US4452872A
Expired / Lapsed
US
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Electrochemical cell
Assignee: Yardney Technical Products Inc
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Filing: 1983-11-01
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Granted: 1984-06-05
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Expires: 2003-11-01
Abstract
Abstract A primary electrochemical cell having an oxidizable active anode material, a cathode current collector, and an electrolytic solution comprising a liquid cathode material and an electrolyte solute dissolved therein. The cathode current collector includes a catalytic material comprising a mixture of carbon and a polymer which is the product of the reaction of a transition metal salt such as ferric acetylacetonate or colbaltic acetylacetonate with tetracyanoethylene.
Inventors
- 👤 Keith A. Klinedinst
- 👤 Richard A. Gary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:03
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; H01M4/90; H01M4/9008; H01M6/00; H01M6/14; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
71 words
An electrochemical cell comprising an oxidizable active anode material; a cathode current collector including a catalytic material for reducing the liquid cathode material comprising a mixture of carbon and a polymer which is the product of the reaction of a transition metal salt with tetracyanoethylene; and an electrolytic solution, in contact with the anode material and cathode current collector, comprising a reducible liquid cathode material and an electrolyte solute dissolved therein.
Claim 2
Dependent Claim
71 words
An electrochemical cell comprising an oxidizable active anode material; a cathode current collector including a catalytic material for reducing the liquid cathode material comprising a mixture of carbon and a polymer which is the product of the reaction of a transition metal salt with tetracyanoethylene; and an electrolytic solution, in contact with the anode material and cathode current collector, comprising a reducible liquid cathode material and an electrolyte solute dissolved therein.
Claim 3
Dependent Claim
25 words
An electrochemical cell in accordance with claim 1 wherein said transition metal salt has a cation selected from the group consisting of iron and cobalt.
Claim 4
Dependent Claim
27 words
A electrochemical cell in accordance with claim 2 wherein said transition metal salt has an anion selected from the group consisting of acetylacetonate, acetate, and the halides.
Claim 5
Dependent Claim
25 words
An electrochemical cell in accordance with claim 3 wherein said transition metal salt is selected from the group consisting of ferric acetylacetonate and cobaltic acetylacetonate.
Claim 6
Dependent Claim
25 words
An electrochemical cell in accordance with claim 4 wherein said mixture of carbon and said polymer contain from 1 to 10 percent polymer by weight.
Claim 7
Dependent Claim
23 words
An electrochemical cell in accordance with claim 5 wherein said mixture of carbon and said polymer containing about 5 percent polymer by weight.
Claim 8
Dependent Claim
26 words
An electrochemical cell in accordance with claim 1 wherein the oxidizable anode material is selected from the group consisting of alkali metals and alkaline earth metals.
Claim 9
Dependent Claim
32 words
An electrochemical cell in accordance with claim 7 wherein the reducible liquid cathode material is selected from the group consisting of fluid oxyhalides, fluid non-metallic oxides, fluid non-metallic halides, and mixtures thereof.
Claim 10
Dependent Claim
25 words
An electrochemical cell in accordance with claim 8 wherein said transition metal salt has a cation selected from the group consisting of iron and cobalt.
Claim 11
Dependent Claim
27 words
An electrochemical cell in accordance with claim 9 wherein said transition metal salt has an anion selected from the group consisting of acetylacetonate, acetate, and the halides.
Claim 12
Dependent Claim
25 words
An electrochemical cell in accordance with claim 10 wherein said transition metal salt is selected from the group consisting of ferric acetylacetonate and cobaltic acetylacetonate.
Claim 13
Dependent Claim
25 words
An electrochemical cell in accordance with claim 11 wherein said mixture of carbon and said polymer contain from 1 to 10 percent polymer by weight.
Claim 14
Dependent Claim
23 words
An electrochemical cell in accordance with claim 12 wherein said mixture of carbon and said polymer containing about 5 percent polymer by weight.
Claim 15
Dependent Claim
25 words
An electrochemical cell in accordance with claim 11 wherein the oxidizable anode material comprises lithium metal; and the reducible liquid cathode material comprises thionyl chloride.
Claim 16
Dependent Claim
16 words
An electrochemical cell in accordance with claim 14 wherein said transition metal salt is ferric acetylacetonate.
Claim 17
Dependent Claim
25 words
An electrochemical cell in accordance with claim 15 wherein said cathode current collector includes a layer of said mixture adherent to an inert, electrically-conductive substrate.
Claim 18
Dependent Claim
26 words
An electrochemical cell in accordance with claim 11 wherein said mixture comprises an intimate mixture of said polymer and carbon black and includes a thermoplastic polymer.
Claim 19
Dependent Claim
21 words
An electrochemical cell in accordance with claim 17 wherein said catalytic material comprises a composite material of said polymer and carbon.
Claim 20
Dependent Claim
24 words
An electrochemical cell in accordance with claim 18 wherein the composite material of said polymer and carbon comprises said polymer supported on carbon particles.
References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1987-06-05 | 1987-12-05 | 1988-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-05 | 1991-12-05 | 1992-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-05 | 1995-12-05 | 1996-06-05 | $7700.00 | Window Closed / Lapsed |