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US4074019A
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Cell having fluorinated carbon cathode and solvated alkali metal salt electrolyte
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1977-03-01
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Granted: 1978-02-14
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Expires: 1997-03-01
Abstract
Abstract A novel electrochemical cell is disclosed utilizing an alkali metal anode, a fluorinated carbon cathode and a solid electrolyte consisting essentially of one or more solvated metal-alkali metal-halogen compounds of the formula ZMXn wherein Z is an alkali metal, M is a metal selected from the group consisting of Zn, Cd, B, Al, Ga, In, Tl, Sn (stannous), P and As, wherein X is one or more halogens selected from the group consisting of chlorine, fluorine, bromine and iodine, and wherein n is a numerical value equal to one plus the valence of the metal M. Preferred are the cells wherein the anode is lithium, the cathode is C2F, and the electrolyte consists essentially of solid solvated metal-lithium-halogen salt.
Inventors
- 👤 Paul A. Malachesky
- 👤 Gerald H. Newman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:27
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
125 words
A current producing cell comprising: a. a cathode having a compound formed of fluorine and carbon; b. an alkali metal-containing anode; and c. a solid electrolyte consisting essentially of one or more solvated compounds of the formula: ZMX.sub.n wherein Z is an alkali metal, wherein M is a metal selected from the group consisting of Zn, Cd, B, Al, Ga, In, Tl, Sn (stannous), P and As, wherein X is one or more halogens selected from the group consisting of chlorine, fluorine, bromine and iodine, and wherein n is a numerical value equal to one plus the valence of the metal M, said compounds having been solvated with one or more solvents selected from the group consisting of unsubstituted and inertly substituted monoethers and polyethers.
Claim 2
Dependent Claim
125 words
A current producing cell comprising: a. a cathode having a compound formed of fluorine and carbon; b. an alkali metal-containing anode; and c. a solid electrolyte consisting essentially of one or more solvated compounds of the formula: ZMX.sub.n wherein Z is an alkali metal, wherein M is a metal selected from the group consisting of Zn, Cd, B, Al, Ga, In, Tl, Sn (stannous), P and As, wherein X is one or more halogens selected from the group consisting of chlorine, fluorine, bromine and iodine, and wherein n is a numerical value equal to one plus the valence of the metal M, said compounds having been solvated with one or more solvents selected from the group consisting of unsubstituted and inertly substituted monoethers and polyethers.
Claim 3
Dependent Claim
31 words
The cell of claim 1 wherein the anode is substantially sodium, lithium, potassium, or alloys containing these, and wherein Z is selected from the group consisting of sodium, lithium and potassium.
Claim 4
Dependent Claim
19 words
The cell of claim 2 wherein M is selected from the group consisting of B, Al, P and As.
Claim 5
Dependent Claim
13 words
The cell of claim 1 wherein the cathode is fluorinated crystalline carbon material.
Claim 6
Dependent Claim
31 words
The cell of claim 4 wherein the anode is substantially sodium, lithium, potassium, or alloys containing these, and wherein Z is selected from the group consisting of sodium, lithium and potassium.
Claim 7
Dependent Claim
19 words
The cell of claim 5 wherein M is selected from the group consisting of B, Al, P and As.
Claim 8
Dependent Claim
35 words
The cell of claim 6 wherein the cathode is CF 2 , wherein the anode is substantially lithium, or a lithium alloy, and wherein X is selected from the group consisting of chlorine and fluorine.
Claim 9
Dependent Claim
41 words
An electric cell comprising: a. a cathode containing a cathode-active material formed by reacting graphite with chlorine trifluoride in the presence of HF; b. a lithium metal-containing anode; and c. a solid electrolyte consisting essentially of ether solvated LiAsF 6 .
Claim 10
Dependent Claim
41 words
An electric cell comprising: a. a cathode containing a cathode-active material formed by reacting graphite with chlorine trifluoride in the presence of HF; b. a lithium metal-containing anode; and c. a solid electrolyte consisting essentially of ether solvated LiAsF 6 .
Claim 11
Dependent Claim
14 words
The cell of claim 8 wherein the LiAsF 6 has been solvated with dimethoxyethane.
Claim 12
Independent Claim
148 words
A method of operating a current-producing cell, comprising: drawing a current from said cell at a temperature below the melting point of the electrolyte of said cell wherein said cell comprises a cathode having a compound formed of fluorine and carbon, an alkali metal-containing anode, and a solid electrolyte consisting essentially of one or more solvated compounds of the formula: ZMX.sub.n wherein Z is an alkali metal, wherein M is a metal selected from the group consisting of Zn, Cd, B, Al, Ga, In, Tl, Sn (stannous), P and As, wherein X is one or more halogens selected from the group consisting of chlorine, fluorine, bromine and iodine, and wherein n is a numerical value equal to one plus the valence of the metal M, said compounds having been solvated with one or more solvents selected from the group consisting of unsubstituted and inertly substituted monoethers and polyethers.
Claim 13
Independent Claim
148 words
A method of operating a current-producing cell, comprising: drawing a current from said cell at a temperature below the melting point of the electrolyte of said cell wherein said cell comprises a cathode having a compound formed of fluorine and carbon, an alkali metal-containing anode, and a solid electrolyte consisting essentially of one or more solvated compounds of the formula: ZMX.sub.n wherein Z is an alkali metal, wherein M is a metal selected from the group consisting of Zn, Cd, B, Al, Ga, In, Tl, Sn (stannous), P and As, wherein X is one or more halogens selected from the group consisting of chlorine, fluorine, bromine and iodine, and wherein n is a numerical value equal to one plus the valence of the metal M, said compounds having been solvated with one or more solvents selected from the group consisting of unsubstituted and inertly substituted monoethers and polyethers.
Claim 14
Dependent Claim
47 words
The method of claim 10 wherein Z is selected from the group consisting of sodium, lithium and potassium, wherein M is selected from the group consisting of B, Al, P and As, and wherein X is a halogen selected from the group consisting of chlorine and fluorine.
Claim 15
Dependent Claim
20 words
The method of claim 11 wherein the anode is substantially lithium or a lithium alloy, and wherein Z is lithium.
Claim 16
Dependent Claim
17 words
The method of claim 12 wherein the solid electrolyte consists essentially of ether solvated LiAsF 6 .
References Cited (Backward Citations)
US4009052A
Cited
US3977900A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-13 | 1981-08-15 | 1982-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-13 | 1985-08-15 | 1986-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-13 | 1989-08-15 | 1990-02-14 | $7700.00 | Window Closed / Lapsed |