Patent US2942620A successfully refreshed from Google Patents.
US4137627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making flat batteries
Assignee: Polaroid Corp
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Filing: 1977-11-18
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Granted: 1979-02-06
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Expires: 1997-11-18
Abstract
Abstract A frame and separator assembly for the manufacture of thin, flat laminar batteries in which the frame has adhesive surfaces to which a separator is adhered. The method of making batteries in which these assemblies are placed over electrode slurries extruded onto conductive plastic substrates and the separators are coated with electrolyte and then contacted with dry patch anodes on conductive plastic substrates to form cells.
Inventors
- 👤 Gordon F. Kinsman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:53
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/42; H01M6/46; H01M6/48; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49108; Y10T29/4911; Y10T29/49114; Y10T29/4981
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
170 words
In the method of manufacturing a thin, flat laminar battery, the steps of forming a first thin, dry patch anode layer over a central region of the surface of a first sheet of liquid impervious conductive plastic material, extruding a layer of wet slurry cathode material over a surface of said sheet opposite said dry patch anode, temporarily heat sealing a cellophane separator to one surface of a liquid impervious thermoplastic frame over an opening formed in said frame adapted to receive said cathode slurry layer, placing the side of said frame opposite said separator in contact with said first sheet with said cathode slurry in said opening, coating the exposed surface of said separator with gel electrolyte, forming a second thin, dry patch anode layer over a central region of the surface of a second sheet of liquid impervious conductive plastic material congruent with said first sheet, and placing said second sheet over said frame with said second anode patch in registry and in contact with said gel electrolyte.
Claim 2
Dependent Claim
170 words
In the method of manufacturing a thin, flat laminar battery, the steps of forming a first thin, dry patch anode layer over a central region of the surface of a first sheet of liquid impervious conductive plastic material, extruding a layer of wet slurry cathode material over a surface of said sheet opposite said dry patch anode, temporarily heat sealing a cellophane separator to one surface of a liquid impervious thermoplastic frame over an opening formed in said frame adapted to receive said cathode slurry layer, placing the side of said frame opposite said separator in contact with said first sheet with said cathode slurry in said opening, coating the exposed surface of said separator with gel electrolyte, forming a second thin, dry patch anode layer over a central region of the surface of a second sheet of liquid impervious conductive plastic material congruent with said first sheet, and placing said second sheet over said frame with said second anode patch in registry and in contact with said gel electrolyte.
Claim 3
Dependent Claim
142 words
In a method of making a thin, flat laminar battery, the steps of extruding a first wet slurry cathode layer over a region of the surface within the periphery of a liquid impervious conductive plastic sheet, heat sealing a cellophane separator over a central opening formed in a frame of liquid impervious insulating material at least the exterior surface of which comprises a thermoplastic hot melt adhesive material, placing said frame over said sheet with said first cathode slurry in the opening in said frame with said separator thereon exposed, coating said separator with a layer of gel electrolyte, forming a dry patch anode layer over a central region of the surface of a sheet of liquid impervious conductive plastic material, and placing said sheet over said frame with the anode layer thereon in contact with the gel electrolyte on said separator.
Claim 4
Dependent Claim
142 words
In a method of making a thin, flat laminar battery, the steps of extruding a first wet slurry cathode layer over a region of the surface within the periphery of a liquid impervious conductive plastic sheet, heat sealing a cellophane separator over a central opening formed in a frame of liquid impervious insulating material at least the exterior surface of which comprises a thermoplastic hot melt adhesive material, placing said frame over said sheet with said first cathode slurry in the opening in said frame with said separator thereon exposed, coating said separator with a layer of gel electrolyte, forming a dry patch anode layer over a central region of the surface of a sheet of liquid impervious conductive plastic material, and placing said sheet over said frame with the anode layer thereon in contact with the gel electrolyte on said separator.
Claim 5
Dependent Claim
169 words
In the method of manufacturing a thin, flat laminar battery, the steps of forming a first electrode layer over a central region of the surface of a first sheet of liquid impervious conductive plastic material, extruding a layer of wet slurry electrode material over a surface of said sheet opposite said first electrode, temporarily heat sealing a separator to one surface of a liquid impervious thermoplastic frame over an opening formed in said frame adapted to receive said slurry electrode, placing the side of said frame opposite said separator in contact with said first sheet with said wet slurry electrode in said opening, coating the exposed surface of said separator with electrolyte, forming a third electrode layer of the same composition as said first electrode layer over a central region of the surface of a second sheet of liquid impervious conductive plastic material congruent with said first sheet, and placing said second sheet over said frame with said third electrode layer in registry and in contact with said electrolyte.
