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49108—Electric battery cell making
- Y10T29/49115—Electric battery cell making including coating or impregnating
Definitions
- the present invention relates to a coin cell comprising a housing comprising a cell cup, a cell lid and a gasket which isolate the cell cup and the cell lid from each other, a method suitable for producing such a coin cell and a new use of electrically non-conductive coating materials. materials for button cells.
- Button cells usually have a cell cup and a cell lid.
- the cell cup can be produced, for example, from nickel-plated deep-drawn sheet metal. Usually the cell cup is positive and the cell lid is negatively poled.
- Such button cells may contain a variety of electrochemical systems, such as nickel / cadmium, nickel / metal hydride, zinc / air (MnO 2 ) or primary and secondary lithium systems.
- the liquid-tight closure of such cells is usually carried out by crimping the edge of the cell cup over the cell lid.
- a plastic ring arranged between the cell cup and the cell lid usually serves as a seal and isolates the cell cup from the cell lid.
- button cells are known for example from DE 31 13 309.
- the above-mentioned nickel-plated deep-drawn sheet is often the housing material of choice because it is cheap and nickel provides good corrosion protection.
- nickel does not form a thick oxide layer on its surface under ordinary conditions. Accordingly, a nickel plating usually ensures a permanently good electrical contact with the current collection units of a consumer.
- the production of cell cups and cell covers made of nickel-plated deep-drawn sheet is preferably carried out by electroplating a nickel layer on correspondingly shaped metal parts.
- cell cups and cell covers can also be produced directly as stamped drawing parts from nickel-plated deep-drawn sheet metal.
- the nickel layer usually has a certain porosity. This is usually not a problem, but under extreme conditions (eg at high temperatures and high humidity, as they occur, for example, in tropical areas) rust puffing can occur at the pores, which can lead to contamination of the consumer and to the uselessness of the button cell ,
- buttons in particular the area of the curl is very critical with regard to corrosion attacks, because in this area the distance between negatively and positively polarized cell parts is very small and in the curling existing nickel protective layers can be damaged or locally torn open.
- the present invention has for its object to find a solution to the above problems, in particular to provide a button cell that can be safely and reliably used in hearing aids without polluting them or even become unusable.
- buttons cell with the features of claim 1, the use with the features of claim 14 and the method with the features of claim 16.
- Preferred Embodiments of the button cell according to the invention and the use according to the invention are shown in the dependent claims 2 to 13 and 15.
- Preferred embodiments of the method according to the invention can be found in the dependent claims 17 to 19. The wording of all claims is hereby incorporated by reference into the content of this description.
- a button cell according to the invention has a housing which comprises a cell cup, a cell lid and a seal. The gasket isolates the cell cup against the cell lid.
- the housing of a button cell according to the invention has an electrically conductive (or conductive) coating, which comprises at least one metal that is nobler than nickel, and / or at least one conductive connection.
- the electrically conductive coating consists of the at least one metal, which is more noble than nickel, and / or of the at least one conductive compound.
- the at least one metal is preferably selected from the group comprising ruthenium, copper, silver, gold, rhodium, palladium, rhenium, osmium, iridium and platinum. In the electrochemical series of voltages, it is preferably above nickel, that is to say it has a more positive normal potential.
- the at least one conductive connection is, in particular, a metal or transition metal compound.
- the at least one conductive compound is a chalcogenide (such as indium tin oxide), a nitride (such as titanium nitride), or a carbide.
- chalcogenides oxides, sulfides and selenides are particularly preferred.
- a button cell according to the invention may have an electrically non-conductive coating on the exterior of the housing. Both the electric conductive coating as well as the electrically non-conductive coating can effectively protect the button cell according to the invention against corrosive attacks.
- the electrically non-conductive coating preferably consists at least partially of at least one organic component, in particular of at least one organic component based on polymer.
- the electrically non-conductive coating is a lacquer.
