US4125685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical cells and batteries and methods of 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 A laminar triplex structure for use in the manufacture of electrical cells and batteries, cells and batteries made therefrom, and methods of making the same. The laminate comprises a thin flat sheet of separator material, a layer of metallic particles on one surface of the separator sheet and adhered thereto with a binder, and a layer of conductive plastic adhered to the layer of metal particles. The laminate is made by the process of coating a dispersion of metal particles in a solution of a polymeric binder in an organic solvent over the separator, drying to remove the solvent, coating over the dried metal layer with a dispersion of conductive particles in a solution of a polymer in an organic solvent, and drying to remove the solvent.
Inventors
- 👤 Stanley M. Bloom
- 👤 Charles K. Chiklis
- 👤 Gordon F. Kinsman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:55
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M4/66; H01M4/06; H01M4/663; H01M4/668; H01M6/00; H01M6/04; H01M6/06; H01M6/42; H01M6/46; H01M6/48; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02P; Y02P70/00; Y02P70/50
Claims Analysis
Total Claims: 41
Claim 1
Independent Claim
44 words
An electrode subassembly, comprising a thin, flat sheet of liquid impervious conductive plastic, a thin, flat, dry layer of active anode particles adhesively bonded to said sheet, and a thin, flat, dry separator sheet of liquid permeable material adhesively bonded to said anode layer.
Claim 2
Dependent Claim
44 words
An electrode subassembly, comprising a thin, flat sheet of liquid impervious conductive plastic, a thin, flat, dry layer of active anode particles adhesively bonded to said sheet, and a thin, flat, dry separator sheet of liquid permeable material adhesively bonded to said anode layer.
Claim 3
Dependent Claim
20 words
The subassembly of claim 1, in which said conductive plastic comprises a dispersion of carbon black in a thermoplastic elastomer.
Claim 4
Dependent Claim
17 words
The subassembly of claim 2, in which said elastomer is a radial teleblock copolymerof styrene and butadiene.
Claim 5
Dependent Claim
37 words
An electrode subassembly, comprising a thin, flat sheet of conductive plastic, a thin, flat, dry layer of zinc particles adhesively bonded to said sheet, and a thin, flat, dry cellophane separator adhesively bonded to said anode layer.
Claim 6
Dependent Claim
37 words
An electrode subassembly, comprising a thin, flat sheet of conductive plastic, a thin, flat, dry layer of zinc particles adhesively bonded to said sheet, and a thin, flat, dry cellophane separator adhesively bonded to said anode layer.
Claim 7
Dependent Claim
20 words
The subassembly of claim 4, in which said conductive plastic comprises a dispersion of carbon black in a thermoplastic elastomer.
Claim 8
Dependent Claim
19 words
The subassembly of claim 5, in which said thermoplastic elastomer is a radial teleblock copolymer of styrene and butadiene.
Claim 9
Dependent Claim
85 words
A subassembly for use in the manufacture of laminar batteries, comprising a dry sheet of liquid permeable separator material, a dry electrode layer of active anode particles in an adhesive binder matrix adhering to one side of said sheet, and a layer of liquid impervious conductive plastic adhering to said electrode layer, in which said conductive plastic comprises a dispersion of carbon particles in a thermoplastic elastomer, and in which said adhesive binder matrix comprises the same elastomer as said elastomer in said conductive plastic.
Claim 10
Dependent Claim
85 words
A subassembly for use in the manufacture of laminar batteries, comprising a dry sheet of liquid permeable separator material, a dry electrode layer of active anode particles in an adhesive binder matrix adhering to one side of said sheet, and a layer of liquid impervious conductive plastic adhering to said electrode layer, in which said conductive plastic comprises a dispersion of carbon particles in a thermoplastic elastomer, and in which said adhesive binder matrix comprises the same elastomer as said elastomer in said conductive plastic.
Claim 11
Dependent Claim
33 words
The subassembly of claim 7, in which said anode particles comprise a major proportion of zinc powder and a minor proportion of carbon black, and in which said separator material comprises regenerated cellulose.
