Patent US4184017A successfully refreshed from Google Patents.
US4184017A
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Polyvalent metal anode containing cells
Assignee: Duracell Inc USA
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Filing: 1979-01-24
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Granted: 1980-01-15
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Expires: 1999-01-24
Abstract
Abstract An electrochemical cell containing a polyvalent film forming metal anode, a nucleophilic non-aqueous electrolyte solvent and a free radical forming carbon halide additive dissolved in said solvent.
Inventors
- 👤 G. Stephen Kelsey
- 👤 Arabinda N. Dey
- 👤 Per Bro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:48
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14; H01M6/16; H01M6/162; H01M6/168
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
46 words
An electrochemical cell comprising an anode comprised of a polyvalent film forming metal above hydrogen in the EMF series, an electrolyte salt, a non-aqueous nucleophilic electrolyte solvent and a carbon halide compound within said solvent and providing a solution of not more than 1 molar therewith.
Claim 2
Dependent Claim
46 words
An electrochemical cell comprising an anode comprised of a polyvalent film forming metal above hydrogen in the EMF series, an electrolyte salt, a non-aqueous nucleophilic electrolyte solvent and a carbon halide compound within said solvent and providing a solution of not more than 1 molar therewith.
Claim 3
Dependent Claim
14 words
The cell of claim 1 wherein said carbon halide compound is a carbon chloride.
Claim 4
Dependent Claim
26 words
The cell of claim 2 wherein said carbon chloride is selected from the group consisting of carbon tetrachloride, chloroform, methylene chloride, benzene hexachloride and methyl chloride.
Claim 5
Dependent Claim
12 words
The cell of claim 3 wherein said carbon chloride is carbon tetrachloride.
Claim 6
Dependent Claim
16 words
The cell of claim 4 wherein said solution has a molarity of less than 0.2 molar.
Claim 7
Dependent Claim
22 words
The cell of claim 1 wherein said polyvalent film forming metal is selected from the group consisting of magnesium, calcium and aluminum.
Claim 8
Dependent Claim
13 words
The cell of claim 6 wherein said polyvalent film forming metal is magnesium.
Claim 9
Dependent Claim
39 words
The cell of claim 1 wherein said non-aqueous nucleophilic electrolyte solvent is selected from the group consisting of acetonitrile and N,N-dimethyl formamide, tetrahydrofuran, dimethyl sulfite, dimethyl sulfoxide, N-nitrosodimethylamine, gamma-butyrolactone, methyl formate, butyl formate, dimethoxyethane, dimethyl carbonate and propylene carbonate.
Claim 10
Dependent Claim
12 words
The cell of claim 8 wherein said solvent is N, N-dimethyl formamide.
Claim 11
Dependent Claim
44 words
An electrochemical cell comprising an anode comprised of a member of the group consisting of magnesium, calcium and aluminum, an electrolyte salt, a non-aqueous nucleophilic electrolyte solvent and carbon tetrachloride within said solvent and providing a solution of not more than 1 molar therewith.
Claim 12
Dependent Claim
44 words
An electrochemical cell comprising an anode comprised of a member of the group consisting of magnesium, calcium and aluminum, an electrolyte salt, a non-aqueous nucleophilic electrolyte solvent and carbon tetrachloride within said solvent and providing a solution of not more than 1 molar therewith.
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) | 1983-01-14 | 1983-07-16 | 1984-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-14 | 1987-07-16 | 1988-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-14 | 1991-07-16 | 1992-01-15 | $7700.00 | Window Closed / Lapsed |