- paints based on alkyd, epoxy and acrylate resins are also noteworthy.
- nitro lacquers, polyester lacquers and polyurethane lacquers are also noteworthy.
- the electrically non-conductive coating may also be a film, preferably a very thin film.
- films with a thickness between 0.01 mm and 0.3 mm.
- the film is preferably a thermoplastic film, in particular a shrink film.
- the film is preferably made of a polyolefin or of a polyamide.
- an adhesive layer may be present between the film and the outside of the housing.
- the electrically non-conductive coating comprises at least one inorganic component, in particular based on glass and / or ceramic and / or a non-conductive metal or transition metal compound.
- the electrically non-conductive coating can comprise or consist of an organic-inorganic hybrid component, in particular based on an Ormocers®.
- an Ormocer® is an inorganic-organic hybrid polymer suitable for influencing the surface properties of substrates made of polymers, ceramics, glass, metal, paper and wood.
- an Ormocer® is very well suited as a barrier layer for gases, solvents and ions. Hydrophobic properties can also be adjusted in a targeted manner.
- an Ormocers® is usually carried out by the sol-gel method.
- an inorganic network is built up by controlled hydrolysis and condensation of organically modified Si alkoxides. Cocondensation with other metal alkoxides (e.g., Ti, Zr and Al alkoxides) is also possible.
- the polymerizable groups fixed on the inorganic network are crosslinked with one another inter alia thermally and / or UV-initiated.
- organically modified Si alkoxides can be used which do not undergo organic polymerization reactions and thus contribute to an organic functionalization of the inorganic network.
- This two-stage process builds up an inorganic / organic copolymer. This can be applied to a substrate by means of a customary coating method (dipping or spraying method, knife application, spin-on method, roller application or micro-spray application), where it is cured in a subsequent step.
- the electrically non-conductive coating may comprise or consist of an organic-inorganic hybrid component, in particular based on a silicone compound.
- Silicones are heat-resistant and hydrophobic and therefore very well suited according to the invention as a coating.
- the silicone compound is a silicone resin.
- the silicone compound is a fluorosilicone.
- the methyl are replaced by fluoroalkyl groups. They have a particularly high oxidation and u. Chemical resistance on.
- the electrically non-conductive coating comprises or consists of parylene.
- parylene is an inert, hydrophobic, optically transparent, polymeric coating material with a wide range of industrial applications. Parylene is produced by chemical vapor deposition. The starting material is di-para-xylylene or a halogenated derivative thereof. This is vaporized and passed through a high temperature zone. This forms a highly reactive monomer which reacts on the surface of the substrate to be coated usually immediately to a chain-like polymer. For curing, it is only necessary to keep the substrate to be coated at a not too high temperature, for example room temperature.
- parylene is applied to a substrate in a vacuum by condensation from the gas phase as a pore-free and transparent polymer film. Coating thicknesses from 0.1 ⁇ m to 50 ⁇ m can be applied in one operation.
- the electrically non-conductive coating comprises a valve metal oxide (English: valve metal oxide) or consists thereof.
- Valve metals are known to be metals or alloys whose oxides have dielectric properties. Examples are Al, Ti, Nb and Ta oxides.
- Valve metal oxide layers can in principle be used as rectifiers, ie they allow current to flow only in one direction and have a highly insulating effect in the other direction, even with very small layer thicknesses below 100 nm. This property is based on the term "valve metal” are valve metal oxide layers up to a certain thickness almost transparent, so that they as top layers on a glossy zenden, well-reflecting underground can act as interference layers.
- PVD physical vapor deposition
- magnetron sputtering is particularly predestined for layer production.
- the surface roughness is not adversely affected by the process at optimum coating parameters, and the layer porosity is sufficiently low for a subsequent anodic oxidation.
- the dominant process for producing valve metal oxide layers is the anodic oxidation of valve metal coatings.
