US5342709A
Expired / Lapsed
US
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Battery utilizing ceramic membranes
Assignee: Wisconsin Alumni Research Foundation
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Filing: 1993-05-03
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Granted: 1994-08-30
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Expires: 2013-05-03
Abstract
Abstract A thin film battery is disclosed based on the use of ceramic membrane technology. The battery includes a pair of conductive collectors on which the materials for the anode and the cathode may be spin coated. The separator is formed of a porous metal oxide ceramic membrane impregnated with electrolyte so that electrical separation is maintained while ion mobility is also maintained. The entire battery can be made less than 10 microns thick while generating a potential in the 1 volt range.
Inventors
- 👤 Mark S. Yahnke
- 👤 Golan Shlomo
- 👤 Marc A. Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:47
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/04; H01M6/06; H01M6/12; H01M10/00; H01M10/24; H01M10/28; H01M10/287; H01M50/00; H01M50/40; H01M50/409; H01M50/431; H01M50/434; H01M2300/00; H01M2300/0002; H01M2300/0014; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02P; Y02P70/00; Y02P70/50
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
43 words
A film battery comprising a cathode surface of conductive material; an anode surface of conductive material; a separator formed of a porous metal oxide ceramic material having a mean pore diameter of less than about 100 Angstroms, the separator impregnated with an electrolyte.
Claim 2
Dependent Claim
43 words
A film battery comprising a cathode surface of conductive material; an anode surface of conductive material; a separator formed of a porous metal oxide ceramic material having a mean pore diameter of less than about 100 Angstroms, the separator impregnated with an electrolyte.
Claim 3
Dependent Claim
26 words
A film battery cell as claimed in claim 1 wherein the cathode surface includes a cathode surface of conductive material deposited on a conductive cathode collector.
Claim 4
Dependent Claim
26 words
A film battery cell as claimed in claim 1 wherein the anode surface includes an anode surface of conductive material deposited on a conductive anode collector.
Claim 5
Dependent Claim
17 words
A film battery cell as claimed in claim 1 wherein the separator is made of zirconium dioxide.
Claim 6
Dependent Claim
37 words
A film battery cell as claimed in claim 1 wherein the metal in the metal oxide ceramic material is selected from the group consisting of titanium, zirconium, zinc, iron, niobium, vanadium, aluminum, tin, silicon, and mixtures thereof.
Claim 7
Dependent Claim
20 words
A film battery cell as claimed in claim 1 wherein the separator layer is less than 10 microns in thickness.
Claim 8
Dependent Claim
25 words
A film battery cell as claimed in claim 1 wherein the cathode surface is a conductive metal oxide ceramic membrane deposited on a conductive support.
Claim 9
Dependent Claim
24 words
A battery cell as claimed in claim 1 wherein the anode surface is a conductive metal oxide ceramic membrane deposited on a conductive support.
Claim 10
Dependent Claim
59 words
A film battery cell comprising a cathode surface of conductive material; an anode surface of conductive material; a separator formed of a porous metal oxide ceramic material having a fused particulate structure and porosity such that the surface area of the separator layer is in excess of about 15 square meters per gram, the separator impregnated with an electrolyte.
Claim 11
Dependent Claim
59 words
A film battery cell comprising a cathode surface of conductive material; an anode surface of conductive material; a separator formed of a porous metal oxide ceramic material having a fused particulate structure and porosity such that the surface area of the separator layer is in excess of about 15 square meters per gram, the separator impregnated with an electrolyte.
Claim 12
Dependent Claim
26 words
A film battery cell as claimed in claim 9 wherein the cathode surface includes a cathode surface of conductive material deposited on a conductive cathode collector.
Claim 13
Dependent Claim
26 words
A film battery cell as claimed in claim 9 wherein the anode surface includes an anode surface of conductive material deposited on a conductive anode collector.
Claim 14
Dependent Claim
17 words
A film battery cell as claimed in claim 9 wherein the separator is made of zirconium dioxide.
Claim 15
Dependent Claim
37 words
A film battery cell as claimed in claim 9 wherein the metal in the metal oxide ceramic material is selected from the group consisting of titanium, zirconium, zinc, iron, niobium, vanadium, aluminum, tin, silicon, and mixtures thereof.
Claim 16
Dependent Claim
20 words
A film battery cell as claimed in claim 9 wherein the separator layer is less than 10 microns in thickness.
Claim 17
Dependent Claim
25 words
A film battery cell as claimed in claim 9 wherein the cathode surface is a conductive metal oxide ceramic membrane deposited on a conductive support.
Claim 18
Dependent Claim
25 words
A film battery cell as claimed in claim 9 wherein the anode surface is a conductive metal oxide ceramic membrane deposited on a conductive support.
Claim 19
Dependent Claim
105 words
A film multiple cell battery comprising: a first cathode of conductive material; a first anode of conductive material; a second cathode of conductive material placed adjacent to and electrically connected to the first anode; a second anode of conductive material; both the first cathode and anode and the second cathode and anode being separated by respective separator layers of thin film porous metal oxide ceramic membranes, the separator layers being less than 10 microns in thickness, the separator layers being impregnated with electrolytes so that the two cells formed by the respective cathode and anode pairs with corresponding separator layers form a thin film battery.
Claim 20
Dependent Claim
105 words
A film multiple cell battery comprising: a first cathode of conductive material; a first anode of conductive material; a second cathode of conductive material placed adjacent to and electrically connected to the first anode; a second anode of conductive material; both the first cathode and anode and the second cathode and anode being separated by respective separator layers of thin film porous metal oxide ceramic membranes, the separator layers being less than 10 microns in thickness, the separator layers being impregnated with electrolytes so that the two cells formed by the respective cathode and anode pairs with corresponding separator layers form a thin film battery.
Claim 21
Dependent Claim
29 words
A film battery cell as claimed in claim 17 wherein the first and second cathodes each includes a cathode surface of conducive material deposited on a conductive cathode collector.
Claim 22
Dependent Claim
29 words
A film battery cell as claimed in claim 17 wherein the first and second anodes each includes an anode surface of conductive material deposited on a conductive anode collector.
Claim 23
Dependent Claim
18 words
A film battery cell as claimed in claim 17 wherein the separator layers are made of zirconium dioxide.
Claim 24
Dependent Claim
37 words
A film battery cell as claimed in claim 17 wherein the metal in the metal oxide ceramic material is selected from the group consisting of titanium, zirconium, zinc, iron, niobium, vanadium, aluminum, tin, silicon, and mixtures thereof.
Claim 25
Dependent Claim
20 words
A film battery cell as claimed in claim 17 wherein each separator layer is less than 10 microns in thickness.
Claim 26
Dependent Claim
24 words
A film battery cell as claimed in claim 17 wherein the cathode is a conductive metal oxide ceramic membrane deposited on a conductive support.
Claim 27
Dependent Claim
24 words
A film battery cell as claimed in claim 17 wherein the anode is a conductive metal oxide ceramic membrane deposited on a conductive support.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-08-29 | 1998-02-28 | 1998-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-08-29 | 2002-02-28 | 2002-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-08-29 | 2006-02-28 | 2006-08-30 | $7700.00 | Window Closed / Lapsed |