Claim 12
Dependent Claim
68 words
A laminate for use in the manufacture of laminar batteries and comprising a dry sheet of separator material, an adherent dry electrode layer of active electrode particles in a binder matrix on one side of said separator sheet, and an adherent layer of liquid impervious conductive plastic on said electrode layer, said laminate being in elongated sheet form adapted to be cut into a plurality of unitary subassemblies.
Claim 13
Dependent Claim
68 words
A laminate for use in the manufacture of laminar batteries and comprising a dry sheet of separator material, an adherent dry electrode layer of active electrode particles in a binder matrix on one side of said separator sheet, and an adherent layer of liquid impervious conductive plastic on said electrode layer, said laminate being in elongated sheet form adapted to be cut into a plurality of unitary subassemblies.
Claim 14
Dependent Claim
29 words
The laminate of claim 9, in which said separator material is regenerated cellulose, and in which said conductive plastic comprises a dispersion of carbon particles in a thermoplastic elastomer.
Claim 15
Dependent Claim
25 words
The laminate of claim 10, in which said active electrode particles comprise a major proportion of zinc particles and a minor proportion of carbon particles.
Claim 16
Dependent Claim
24 words
The laminate of claim 11, in which said binder matrix comprises an elastomer of the same composition as said elastomer in said conductive plastic.
Claim 17
Dependent Claim
18 words
The laminate of claim 12, in which said elastomer is a radial teleblock copolymer of butadiene and styrene.
Claim 18
Dependent Claim
57 words
A laminate for use in the manufacture of laminar batteries and comprising a sheet of regenerated cellulose, an adherent electrode layer of zinc particles in a binder matrix on one side of said regenerated cellulose sheet, and an adherent layer of liquid impervious conductive plastic on said electrode layer, said layers being coextensive in their major dimensions.
Claim 19
Dependent Claim
57 words
A laminate for use in the manufacture of laminar batteries and comprising a sheet of regenerated cellulose, an adherent electrode layer of zinc particles in a binder matrix on one side of said regenerated cellulose sheet, and an adherent layer of liquid impervious conductive plastic on said electrode layer, said layers being coextensive in their major dimensions.
Claim 20
Dependent Claim
86 words
A subassembly for use in the manufacture of laminar batteries, comprising a dry sheet of liquid permeable separator material, an electrode layer of dry active anode particles in an adhesive binder matrix adhering to one side of said sheet, a layer of liquid impervious conductive plastic adhering to said electrode layer, and a frame of insulating material adhering to said conductive plastic, having border portions extending beyond the borders of said conductive plastic, and formed with a central opening within the borders of said conductive plastic.
Claim 21
Dependent Claim
86 words
A subassembly for use in the manufacture of laminar batteries, comprising a dry sheet of liquid permeable separator material, an electrode layer of dry active anode particles in an adhesive binder matrix adhering to one side of said sheet, a layer of liquid impervious conductive plastic adhering to said electrode layer, and a frame of insulating material adhering to said conductive plastic, having border portions extending beyond the borders of said conductive plastic, and formed with a central opening within the borders of said conductive plastic.
Claim 22
Dependent Claim
67 words
A subassembly for use in the manufacture of laminar batteries, comprising a dry sheet of liquid permeable cellophane, an electrode layer of zinc particles in a dry adhesive binder matrix adhering to one side of said sheet, a layer of liquid impervious conductive plastic adhering to said electrode layer, and a frame of thermoplastic insulating material sealed to said conductive plastic and formed with a central opening.
Claim 23
Dependent Claim
67 words
A subassembly for use in the manufacture of laminar batteries, comprising a dry sheet of liquid permeable cellophane, an electrode layer of zinc particles in a dry adhesive binder matrix adhering to one side of said sheet, a layer of liquid impervious conductive plastic adhering to said electrode layer, and a frame of thermoplastic insulating material sealed to said conductive plastic and formed with a central opening.