Claim 6
Dependent Claim
169 words
In the method of manufacturing a thin, flat laminar battery, the steps of forming a first electrode layer over a central region of the surface of a first sheet of liquid impervious conductive plastic material, extruding a layer of wet slurry electrode material over a surface of said sheet opposite said first electrode, temporarily heat sealing a separator to one surface of a liquid impervious thermoplastic frame over an opening formed in said frame adapted to receive said slurry electrode, placing the side of said frame opposite said separator in contact with said first sheet with said wet slurry electrode in said opening, coating the exposed surface of said separator with electrolyte, forming a third electrode layer of the same composition as said first electrode layer over a central region of the surface of a second sheet of liquid impervious conductive plastic material congruent with said first sheet, and placing said second sheet over said frame with said third electrode layer in registry and in contact with said electrolyte.
Claim 7
Dependent Claim
139 words
In a method of making a thin, flat laminar battery, the steps of extruding a first wet slurry cathode layer over a region of the surface within the periphery of a first liquid impervious conductive plastic sheet, sealing a separator over a central opening formed in a frame of liquid impervious insulating material at least the exterior surface of which comprises a thermoplastic hot melt adhesive material, placing said frame over said sheet with said first cathode slurry in the opening in said frame with said separator thereon exposed, coating said separator with a layer of electrolyte, forming an anode layer over a central region of the surface of a second sheet of liquid impervious conductive plastic material, and placing said second sheet over said frame with the anode layer thereon in contact with the electrolyte on said separator.
Claim 8
Dependent Claim
139 words
In a method of making a thin, flat laminar battery, the steps of extruding a first wet slurry cathode layer over a region of the surface within the periphery of a first liquid impervious conductive plastic sheet, sealing a separator over a central opening formed in a frame of liquid impervious insulating material at least the exterior surface of which comprises a thermoplastic hot melt adhesive material, placing said frame over said sheet with said first cathode slurry in the opening in said frame with said separator thereon exposed, coating said separator with a layer of electrolyte, forming an anode layer over a central region of the surface of a second sheet of liquid impervious conductive plastic material, and placing said second sheet over said frame with the anode layer thereon in contact with the electrolyte on said separator.
Claim 9
Dependent Claim
172 words
In the method of manufacturing a thin, flat laminar battery, the steps of forming a first thin, dry patch anode layer over a central region of the surface of a first sheet of liquid impervious conductive plastic material, extruding a layer of wet slurry cathode material over a surface of said sheet opposite said dry patch anode, temporarily heat sealing a cellophane separator to one surface of a liquid impervious thermoplastic frame over an opening formed in said frame adapted to receive said cathode slurry layer, placing said frame in contact with said first sheet with said cathode slurry in registry with said opening and in contact with said separator, coating the exposed surface of said separator with gel electrolyte, forming a second thin, dry patch anode layer over a central region of the surface of a second sheet of liquid impervious conductive plastic material congruent with said first sheet, and placing said second sheet over said frame with said second anode patch in registry and in contact with said gel electrolyte.
Claim 10
Dependent Claim
172 words
In the method of manufacturing a thin, flat laminar battery, the steps of forming a first thin, dry patch anode layer over a central region of the surface of a first sheet of liquid impervious conductive plastic material, extruding a layer of wet slurry cathode material over a surface of said sheet opposite said dry patch anode, temporarily heat sealing a cellophane separator to one surface of a liquid impervious thermoplastic frame over an opening formed in said frame adapted to receive said cathode slurry layer, placing said frame in contact with said first sheet with said cathode slurry in registry with said opening and in contact with said separator, coating the exposed surface of said separator with gel electrolyte, forming a second thin, dry patch anode layer over a central region of the surface of a second sheet of liquid impervious conductive plastic material congruent with said first sheet, and placing said second sheet over said frame with said second anode patch in registry and in contact with said gel electrolyte.
