US4098965A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flat batteries and method of making the same
Assignee: Polaroid Corp
•
Filing: 1977-06-27
•
Granted: 1978-07-04
•
Expires: 1997-06-27
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
2026-11-03 14:38
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: 5
Claim 1
Independent Claim
132 words
In a thin, flat laminar battery, a subassembly comprising a frame of liquid impervious insulating material at least the exterior surfaces of which comprise a thermoplastic hot melt adhesive material, means forming an opening within the periphery of said frame adapted to receive the components of an electrical cell, a cellophane separator wet with electrolyte on one surface of said frame covering said opening, a layer of gel electrolyte on said cellophane separator, a conductive plastic intercell connector over said cellophane separator and projecting beyond the boundaries thereof on all sides and thermally sealed to said frame, said intercell connector being within the boundaries of said frame, and a laminar zinc anode patch on said intercell connector in a region in registry with said opening and in contact with said gel electrolyte.
Claim 2
Dependent Claim
132 words
In a thin, flat laminar battery, a subassembly comprising a frame of liquid impervious insulating material at least the exterior surfaces of which comprise a thermoplastic hot melt adhesive material, means forming an opening within the periphery of said frame adapted to receive the components of an electrical cell, a cellophane separator wet with electrolyte on one surface of said frame covering said opening, a layer of gel electrolyte on said cellophane separator, a conductive plastic intercell connector over said cellophane separator and projecting beyond the boundaries thereof on all sides and thermally sealed to said frame, said intercell connector being within the boundaries of said frame, and a laminar zinc anode patch on said intercell connector in a region in registry with said opening and in contact with said gel electrolyte.
Claim 3
Dependent Claim
16 words
The assembly of claim 1, in which said frame comprises two congruent laminae heat sealed together.
Claim 4
Dependent Claim
20 words
The assembly of claim 1, in which said frame comprises a thin, flat monolithic loop of hot melt adhesive material.
Claim 5
Dependent Claim
26 words
The assembly of claim 2, in which said laminae each comprises a thin, flat loop of non-woven fibrous separator material filled with hot melt thermoplastic adhesive.
References Cited (Backward Citations)
US2521800A
Cited
US2843649A
Cited
US3563805A
Cited
US3674565A
Cited
US3770504A
Cited
US3907599A
Cited
US4007472A
Cited
US4028479A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-03 | 1982-01-02 | 1982-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-03 | 1986-01-02 | 1986-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-03 | 1990-01-02 | 1990-07-04 | $7700.00 | Window Closed / Lapsed |