Claim 24
Dependent Claim
86 words
A laminar electrical cell, comprising a first sheet of conductive plastic, a cathode layer adhering to a central region of said first sheet and comprising a slurry dispersion of manganese dioxide and carbon particles in an aqueous solution of electrolytes, a cellophane separator adhereing to said cathode layer, a second sheet of conductive plastic overlying said first sheet and covering said separator, and an anode layer comprising zinc particles adhered to said second sheet with an adhesive binder and in intimate contact with said cellophane separator.
Claim 25
Dependent Claim
86 words
A laminar electrical cell, comprising a first sheet of conductive plastic, a cathode layer adhering to a central region of said first sheet and comprising a slurry dispersion of manganese dioxide and carbon particles in an aqueous solution of electrolytes, a cellophane separator adhereing to said cathode layer, a second sheet of conductive plastic overlying said first sheet and covering said separator, and an anode layer comprising zinc particles adhered to said second sheet with an adhesive binder and in intimate contact with said cellophane separator.
Claim 26
Dependent Claim
20 words
The electrical cell of claim 17, in which said anode layer and said second sheet are coextensive with said separator.
Claim 27
Dependent Claim
100 words
A laminar electrical cell, comprising a first sheet of conductive plastic, a first electrode layer adhering to a central region of said first sheet and comprising a slurry dispersion of first electrode particles in an aqueous solution of electrolytes, a separator adhering to said first electrode layer and having borders extending beyond the boundaries of said first electrode layer, a second sheet of conductive plastic overlying said first sheet and covering said separator, and a second electrode layer comprising second electrode particles adhered to said second sheet with an adhesive binder and in contact with and coextensive with said separator.
Claim 28
Dependent Claim
100 words
A laminar electrical cell, comprising a first sheet of conductive plastic, a first electrode layer adhering to a central region of said first sheet and comprising a slurry dispersion of first electrode particles in an aqueous solution of electrolytes, a separator adhering to said first electrode layer and having borders extending beyond the boundaries of said first electrode layer, a second sheet of conductive plastic overlying said first sheet and covering said separator, and a second electrode layer comprising second electrode particles adhered to said second sheet with an adhesive binder and in contact with and coextensive with said separator.
Claim 29
Dependent Claim
184 words
A thin, flat laminar battery, comprising a stack of cells connected in series and terminated at each end by conductive plastic sheets, each of said cells comprising a cathode layer adhering to one side of one of said plastic sheets and consisting essentially of a dispersion of manganese dioxide and carbon particles in an aqueous solution of electrolytes essentially free of polymeric binders, a cellophane separator in contact with said cathode layer and having border portions extending beyond the confines of said cathode layer, and an anode layer in contact with the other side of said separator and comprising zinc particles mechanically connected to a confronting surface of another of said conductive plastic sheets with an adhesive binder, said anode layer having boundaries in registry with the boundaries of said separator and being wet by an aqueous solution of electrolytes with a viscosity of about 1 centipoise, said cells being sealed about their peripheries by insulating frames of thermoplastic material between each adjacent pair of said conductive plastic sheets and being sealed to each other and to the borders of said conductive plastic sheets.
Claim 30
Dependent Claim
184 words
A thin, flat laminar battery, comprising a stack of cells connected in series and terminated at each end by conductive plastic sheets, each of said cells comprising a cathode layer adhering to one side of one of said plastic sheets and consisting essentially of a dispersion of manganese dioxide and carbon particles in an aqueous solution of electrolytes essentially free of polymeric binders, a cellophane separator in contact with said cathode layer and having border portions extending beyond the confines of said cathode layer, and an anode layer in contact with the other side of said separator and comprising zinc particles mechanically connected to a confronting surface of another of said conductive plastic sheets with an adhesive binder, said anode layer having boundaries in registry with the boundaries of said separator and being wet by an aqueous solution of electrolytes with a viscosity of about 1 centipoise, said cells being sealed about their peripheries by insulating frames of thermoplastic material between each adjacent pair of said conductive plastic sheets and being sealed to each other and to the borders of said conductive plastic sheets.
