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US4142028A
Expired / Lapsed
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Nonaqueous cells utilizing aluminum, magnesium, and calcium anodes in amide-based electrolytes
Assignee: Edgewell Personal Care Brands LLC
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Filing: 1977-12-23
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Granted: 1979-02-27
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Expires: 1997-12-23
Abstract
Abstract A nonaqueous cell employing an anode of aluminum, magnesium, calcium or their alloys in which at least the surface of the anode is amalgamated, a solid cathode and an electrolyte comprising a salt such as lithium or ammonium salt dissolved in an aprotic alkylated amide solvent.
Inventors
- 👤 Violeta Z. Leger
- 👤 George E. Blomgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:12
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14; H01M6/16; H01M6/162; H01M4/00; H01M4/02; H01M4/36; H01M4/38; H01M4/46; H01M6/166
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
87 words
A nonaqueous cell comprising an anode selected from the group consisting of aluminum, magnesium, calcium and their alloys, and wherein at least the surface of the anode is amalgamated; a solid cathode selected from the group consisting of MnO 2 , CuF 2 , NiF 2 , V 2 O 5 , Ag 2 O, HgO, Cu 2 O, CuO, PbO 2 , PbO, and Fe 2 O 3 ; and an electrolyte solution comprising a salt dissolved in a nonaqueous solvent of an aprotic alkylated amide.
Claim 2
Dependent Claim
87 words
A nonaqueous cell comprising an anode selected from the group consisting of aluminum, magnesium, calcium and their alloys, and wherein at least the surface of the anode is amalgamated; a solid cathode selected from the group consisting of MnO 2 , CuF 2 , NiF 2 , V 2 O 5 , Ag 2 O, HgO, Cu 2 O, CuO, PbO 2 , PbO, and Fe 2 O 3 ; and an electrolyte solution comprising a salt dissolved in a nonaqueous solvent of an aprotic alkylated amide.
Claim 3
Dependent Claim
20 words
The nonaqueous cell of claim 1 wherein the salt is selected from the group consisting of lithium and ammonium salts.
Claim 4
Dependent Claim
13 words
The nonaqueous cell of claim 1 wherein the electrolyte contains an organic cosolvent.
Claim 5
Dependent Claim
25 words
The nonaqueous cell of claim 1 wherein the aprotic alkylated amide is selected from the group consisting of dimethyl formamide, dimethyl acetamide and N-methyl pyrrolidone.
Claim 6
Dependent Claim
62 words
The nonaqueous cell of claim 1 wherein the anode is amalgamated aluminum or aluminum alloy and the cathode is selected from the group consisting of MnO 2 , CuF 2 , NiF 2 , V 2 O 5 , Ag 2 O, HgO, Cu 2 O, CuO, PbO 2 , PbO, (CF x ) n , and Fe 2 O 3 .
Claim 7
Dependent Claim
57 words
The nonaqueous cell of claim 1 wherein the anode is amalgamated magnesium or magnesium alloy and the cathode is selected from the group consisting of MnO 2 , CuF 2 , NiF 2 , V 2 O 5 , Ag 2 O, HgO, Cu 2 O, CuO, PbO 2 , PbO, and Fe 2 O 3 .
Claim 8
Dependent Claim
61 words
The nonaqueous cell of claim 1 wherein the anode is amalgamated calcium or calcium alloy and the cathode is selected from the group consisting of MnO 2 , V 2 O 5 , Ag 2 O, HgO, Cu 2 O, CuO, PbO 2 , PbO, (CF x ) n , Fe 2 O 3 , CuF 2 and NiF 2 .
Claim 9
Dependent Claim
29 words
The nonaqueous cell of claim 1 wherein the anode is amalgamated aluminum or aluminun alloy, the cathode is MnO 2 , and the electrolyte is LiBF 4 -dimethyl formamide.
Claim 10
Dependent Claim
31 words
The nonaqueous cell of claim 1 wherein the anode is amalgamated aluminum or aluminum alloy, the cathode is (CF x ) n , and the electrolyte is LiBF 4 -dimethyl formamide.
Claim 11
Dependent Claim
31 words
The nonaqueous cell of claim 1 wherein the anode is amalgamated aluminum or aluminum alloy, the cathode is (CF x ) n , and the electrolyte is LiBF 4 -dimethyl formamideacetonitrile.
Claim 12
Dependent Claim
29 words
The nonaqueous cell of claim 1 wherein the anode is amalgamated magnesium or magnesium alloy, the cathode is MnO 2 , and the electrolyte is LiBF 4 -dimethyl formamide.
Claim 13
Dependent Claim
31 words
The nonaqueous cell of claim 1 wherein the anode is amalgamated calcium or calcium alloy, the cathode is (CF x ) n , and the electrolyte is LiBF 4 -dimethyl formamide.
Claim 14
Dependent Claim
29 words
The nonaqueous cell of claim 1 wherein the anode is amalgamated calcium or calcium alloy, the cathode is MnO 2 , and the electrolyte is LiBF 4 -dimethyl formamide.
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) | 1982-02-26 | 1982-08-28 | 1983-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-26 | 1986-08-28 | 1987-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-26 | 1990-08-28 | 1991-02-27 | $7700.00 | Window Closed / Lapsed |