- the layer thickness can be controlled in an excellent manner by the anodization voltage, provided that the valve metal layer is closed and the electrolyte composition and electrical or thermal parameters are optimally selected during the anodization.
- Coloring of plastic materials made of valve metals, eg titanium rods or wire, is state of the art.
- the housing of a button cell according to the invention is preferably formed substantially cylindrical.
- Cell cups and cell caps of a button cell according to the invention preferably have a substantially flat bottom area. Preferably, these form the top and bottom of the button cell.
- the current collection units of a consumer are applied in these areas.
- the housing of a button cell according to the invention has a preferably jacket-like portion, which is in particular formed between the substantially flat bottom regions. This is preferably formed by the outer wall of the cell cup.
- the transition from the coat-like portion to the flat bottom regions may be formed in particular in the form of an edge and / or rounded. This is shown clearly in FIG. 1.
- For substantially flat bottom of the cell cover towards the transition is preferably rounded.
- there is a crimping zone in which the edge of the cell cup is bent over and bears tightly against the cell lid, preferably separated from it only by the seal. Between the cell cup and the cell lid there is a generally very thin gap in this area, in which the seal is arranged.
- a button cell according to the invention has in preferred embodiments a diameter of ⁇ 25 mm, in particular ⁇ 15 mm.
- the height of a button cell according to the invention is preferably less than 15 mm, in particular less than 10 mm.
- the outside of the housing has one or more uncoated portions.
- the housing is free of the electrically conductive and / or the electrically non-conductive coating.
- the button cell according to the invention has a cell cover with a substantially flat bottom and / or or a cell lid having a substantially flat bottom, wherein the substantially planar region of the lid bottom and / or the cup bottom is at least partially uncoated.
- This is particularly preferred with regard to the electrically nonconductive coating, since this would prevent a decrease in current in the region of the lid bottom and / or the cup bottom.
- the outside of a button cell according to the invention at the same time has an electrically conductive and an electrically non-conductive coating, wherein the electrically conductive coating can cover the outside substantially completely, while the electrically non-conductive coating is preferably applied only in partial areas, as already mentioned, in particular not in the area of the lid bottom and / or the cup bottom.
- the electrically conductive coating should not be able to make electrical contact between the oppositely polarized cell cups and cell caps.
- a button cell according to the invention has a jacket-like housing section, which is at least partially provided with the electrically conductive coating and / or with the electrically non-conductive coating (2).
- the coating is applied there in the form of at least one circumferential strip.
- this has a crimping region, which is covered by the electrically non-conductive coating.
- the electrically non-conductive coating preferably completely covers the region of the cup rim. It may be particularly preferred that the coating covers the above-mentioned gap between cell lid and cell cup in this area, optionally partially filling.
- an optional nickel layer can be torn open. The torn-open area then offers a particularly good attack surface for corrosive media. By applying the electrically non-conductive coating in this area can be prevented or counteracted.
- an applied in the flanging region electrically non-conductive coating can also have a sealing effect.
- both the electrically conductive coating and the electrically non-conductive coating be substantially impermeable to moisture, in particular to atmospheric moisture.
- the coatings are substantially free of pores, so that in particular corrosive substances can not penetrate the coating.
- Some coatings suitable according to the invention can be deposited particularly readily by electroplating or from the gas phase.
- CVD chemical vapor deposition
- the above-mentioned coatings are of the same type Layers of ceramic constituents, for example aluminum oxide, can be deposited by means of a CVD process, in particular coatings of a transition metal compound, preferably of a transition metal nitride, in particular of titanium nitride, can be deposited very well by a CVD process become.
- both the CVD coatings and the PVD coatings may also be multilayer coatings, ie multi-layer coatings.
- the thickness of the electrically conductive coating is preferably between 50 nm and 20 ⁇ m, in particular between 100 nm and 10 ⁇ m.
- the electrically non-conductive coating preferably has a thickness of between 1 ⁇ m and 200 ⁇ m, in particular between 1 ⁇ m and 100 ⁇ m, particularly preferably between 5 ⁇ m and 15 ⁇ m.