Claim 11
Dependent Claim
145 words
In a method of making a thin, flat laminar battery, the steps of extruding a first wet slurry cathode layer over a region of the surface within the periphery of a liquid impervious conductive plastic sheet, heat sealing a cellophane separator over a central opening formed in a frame of liquid impervious insulating material at least the exterior surface of which comprises a thermoplastic hot melt adhesive material, placing said frame over said sheet with said first cathode slurry in registry with the opening in said frame and in contact with said separator, coating said separator with a layer of gel electrolyte, forming a dry patch anode layer over a central region of the surface of a sheet of liquid impervious conductive plastic material, and placing said sheet over said frame with the anode layer thereon in contact with the gel electrolyte on said separator.
Claim 12
Dependent Claim
145 words
In a method of making a thin, flat laminar battery, the steps of extruding a first wet slurry cathode layer over a region of the surface within the periphery of a liquid impervious conductive plastic sheet, heat sealing a cellophane separator over a central opening formed in a frame of liquid impervious insulating material at least the exterior surface of which comprises a thermoplastic hot melt adhesive material, placing said frame over said sheet with said first cathode slurry in registry with the opening in said frame and in contact with said separator, coating said separator with a layer of gel electrolyte, forming a dry patch anode layer over a central region of the surface of a sheet of liquid impervious conductive plastic material, and placing said sheet over said frame with the anode layer thereon in contact with the gel electrolyte on said separator.
Claim 13
Dependent Claim
142 words
In a method of making a thin, flat laminar battery, the steps of extruding a first wet slurry cathode layer over a region of the surface within the periphery of a first liquid impervious conductive plastic sheet, sealing a separator over a central opening formed in a frame of liquid impervious insulating material at least the exterior surface of which comprises a thermoplastic hot melt adhesive material, placing said frame over said sheet with said first cathode slurry in registry with the opening in said frame and in contact with said separator, coating said separator with a layer of electrolyte, forming an anode layer over a central region of the surface of a second sheet of liquid impervious conductive plastic material, and placing said second sheet over said frame with the anode layer thereon in contact with the electrolyte on said separator.
Claim 14
Dependent Claim
142 words
In a method of making a thin, flat laminar battery, the steps of extruding a first wet slurry cathode layer over a region of the surface within the periphery of a first liquid impervious conductive plastic sheet, sealing a separator over a central opening formed in a frame of liquid impervious insulating material at least the exterior surface of which comprises a thermoplastic hot melt adhesive material, placing said frame over said sheet with said first cathode slurry in registry with the opening in said frame and in contact with said separator, coating said separator with a layer of electrolyte, forming an anode layer over a central region of the surface of a second sheet of liquid impervious conductive plastic material, and placing said second sheet over said frame with the anode layer thereon in contact with the electrolyte on said separator.
Claim 15
Dependent Claim
167 words
In the method of manufacturing a thin, flat laminar battery, the steps of extruding a layer of wet slurry cathode material over a central region of a first surface of a first sheet of liquid impervious conductive plastic material having a first thin, dry patch anode layer on a central region of a second surface of said sheet opposite said first surface, temporarily heat sealing a cellophane separator to one surface of a liquid impervious thermoplastic frame over an opening formed in said frame adapted to receive said cathode slurry layer, placing said frame in contact with said first sheet with said cathode slurry in registry with said opening and in contact with said separator, coating the exposed surface of said separator with gel electrolyte, placing a second sheet of liquid impervious conductive plastic material having a second thin, dry patch anode layer on a central region of its surface over said frame with said second anode patch in registry and in contact with said gel electrolyte.
Claim 16
Dependent Claim
167 words
In the method of manufacturing a thin, flat laminar battery, the steps of extruding a layer of wet slurry cathode material over a central region of a first surface of a first sheet of liquid impervious conductive plastic material having a first thin, dry patch anode layer on a central region of a second surface of said sheet opposite said first surface, temporarily heat sealing a cellophane separator to one surface of a liquid impervious thermoplastic frame over an opening formed in said frame adapted to receive said cathode slurry layer, placing said frame in contact with said first sheet with said cathode slurry in registry with said opening and in contact with said separator, coating the exposed surface of said separator with gel electrolyte, placing a second sheet of liquid impervious conductive plastic material having a second thin, dry patch anode layer on a central region of its surface over said frame with said second anode patch in registry and in contact with said gel electrolyte.
