US4464446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anodes of composite materials and accumulators using solid anodes
Assignee: CIVILE DITE SOCIETE CIVILE DES COMPOSITES ELECTROLYTIQUES Ste
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Filing: 1983-06-02
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Granted: 1984-08-07
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Expires: 2003-06-02
Abstract
Abstract The present invention relates to anodes of composite materials, which are formed on a support constituted by fibrils, which are coated with a conducting layer of copper of thickness comprised between 3 and 10 microns. The copper layer is covered with a layer of cadmium of thickness comprised between 3 and 6 microns and the latter is covered with a layer of zinc of thickness greater than about 20 microns.
Inventors
- 👤 Michel Berger
- 👤 Pierre Schaeffner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:20
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/04; H01M4/0438; H01M4/045; H01M4/0452; H01M4/64; H01M4/66; H01M10/00; H01M10/24; H01M10/26; H01M4/24; H01M4/665; H01M4/667; H01M4/70; H01M4/72; H01M4/74; H01M4/747; H01M2004/026; H01M2004/027; H01M4/661; H01M4/663; H01M50/00; H01M50/40; H01M50/46; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02P; Y02P70/00; Y02P70/50
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
66 words
Anodes of a composite material, formed on a support constituted by fibrils, said fibrils being coated with a conducting layer of copper of thickness comprised between 3 and 10 microns, said copper layer being covered with a layer of cadmium of thickness comprised between 3 and 6 microns and said cadmium layer being covered with a layer of zinc of thickness greater than about 20 microns.
Claim 2
Dependent Claim
66 words
Anodes of a composite material, formed on a support constituted by fibrils, said fibrils being coated with a conducting layer of copper of thickness comprised between 3 and 10 microns, said copper layer being covered with a layer of cadmium of thickness comprised between 3 and 6 microns and said cadmium layer being covered with a layer of zinc of thickness greater than about 20 microns.
Claim 3
Dependent Claim
10 words
Accumulators, using at least one anode according to claim 1.
Claim 4
Dependent Claim
24 words
Accumulators according to claim 2, wherein said anodes are in a sack of a semi-permeable cellulosic membrane containing an alkaline electrolyte saturated in zincate.
Claim 5
Dependent Claim
21 words
Accumulators according to claim 3, wherein said electrolyte is gelled so as to have a viscosity higher than about 20,000 centipoises.
Claim 6
Dependent Claim
8 words
Accumulators according to claim 2 comprising nickel-based cathodes.
Claim 7
Dependent Claim
8 words
Accumulators according to claim 3, comprising nickel-based cathodes.
Claim 8
Dependent Claim
8 words
Accumulators according to claim 4, comprising nickel-based cathodes.
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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) | 1987-08-07 | 1988-02-06 | 1988-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-07 | 1992-02-06 | 1992-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-07 | 1996-02-06 | 1996-08-07 | $7700.00 | Window Closed / Lapsed |