- the latter has an electrically conductive and / or an electrically non-conductive coating which contains at least one dye and / or at least one pigment.
- a button cell according to the invention is provided, in particular in the jacket area, with a lacquer, in particular a clear lacquer, which contains at least one color pigment.
- the cell lid and / or the cell cup of a button cell according to the invention preferably consist of at least one metal and / or at least one metal alloy.
- Suitable metallic materials are known to the person skilled in the art.
- Cell beakers and / or cell covers made of trimetal are also particularly suitable.
- cell housings made of sheet steel with an outer layer of nickel and an inner layer of copper are particularly protected against the electrochemical stresses occurring in a galvanic element and at the same time ensure a good support for the coating provided according to the invention on the outside.
- the seal of a coin cell according to the invention is a foil seal in particularly preferred embodiments. Suitable film seals are described for example in DE 196 47 593.
- the seal of a button cell according to the invention is an injection-molded seal.
- Injection-molded gaskets for button cells have been known for many years and require no further discussion.
- the gasket is a thin polymer film formed by applying and then curing a polymer precursor.
- polymer precursor means all mono- and multicomponent systems from which compounds with a polymeric structure can be produced.
- the at least one polymer precursor can have both reactive single monomers and precrosslinked monomer components.
- the at least one polymer precursor in liquid form, for example as a lacquer is applied to the at least one housing part, but precipitation from the gas phase is also possible.
- the at least one polymer precursor is a parylene precursor or an ormoc precursor. Suitable Ormocervor- runners are described for example in the above-mentioned DE 100 16 324.
- a button cell according to the invention generally has an anode, a cathode, a separator and an electrolyte.
- a button cell according to the invention can contain electrochemical systems of various kinds. Some of them have already been mentioned at the beginning. If the button cell according to the invention is a primary battery, it particularly preferably has the electrochemical system zinc / MnO 2 . If the coin cell according to the invention is a secondary battery, nickel / metal hydride systems or even systems having a lithium-intercalating electrode are particularly preferred.
- the button cell according to the invention is particularly preferably a button cell for hearing aids, in particular a rechargeable button cell for hearing aids.
- Cell cup and cell lid of a button cell according to the invention preferably have a wall thickness between 0.08 mm and 0.2 mm, in particular between 0.1 mm and 0.15 mm (without coating).
- an alkaline electrolyte is used as the electrolyte in a button cell according to the invention.
- Suitable electrolytes are known to the person skilled in the art.
- buttons cell of the invention has an exceptionally high stability against corrosive attacks.
- Button cells according to the invention can also be used over a long period of time in hearing aids, in particular, without the occurrence of the rust efflorescence mentioned in the introduction.
- buttons cell housings as anticorrosive agents for button cells, in particular as a corrosion-inhibiting layer or for producing such a corrosion-inhibiting coating on the outside of a button cell.
- non-conductive coating materials in particular materials such as valve metals, are particularly preferred for this purpose (which can be oxidized after coating), Ormocere and / or Parylene.
- a method for producing a corrosion-protected head cell, in particular a coin cell according to the invention, of the present invention is also included.
- an electrically conductive coating and / or an electrically non-conductive coating is applied to the outside of the button cell housing of a button cell, in particular to the cell cup and / or the cell lid, before or after assembly thereof.
- the application preferably takes place in the mantle area of the cell cup, ie in the region which also forms the mantle of the assembled button cell.
- At least one electrically non-conductive coating material from the group comprising valve metals, ormocers and / or parylenes is preferably applied.
- a Ventimetalloxid is applied to the outside of the button cell housing.
- at least one Ventimetall in particular from the group with aluminum, tantalum, niobium, manganese, titanium, bismuth, antimony, zinc, cadmium, zirconium, tungsten, tin, iron, silver and silicon.
