Patent US4173066A successfully refreshed from Google Patents.
US4173066A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods for making laminar cells
Assignee: Polaroid Corp
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Filing: 1977-12-08
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Granted: 1979-11-06
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Expires: 1997-12-08
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
2026-10-28 12:01
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; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49108; Y10T29/49115
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
61 words
In the method of making a laminar electrical cell using an electrode layer prelaminated to a separator sheet, the steps of covering said electrode layer with an aqueous slurry dispersion of carbon black, and contacting said carbon dispersion with a sheet of conductive plastic to establish electronic communication between said conductive plastic sheet and said electrode layer through said carbon dispersion.
Claim 2
Dependent Claim
61 words
In the method of making a laminar electrical cell using an electrode layer prelaminated to a separator sheet, the steps of covering said electrode layer with an aqueous slurry dispersion of carbon black, and contacting said carbon dispersion with a sheet of conductive plastic to establish electronic communication between said conductive plastic sheet and said electrode layer through said carbon dispersion.
Claim 3
Dependent Claim
94 words
In the method of making an electrical cell from a laminate comprising a sheet of regenerated cellulose covered on one side with a layer of first active electrode particles adhered to the sheet with a polymeric binder, the steps of contacting the regenerated cellulose side of said sheet with a slurry dispersion of second active electrode particles in an aqueous solution of electrolytes, coating said layer of first electrode particles with a slurry comprising an aqueous dispersion of carbon particles, and covering and contacting said carbon dispersion coating with a sheet of conductive plastic.
Claim 4
Dependent Claim
94 words
In the method of making an electrical cell from a laminate comprising a sheet of regenerated cellulose covered on one side with a layer of first active electrode particles adhered to the sheet with a polymeric binder, the steps of contacting the regenerated cellulose side of said sheet with a slurry dispersion of second active electrode particles in an aqueous solution of electrolytes, coating said layer of first electrode particles with a slurry comprising an aqueous dispersion of carbon particles, and covering and contacting said carbon dispersion coating with a sheet of conductive plastic.
Claim 5
Dependent Claim
22 words
The method of claim 2, in which said first active electrode particles comprise zinc particles and a minor proportion of carbon black.
Claim 6
Dependent Claim
78 words
In the method of making a laminar electrical cell using an electrode layer prelaminated to a cellophane separator sheet, said electrode layer comprising active electrode particles adhered to said separator sheet with a polymeric binder, the steps of covering said electrode layer with an aqueous slurry dispersion of carbon black and contacting said carbon dispersion with a sheet of conductive plastic to establish electronic communication between said conductive plastic sheet and said electrode layer through said carbon dispersion.
Claim 7
Dependent Claim
78 words
In the method of making a laminar electrical cell using an electrode layer prelaminated to a cellophane separator sheet, said electrode layer comprising active electrode particles adhered to said separator sheet with a polymeric binder, the steps of covering said electrode layer with an aqueous slurry dispersion of carbon black and contacting said carbon dispersion with a sheet of conductive plastic to establish electronic communication between said conductive plastic sheet and said electrode layer through said carbon dispersion.
Claim 8
Dependent Claim
92 words
In the method of making an electrical cell from a laminate comprising a sheet of regenerated cellulose covered on one side with a layer of zinc particles adhered to the sheet with a polymeric binder, the steps of contacting the regenerated cellulose side of said sheet with a slurry dispersion of manganese dioxide and carbon particles in an aqueous solution of electrolytes, coating said zinc particle layer with a carbon slurry comprising an aqueous dispersion of carbon particles, and covering and contacting said carbon slurry coating with a sheet of conductive plastic.
Claim 9
Dependent Claim
92 words
In the method of making an electrical cell from a laminate comprising a sheet of regenerated cellulose covered on one side with a layer of zinc particles adhered to the sheet with a polymeric binder, the steps of contacting the regenerated cellulose side of said sheet with a slurry dispersion of manganese dioxide and carbon particles in an aqueous solution of electrolytes, coating said zinc particle layer with a carbon slurry comprising an aqueous dispersion of carbon particles, and covering and contacting said carbon slurry coating with a sheet of conductive plastic.
Claim 10
Dependent Claim
49 words
The method of claim 5, in which said layer of zinc particles comprises a major proportion of zinc particles and a minor proportion of carbon black, and in which said carbon slurry contains about 5 parts by weight of carbon black per hundred parts by weight of carbon slurry.
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) | 1982-11-05 | 1983-05-07 | 1983-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-05 | 1987-05-07 | 1987-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-05 | 1991-05-07 | 1991-11-06 | $7700.00 | Window Closed / Lapsed |