US4621035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lithium batteries with laminar anodes
Assignee: Polaroid Corp
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Filing: 1982-01-20
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Granted: 1986-11-04
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Expires: 2002-01-20
Abstract
Abstract Laminar electrode subassemblies comprising a lithium layer having one surface consisting essentially of metallic lithium adhered to a conductive plastic substrate, and a method of making such subassemblies in which a web of lithium foil having at least one freshly exposed surface is laminated directly to a conductive plastic substrate without an intermediate layer of conductive plastic adhesive.
Inventors
- 👤 Alan H. Bruder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:28
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M4/66; H01M4/661; B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; H01M4/06; H01M4/08; H01M4/12; H01M4/668; H01M6/00; H01M6/14; H01M6/16; H01M6/42; H01M6/46; H01M6/48
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
91 words
A laminar electrical cell, comprising an anode, a cathode, and an electrolyte permeable separator beween said anode and said cathode, said anode consisting essentially of a layer of lithium having at least one surface of unreacted lithium metal in direct contact with and adhered to a layer of conductive plastic with no intermediate adhesive promoting adjuncts, and said cathode comprising a slurry of MnO 2 and carbon particles in a solution of a lithium salt in an organic solvent, said solution permeating said separator and being in contact with said lithium.
Claim 2
Dependent Claim
91 words
A laminar electrical cell, comprising an anode, a cathode, and an electrolyte permeable separator beween said anode and said cathode, said anode consisting essentially of a layer of lithium having at least one surface of unreacted lithium metal in direct contact with and adhered to a layer of conductive plastic with no intermediate adhesive promoting adjuncts, and said cathode comprising a slurry of MnO 2 and carbon particles in a solution of a lithium salt in an organic solvent, said solution permeating said separator and being in contact with said lithium.
Claim 3
Dependent Claim
42 words
In a lithium battery, an anode consisting essentially of a thin sheet of lithium having at least one surface of unreacted lithium metal in direct contact with and adhering to a thin sheet of conductive plastic with no intermediate adhesive promoting adjuncts.
Claim 4
Dependent Claim
42 words
In a lithium battery, an anode consisting essentially of a thin sheet of lithium having at least one surface of unreacted lithium metal in direct contact with and adhering to a thin sheet of conductive plastic with no intermediate adhesive promoting adjuncts.
Claim 5
Dependent Claim
76 words
A lithium battery, comprising an anode consisting essentially of a thin sheet of lithium having at least one surface of unreacted lithium metal adhered to a thin sheet of conductive plastic with no intermediate adhesive promoting adjuncts, a cathode consisting essentially of a wet anhydrous slurry of Mno 2 and carbon particles in a solution of a lithium slat in an organic solvent, and a separator permeated by said solvent between said cathode and said anode.
Claim 6
Dependent Claim
76 words
A lithium battery, comprising an anode consisting essentially of a thin sheet of lithium having at least one surface of unreacted lithium metal adhered to a thin sheet of conductive plastic with no intermediate adhesive promoting adjuncts, a cathode consisting essentially of a wet anhydrous slurry of Mno 2 and carbon particles in a solution of a lithium slat in an organic solvent, and a separator permeated by said solvent between said cathode and said anode.
Claim 7
Dependent Claim
44 words
The battery of claim 3, in which said lithium salt is LiAsF 6 , and in which said organic solvent consists essentially of from 30 to 100 parts by weight of propylene carbonate and from 0 to 70 parts by weight of 1,2 dimethoxyethane.
Claim 8
Dependent Claim
65 words
In a lithium battery, an anode consisting essentially of a layer of lithium having a first major surface and a second major surface opposite said first surface in direct contact with and adhered to a layer of a dispersion of carbon particles in a copolymer of ethylene and vinyl acetate with no intermediate adhesive promoting adjuncts, said second surface consisting essentially of unreacted lithium metal.
Claim 9
Dependent Claim
65 words
In a lithium battery, an anode consisting essentially of a layer of lithium having a first major surface and a second major surface opposite said first surface in direct contact with and adhered to a layer of a dispersion of carbon particles in a copolymer of ethylene and vinyl acetate with no intermediate adhesive promoting adjuncts, said second surface consisting essentially of unreacted lithium metal.
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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) | 1989-11-03 | 1990-05-05 | 1990-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-03 | 1994-05-05 | 1994-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-03 | 1998-05-05 | 1998-11-04 | $7700.00 | Window Closed / Lapsed |