- the valve metal applied to the outside of the button cell housing is then oxidized, in particular by - -
- the voltage in the anodic oxidation also allows the color of the valve metal oxide coating to be adjusted.
- the valve metal oxide layer is very hard and electrically non-conductive. This has the additional advantage that it also achieves an improvement in the scratch resistance and corrosion protection.
- the application of the at least one Ventimetalls preferably via a PVD method, in particular by magnetron sputtering.
- the button cell 1 shows an embodiment of a button cell 1 according to the invention, the outside of which has an electrically non-conductive coating 2 (the coating 2 being shown only as hatching).
- the button cell 1 is partially shown in cross section.
- the housing of the button cell is essentially cylindrical.
- Cell cup 3 and cell lid 4 of the button cell have a substantially flat bottom area (see cup bottom 5 and lid bottom 6).
- the current collection units of a consumer are applied in these areas.
- the housing has a jacket-like portion, as already mentioned in the general description part.
- the coat-like portion is formed by the outer wall of the cell cup 3. This is substantially completely covered by the electrically non-conductive coating 2.
- the transition from the Sheath-like section to the cup bottom 5 is formed in the form of a slightly rounded edge 7.
- the coat-like section extends to the point from which the edge 8 of the cell cup 3 is curved inwards in order to ensure a close fit on the cell lid 4.
- a seal 9 separates the cell cup 3 from the cell lid 4.
- the anode 10, the cathode 11 and the separator 12 are shown.
- an annular support member is designated.
- the area of the outside, which is provided with the coating 2, is shown hatched in Figure 1 (as already mentioned) only.
- the coating 2 covers the housing shell substantially completely, whereas the cup bottom 5 and the lid bottom 6 are not coated.
- the coating zone 2 is also covered by the coating 2. In this area, the coating covers both the bent edge 8 of the cell cup 3 and the gap between the cell cup 3 and the cell lid 4, and thus also the seal 9.
- a niobium coating was sputtered onto the outside of a cell cup made of nickel-plated deep-drawn sheet metal (intended for button cells of size PR 44). Sputtered was only in the mantle area of the cell cup, his floor remained free. The niobium coating was then anodized to give a green layer of Nb 2 O 5 having a thickness between 200 nm and 300 nm.
- the cell cup provided with the layer of Nb 2 O 5 proved in practice tests to be significantly more corrosion-resistant than comparable uncoated cell cups.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Fuel Cell (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10004131A EP2230704B1 (en) | 2007-04-13 | 2008-04-08 | Button cell with coated outer surface |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007018259A DE102007018259A1 (en) | 2007-04-13 | 2007-04-13 | Button cell with coated outside |
PCT/EP2008/002764 WO2008125246A2 (en) | 2007-04-13 | 2008-04-08 | Button cell comprising a coated exterior |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2137775A2 true EP2137775A2 (en) | 2009-12-30 |
Family
ID=39473997
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10004131A Active EP2230704B1 (en) | 2007-04-13 | 2008-04-08 | Button cell with coated outer surface |
EP08735083A Withdrawn EP2137775A2 (en) | 2007-04-13 | 2008-04-08 | Button cell comprising a coated exterior |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10004131A Active EP2230704B1 (en) | 2007-04-13 | 2008-04-08 | Button cell with coated outer surface |
Country Status (6)
Country | Link |
---|---|