Claim 31
Dependent Claim
72 words
A laminate for use in the manufacture of laminar batteries and comprising a dry sheet of regenerated cellulose, an adherent dry electrode layer of active electrode particles in a binder matrix adhered to a central region of one surface of said regenerated cellulose sheet, and a layer of liquid impervious conductive plastic adhering to said electrode layer and to portions of said surface of said regenerated cellulose sheet beyond said electrode layer.
Claim 32
Dependent Claim
72 words
A laminate for use in the manufacture of laminar batteries and comprising a dry sheet of regenerated cellulose, an adherent dry electrode layer of active electrode particles in a binder matrix adhered to a central region of one surface of said regenerated cellulose sheet, and a layer of liquid impervious conductive plastic adhering to said electrode layer and to portions of said surface of said regenerated cellulose sheet beyond said electrode layer.
Claim 33
Dependent Claim
121 words
A subassembly for use in the manufacture of laminar batteries comprising a dry sheet of regenerated cellulose, an electrode layer of zinc particles in a dry adhesive binder matrix adhering to a central region of one surface of said regenerated cellulose sheet, a liquid impervious conductive plastic layer comprising a dispersion of carbon black in a teleblock copolymer of styrene and butadiene adhering to said electrode layer and to portions of said surface of said regenerated cellulose sheet beyond said electrode layer, and a frame of thermoplastic insulating material comprising a teleblock copolymer of styrene and butadiene and from 0 to 30 parts by weight of polystyrene per 100 parts by weight of insulating material adhered to said conductive plastic layer.
Claim 34
Dependent Claim
121 words
A subassembly for use in the manufacture of laminar batteries comprising a dry sheet of regenerated cellulose, an electrode layer of zinc particles in a dry adhesive binder matrix adhering to a central region of one surface of said regenerated cellulose sheet, a liquid impervious conductive plastic layer comprising a dispersion of carbon black in a teleblock copolymer of styrene and butadiene adhering to said electrode layer and to portions of said surface of said regenerated cellulose sheet beyond said electrode layer, and a frame of thermoplastic insulating material comprising a teleblock copolymer of styrene and butadiene and from 0 to 30 parts by weight of polystyrene per 100 parts by weight of insulating material adhered to said conductive plastic layer.
Claim 35
Dependent Claim
36 words
A laminate useful in the manufacture of electrical cells and comprising a layer of powdered metal adhered to at least a portion of one surface of a smooth sheet of regenerated cellulose with a polymeric binder.
Claim 36
Dependent Claim
36 words
A laminate useful in the manufacture of electrical cells and comprising a layer of powdered metal adhered to at least a portion of one surface of a smooth sheet of regenerated cellulose with a polymeric binder.
Claim 37
Dependent Claim
18 words
The laminate of claim 23, in which said powdered metal layer contains a minor proportion of carbon particles.
Claim 38
Dependent Claim
12 words
The laminate of claim 24, in which said powdered metal is zinc.
Claim 39
Dependent Claim
19 words
The laminate of claim 25, in which said polymeric binder is an elastomeric teleblock copolymer of butadiene and styrene.
Claim 40
Dependent Claim
93 words
A laminate for use in the manufacture of laminar batteries and comprising a sheet of regenerated cellulose, an adherent electrode layer of active electrode particles in a binder matric adhered to a central region of one surface of said regenerated cellulose sheet, and a layer of liquid impervious conductive plastic adhering to said electrode layer and to portions of said surface of said regenerated cellulose sheet beyond said electrode layer, said laminate being of uniform thickness and said conductive plastic layer being of varying thickness to accommodate the thickness of said electrode layer.
Claim 41
Dependent Claim
93 words
A laminate for use in the manufacture of laminar batteries and comprising a sheet of regenerated cellulose, an adherent electrode layer of active electrode particles in a binder matric adhered to a central region of one surface of said regenerated cellulose sheet, and a layer of liquid impervious conductive plastic adhering to said electrode layer and to portions of said surface of said regenerated cellulose sheet beyond said electrode layer, said laminate being of uniform thickness and said conductive plastic layer being of varying thickness to accommodate the thickness of said electrode layer.
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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 |