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US4125686A
Expired / Lapsed
US
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Laminar cells and methods for making the same
Assignee: Polaroid Corp
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Filing: 1977-06-30
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Granted: 1978-11-14
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Expires: 1997-06-30
Abstract
Abstract The method of making a laminar battery including the steps of contacting the cellophane side of a laminate of cellophane and zinc powder adhered to the cellophane with a polymeric binder with a cathode slurry of carbon and manganese dioxide in an aqueous solution of electrolytes, coating the zinc side of the laminate with a carbon slurry, and contacting the carbon slurry with a conductive plastic current collector, and cells and batteries made by this process.
Inventors
- 👤 Gordon F. Kinsman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:04
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M4/66; H01M4/663; H01M4/668; H01M6/00; H01M6/04; H01M6/06; H01M6/12; H01M6/42; H01M6/46; H01M6/48
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
70 words
In an electrical cell, the combination comprising a thin sheet of ion permeable separator material; a first electrolyte permeable layer of active electrode particles held together with a polymeric binder on said separator sheet; said first layer having aqueous electrolyte distributed therein; a layer comprising a dispersion of carbon particles in aqueous electrolyte on said first layer, and a conductive plastic sheet over and in contact with said second layer.
Claim 2
Dependent Claim
70 words
In an electrical cell, the combination comprising a thin sheet of ion permeable separator material; a first electrolyte permeable layer of active electrode particles held together with a polymeric binder on said separator sheet; said first layer having aqueous electrolyte distributed therein; a layer comprising a dispersion of carbon particles in aqueous electrolyte on said first layer, and a conductive plastic sheet over and in contact with said second layer.
Claim 3
Dependent Claim
70 words
In an electrical cell, the combination comprising a thin separator sheet of regenerated cellulose, a first electrolyte permeable layer of active electrode particles held together with a polymeric binder on said separator sheet, said first layer having aqueous electrolyte distributed therein, a layer comprising a dispersion of carbon particles in aqueous electrolyte carried on said first layer, and a conductive plastic sheet over and in contact with said second layer.
Claim 4
Dependent Claim
70 words
In an electrical cell, the combination comprising a thin separator sheet of regenerated cellulose, a first electrolyte permeable layer of active electrode particles held together with a polymeric binder on said separator sheet, said first layer having aqueous electrolyte distributed therein, a layer comprising a dispersion of carbon particles in aqueous electrolyte carried on said first layer, and a conductive plastic sheet over and in contact with said second layer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-11-13 | 1982-05-15 | 1982-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-13 | 1986-05-15 | 1986-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-13 | 1990-05-15 | 1990-11-14 | $7700.00 | Window Closed / Lapsed |