Claim 17
Dependent Claim
142 words
In a method of making a thin, flat laminar battery, the steps of extruding a first wet slurry cathode layer over a region of the surface within the periphery of a liquid impervious conductive plastic sheet, heat sealing a cellophane separator over a central opening formed in a frame of liquid impervious insulating material at least the exterior surface of which comprises a thermoplastic hot melt adhesive material, placing said frame over said sheet with said first cathode slurry in registry with the opening in said frame and in contact with said separator, coating said separator with a layer of gel electrolyte, and placing a sheet of liquid impervious conductive plastic material having a dry patch anode layer on a central region of its surface over said frame with the anode layer thereon in contact with the gel electrolyte on said separator.
Claim 18
Dependent Claim
142 words
In a method of making a thin, flat laminar battery, the steps of extruding a first wet slurry cathode layer over a region of the surface within the periphery of a liquid impervious conductive plastic sheet, heat sealing a cellophane separator over a central opening formed in a frame of liquid impervious insulating material at least the exterior surface of which comprises a thermoplastic hot melt adhesive material, placing said frame over said sheet with said first cathode slurry in registry with the opening in said frame and in contact with said separator, coating said separator with a layer of gel electrolyte, and placing a sheet of liquid impervious conductive plastic material having a dry patch anode layer on a central region of its surface over said frame with the anode layer thereon in contact with the gel electrolyte on said separator.
Claim 19
Dependent Claim
138 words
In a method of making a thin, flat laminar battery, the steps of extruding a first wet slurry cathode layer over a region of the surface within the periphery of a first liquid impervious conductive plastic sheet, sealing a separator over a central opening formed in a frame of liquid impervious insulating material at least the exterior surface of which comprises a thermoplastic hot melt adhesive material, placing said frame over said sheet with said first cathode slurry in registry with the opening in said frame and in contact with said separator, coating said separator with a layer of electrolyte, and placing a second sheet of liquid impervious conductive plastic material having an anode layer on a central region of its surface over said frame with the anode layer thereon in contact with the electrolyte on said separator.
Claim 20
Dependent Claim
138 words
In a method of making a thin, flat laminar battery, the steps of extruding a first wet slurry cathode layer over a region of the surface within the periphery of a first liquid impervious conductive plastic sheet, sealing a separator over a central opening formed in a frame of liquid impervious insulating material at least the exterior surface of which comprises a thermoplastic hot melt adhesive material, placing said frame over said sheet with said first cathode slurry in registry with the opening in said frame and in contact with said separator, coating said separator with a layer of electrolyte, and placing a second sheet of liquid impervious conductive plastic material having an anode layer on a central region of its surface over said frame with the anode layer thereon in contact with the electrolyte on said separator.
Claim 21
Dependent Claim
139 words
In a method of making a thin, flat laminar battery, the steps of extruding a first wet slurry cathode layer over a region of the surface within the periphery of a liquid impervious conductive plastic sheet, placing a frame of liquid impervious insulating material at least the exterior surface of which comprises a thermoplastic hot melt adhesive material and having a cellophane separator temporarily bonded over said opening over said sheet with said first cathode slurry in registry with the opening in said frame and in contact with said separator, coating said separator with a layer of gel electrolyte, and placing a sheet of liquid impervious conductive plastic material having a dry patch anode layer on a central region of its surface over said frame with the anode layer thereon in contact with the gel electrolyte on said separator.
Claim 22
Dependent Claim
139 words
In a method of making a thin, flat laminar battery, the steps of extruding a first wet slurry cathode layer over a region of the surface within the periphery of a liquid impervious conductive plastic sheet, placing a frame of liquid impervious insulating material at least the exterior surface of which comprises a thermoplastic hot melt adhesive material and having a cellophane separator temporarily bonded over said opening over said sheet with said first cathode slurry in registry with the opening in said frame and in contact with said separator, coating said separator with a layer of gel electrolyte, and placing a sheet of liquid impervious conductive plastic material having a dry patch anode layer on a central region of its surface over said frame with the anode layer thereon in contact with the gel electrolyte on said separator.
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) | 1982-02-05 | 1982-08-07 | 1983-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-05 | 1986-08-07 | 1987-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-05 | 1990-08-07 | 1991-02-06 | $7700.00 | Window Closed / Lapsed |