US4125684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical cells and batteries
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 Laminar electrical cells in which one electrode comprises a thin layer of active electrode particles adhered to a central region of a conductive plastic substrate and in contact with a central region of a separator sheet of liquid permeable material. The other electrode is a slurry dispersion of active electrode particles in an aqueous solution of electrolytes in contact with the opposite side of the separator sheet. The aqueous solution permeates the separator and both electrodes.
Inventors
- 👤 Edwin H. Land
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:51
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/04; H01M6/06; H01M4/00; H01M4/02; H01M4/06; H01M6/42; H01M6/46; H01M6/48; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02P; Y02P70/00; Y02P70/50
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
122 words
An electrode terminal subassembly, comprising a thin, flat metal terminal sheet, a thin, flat current collector sheet of conductive plastic conductively adhered to said terminal sheet, a thin, flat dry patch electrode adhered to a predetermined region of the surface of said current collector within the peripheries of said current collector, a thin, flat separator over said electrode and extending beyond the boundaries of said electrode over adjacent regions of said current collector within said peripheries, and an insulating frame over said current collector and said separator, said frame being formed with a central aperture in registry with said electrode and smaller than said separator, and said frame being adhered to regions of said current collector beyond the boundaries of said separator.
Claim 2
Dependent Claim
122 words
An electrode terminal subassembly, comprising a thin, flat metal terminal sheet, a thin, flat current collector sheet of conductive plastic conductively adhered to said terminal sheet, a thin, flat dry patch electrode adhered to a predetermined region of the surface of said current collector within the peripheries of said current collector, a thin, flat separator over said electrode and extending beyond the boundaries of said electrode over adjacent regions of said current collector within said peripheries, and an insulating frame over said current collector and said separator, said frame being formed with a central aperture in registry with said electrode and smaller than said separator, and said frame being adhered to regions of said current collector beyond the boundaries of said separator.
Claim 3
Dependent Claim
123 words
An anode terminal subassembly, comprising a thin, flat metal terminal sheet, a thin, flat current collector sheet of conductive plastic conductively adhered to said terminal sheet, a thin, flat dry patch anode adhered to a predetermined region of the surface of said current collector within the peripheries of said current collector, a thin, flat cellophane separator over said anode and extending beyond the boundaries of said anode over adjacent regions of said current collector within said peripheries, and an insulating frame over said current collector and said separator, said frame being formed with a central aperture in registry with said anode and smaller than said separator, and said frame being sealed to regions of said current collector beyond the boundaries of said separator.
Claim 4
Dependent Claim
123 words
An anode terminal subassembly, comprising a thin, flat metal terminal sheet, a thin, flat current collector sheet of conductive plastic conductively adhered to said terminal sheet, a thin, flat dry patch anode adhered to a predetermined region of the surface of said current collector within the peripheries of said current collector, a thin, flat cellophane separator over said anode and extending beyond the boundaries of said anode over adjacent regions of said current collector within said peripheries, and an insulating frame over said current collector and said separator, said frame being formed with a central aperture in registry with said anode and smaller than said separator, and said frame being sealed to regions of said current collector beyond the boundaries of said separator.
Claim 5
Dependent Claim
123 words
An anode terminal subassembly, comprising a thin, flat metal terminal sheet, a thin, flat current collector sheet of conductive plastic adhered to said terminal sheet, a thin, flat zinc anode covering a predetermined region of the surface of said current collector within the peripheries of said current collector, a thin, flat cellophane separator over said anode and extending beyond the boundaries of said anode over adjacent regions of said current collector within said peripheries, and an insulating frame of thermoplastic material over said current collector and said separator, said frame being formed with a central aperture in registry with said anode and smaller than said separator, and said frame being sealed to regions of said current collector beyond the boundaries of said separator.
Claim 6
Dependent Claim
123 words
An anode terminal subassembly, comprising a thin, flat metal terminal sheet, a thin, flat current collector sheet of conductive plastic adhered to said terminal sheet, a thin, flat zinc anode covering a predetermined region of the surface of said current collector within the peripheries of said current collector, a thin, flat cellophane separator over said anode and extending beyond the boundaries of said anode over adjacent regions of said current collector within said peripheries, and an insulating frame of thermoplastic material over said current collector and said separator, said frame being formed with a central aperture in registry with said anode and smaller than said separator, and said frame being sealed to regions of said current collector beyond the boundaries of said separator.
Claim 7
Dependent Claim
113 words
A subassembly for use in the manufacture of laminar batteries and comprising, in combination, a conductive plastic intercell connector, a dry patch anode layer adhered to a central region of a surface of said intercell connector within its boundaries, a thin, flat cellophane separator covering said anode layer and extending beyond the boundaries of said anode layer over portions of said intercell connector within the boundaries of said intercell connector, and a thin, flat frame of insulating material overlapping said separator and having a central opening in registry with said anode layer, said frame having border portions adhered to regions of said surface of said intercell connector beyond the boundaries of said separator.
Claim 8
Dependent Claim
113 words
A subassembly for use in the manufacture of laminar batteries and comprising, in combination, a conductive plastic intercell connector, a dry patch anode layer adhered to a central region of a surface of said intercell connector within its boundaries, a thin, flat cellophane separator covering said anode layer and extending beyond the boundaries of said anode layer over portions of said intercell connector within the boundaries of said intercell connector, and a thin, flat frame of insulating material overlapping said separator and having a central opening in registry with said anode layer, said frame having border portions adhered to regions of said surface of said intercell connector beyond the boundaries of said separator.
Claim 9
Dependent Claim
29 words
The subassembly of claim 4, further comprising a cathode slurry patch adhering to a surface of said intercell connector opposite said surface to which said anode layer is adhered.
Claim 10
Dependent Claim
99 words
A subassembly for use in the manufacture of laminar batteries and comprising, in combination, a conductive plastic intercell connector, a dry patch anode layer of zinc particles adhered with an adhesive binder to a central region of a surface of said intercell connector within its boundaries, a cellophane separator covering said anode layer and extending beyond the boundaries of said anode layer over portions of said intercell connector within the boundaries of said intercell connector, and a thin, flat frame of insulating material adhered to regions of said surface of said intercell connector beyond the boundaries of said separator.
Claim 11
Dependent Claim
99 words
A subassembly for use in the manufacture of laminar batteries and comprising, in combination, a conductive plastic intercell connector, a dry patch anode layer of zinc particles adhered with an adhesive binder to a central region of a surface of said intercell connector within its boundaries, a cellophane separator covering said anode layer and extending beyond the boundaries of said anode layer over portions of said intercell connector within the boundaries of said intercell connector, and a thin, flat frame of insulating material adhered to regions of said surface of said intercell connector beyond the boundaries of said separator.
Claim 12
Dependent Claim
44 words
The subassembly of claim 6, further comprising a cathode slurry patch comprising a dispersion of manganese dioxide and carbon particles in an aqueous solution of electrolytes adhering to a surface of said intercell connector opposite said surface to which said anode layer is adhered.
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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) | 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 |