US4409303A
Expired / Lapsed
US
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Catalytic cathode for primary and secondary fluid cathode depolarized cells
Assignee: Duracell Inc USA
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Filing: 1982-03-04
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Granted: 1983-10-11
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Expires: 2002-03-04
Abstract
Abstract A fluid cathode depolarized cell having a catalytic cathode comprised of a graphite intercalated metal halide such as CuCl 2 , CoCl 2 , FeCl 3 and SbF 5 .
Inventors
- 👤 William L. Bowden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:08
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/05; H01M10/056; H01M10/0561; H01M10/0563; H01M4/00; H01M4/02; H01M4/36; H01M4/58; H01M4/582; H01M4/583; H01M4/587; H01M4/86; H01M4/90; H01M6/00; H01M6/24; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
31 words
A non-aqueous electrochemical cell comprising an active metal anode, an electrolyte salt dissolved in a fluid cathode depolarizer and a catalytic cathode comprised of at least one graphite intercalated metal halide.
Claim 2
Dependent Claim
31 words
A non-aqueous electrochemical cell comprising an active metal anode, an electrolyte salt dissolved in a fluid cathode depolarizer and a catalytic cathode comprised of at least one graphite intercalated metal halide.
Claim 3
Dependent Claim
28 words
The cell of claim 1 wherein said metal halide is selected from the group consisting of CoCl 2 , CuCl 2 , FeCl 3 and SbF 5 .
Claim 4
Dependent Claim
30 words
The cell of claims 1 or 2 wherein said fluid cathode depolarizer is selected from the group consisting of fluid oxyhalides, non metallic oxides, non metallic halides and mixtures thereof.
Claim 5
Dependent Claim
27 words
The cell of claim 2 wherein said active metal anode is comprised of a member of the group consisting of Li, Na, K, Ca, Mg, and Al.
Claim 6
Dependent Claim
22 words
The cell of claim 4 wherein fluid cathode depolarizer is selected from the group consisting of SOCl 2 and SO 2 .
Claim 7
Dependent Claim
14 words
The cell of claim 5 wherein said fluid cathode depolarizer is SO 2 .
Claim 8
Dependent Claim
43 words
A rechargeable inorganic non-aqueous electrochemical cell comprising a lithium anode, a fluid cathode depolarizer/electrolyte solvent consisting essentially of SO 2 , an electrolyte salt soluble in said SO 2 , and a catalytic cathode comprised of at least one graphite intercalated metal halide.
Claim 9
Dependent Claim
43 words
A rechargeable inorganic non-aqueous electrochemical cell comprising a lithium anode, a fluid cathode depolarizer/electrolyte solvent consisting essentially of SO 2 , an electrolyte salt soluble in said SO 2 , and a catalytic cathode comprised of at least one graphite intercalated metal halide.
Claim 10
Dependent Claim
29 words
The cell of claim 7 wherein said metal halide is selected from the group consisting of CoCl 2 , CuCl 2 , FeCl 3 , and SbF 5 .
Claim 11
Dependent Claim
23 words
The cell of claims 7 or 8 wherein said electrolyte salt is selected from the group consisting of clovoborate and gallium halide salts.
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) | 1986-10-10 | 1987-04-11 | 1987-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-10 | 1991-04-11 | 1991-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-10 | 1995-04-11 | 1995-10-11 | $7700.00 | Window Closed / Lapsed |