US (1) | US20130143104A1 (en) |
EP (2) | EP2230704B1 (en) |
CN (1) | CN101682004B (en) |
AT (1) | ATE535030T1 (en) |
DE (1) | DE102007018259A1 (en) |
WO (1) | WO2008125246A2 (en) |
Families Citing this family (15)
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DE102008018172A1 (en) * | 2008-04-03 | 2009-10-08 | Varta Microbattery Gmbh | Galvanic cell and process for its preparation |
DE102009049890A1 (en) * | 2009-10-20 | 2011-04-21 | H & T Marsberg Gmbh & Co. Kg | Galvanic element as a device battery |
US10644271B1 (en) * | 2013-01-08 | 2020-05-05 | Rutgers, The State University Of New Jersey | Packaging material for electrochemical cells |
DE102013001371B4 (en) * | 2013-01-28 | 2015-10-22 | Alligator Ventilfabrik Gmbh | Button cell, in particular for a tire pressure sensor, and tire pressure sensor |
ES2691322T3 (en) * | 2013-03-13 | 2018-11-26 | Brigham And Women's Hospital, Inc. | Ingestible batteries safely |
DE102013208913A1 (en) * | 2013-05-14 | 2014-11-20 | Elringklinger Ag | Electrochemical cell and method of making an electrochemical cell |
DE102013209691A1 (en) * | 2013-05-24 | 2014-11-27 | Elringklinger Ag | Electrochemical cell and method of making an electrochemical cell |
JP2018028961A (en) * | 2014-12-24 | 2018-02-22 | パナソニックIpマネジメント株式会社 | Coin cell |
US10700362B2 (en) | 2016-09-15 | 2020-06-30 | Energizer Brands, Llc | Coatings for mitigation of coin cell ingestion |
EP3297053B1 (en) * | 2016-09-19 | 2018-11-07 | VARTA Microbattery GmbH | Gas generator cell with external resistance foil |
EP3742515A1 (en) * | 2019-05-23 | 2020-11-25 | VARTA Microbattery GmbH | Button cell and method for the production of button cells |
CN111048702A (en) * | 2019-12-31 | 2020-04-21 | 广东微电新能源有限公司 | Convex edge battery |
CN111074314A (en) * | 2019-12-31 | 2020-04-28 | 广东微电新能源有限公司 | Battery surface electroplating treatment method based on packaged battery |
CN114447495B (en) * | 2021-12-22 | 2023-12-22 | 深圳市依卓尔能源有限公司 | Corrosion prevention treatment method of button lithium battery and button lithium battery |
DE102022117699A1 (en) | 2022-07-15 | 2024-01-18 | Bayerische Motoren Werke Aktiengesellschaft | Means of transport, electrochemical cell and method for producing electrochemical cells |
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JPS55119345A (en) * | 1979-03-08 | 1980-09-13 | Citizen Watch Co Ltd | Thin type battery |
DE2919716A1 (en) * | 1979-05-16 | 1980-11-27 | Varta Batterie | GALVANIC ELEMENT, IN PARTICULAR BUTTON CELL |
DE2936857C2 (en) * | 1979-09-12 | 1987-02-19 | Varta Batterie Ag, 3000 Hannover | Galvanic element with a sealed housing and method for its manufacture |
DE3113309A1 (en) | 1981-04-02 | 1982-10-21 | Varta Batterie Ag, 3000 Hannover | Galvanic element |
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-
2008
- 2008-04-08 AT AT10004131T patent/ATE535030T1/en active
- 2008-04-08 WO PCT/EP2008/002764 patent/WO2008125246A2/en active Application Filing
- 2008-04-08 EP EP10004131A patent/EP2230704B1/en active Active
- 2008-04-08 EP EP08735083A patent/EP2137775A2/en not_active Withdrawn
- 2008-04-08 CN CN2008800199179A patent/CN101682004B/en active Active
- 2008-04-08 US US12/595,126 patent/US20130143104A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
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See references of WO2008125246A3 * |
Also Published As
Publication number | Publication date |
---|---|
WO2008125246A2 (en) | 2008-10-23 |
ATE535030T1 (en) | 2011-12-15 |
EP2230704B1 (en) | 2011-11-23 |
CN101682004A (en) | 2010-03-24 |
US20130143104A1 (en) | 2013-06-06 |
CN101682004B (en) | 2012-12-19 |
DE102007018259A1 (en) | 2008-10-16 |
EP2230704A1 (en) | 2010-09-22 |
WO2008125246A3 (en) | 2009-01-15 |
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