US4317873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric cell with a non-aqueous electrolyte
Assignee: Alcatel Lucent SAS
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Filing: 1980-08-04
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Granted: 1982-03-02
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Expires: 2000-08-04
Abstract
Abstract An electric cell with a non-aqueous electrolyte. The cell includes a positive electrode whose active material is suitable for inserting the negative active material dynamically, a negative electrode whose active material includes at least one alkali metal, and an electrolyte, wherein said positive electrode includes at least one compound whose general formula is MX 4 R n T p , where M represents an element chosen from among silicon, germanium, tin and lead, X represents sulphur, selenium or tellurium, R and T represent an element chosen from among copper, silver, manganese, iron, cobalt and nickel, n being greater than or equal to 0 and less than or equal to 4, p being greater than or equal to 0 and less than or equal to 2. The invention is used in connection with button type electric cells.
Inventors
- 👤 Alain Le Mehaute
- 👤 Jean Rouxel
- 👤 Annie Le Blanc-Soreau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:41
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/58; H01M4/581; C; C01; C01G; C01G1/00; C01G1/12; H01M10/00; H01M10/05; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
168 words
An electric cell of the type which includes a positive electrode whose active material is suitable for inserting the negative active material dynamically, a negative electrode whose active material includes at least one alkali metal, and an electrolyte, wherein said positive electrode comprises at least one compound whose general formula is MX 4 R n T p , where M represents an element chosen from among silicon, germanium, tin and lead, X represents sulphur, selenium or tellurium, R and T represent an element chosen from among copper, silver, manganese, iron, cobalt and nickel, n being greater than or equal to 0 and less than or equal to 4, p being greater than or equal to 0 and less than or equal to 2, wherein said compound is chosen from the group which consists of Fe 2 SiS 4 , Fe 2 GeS 4 , Cu 2 Fe 2 SnS 4 , Fe 2 SnS 4 , Cu 2 MnSnS 4 , Cu 4 SnS 4 and mixtures thereof.
Claim 2
Dependent Claim
168 words
An electric cell of the type which includes a positive electrode whose active material is suitable for inserting the negative active material dynamically, a negative electrode whose active material includes at least one alkali metal, and an electrolyte, wherein said positive electrode comprises at least one compound whose general formula is MX 4 R n T p , where M represents an element chosen from among silicon, germanium, tin and lead, X represents sulphur, selenium or tellurium, R and T represent an element chosen from among copper, silver, manganese, iron, cobalt and nickel, n being greater than or equal to 0 and less than or equal to 4, p being greater than or equal to 0 and less than or equal to 2, wherein said compound is chosen from the group which consists of Fe 2 SiS 4 , Fe 2 GeS 4 , Cu 2 Fe 2 SnS 4 , Fe 2 SnS 4 , Cu 2 MnSnS 4 , Cu 4 SnS 4 and mixtures thereof.
Claim 3
Dependent Claim
16 words
An electric cell according to claim 1, wherein said compound is disposed on a conductive support.
Claim 4
Dependent Claim
32 words
An electric cell according to claim 1, wherein said compound is mixed with a conductive powder which includes a substance chosen from the group consisting of acetylene black, graphite and mixtures thereof.
Claim 5
Dependent Claim
13 words
An electric cell according to claim 1, wherein said alkali metal is lithium.
Claim 6
Dependent Claim
18 words
An electric cell according to claim 4, wherein the negative active material is deposited on a conductive support.
Claim 7
Dependent Claim
18 words
An electric cell according to claim 1, wherein said electrolyte includes an ionic carrier dissolved in a solvent.
Claim 8
Dependent Claim
24 words
An electric cell according to claim 6, wherein the cation of said ionic carrier is the cation of the element of the negative electrode.
Claim 9
Dependent Claim
32 words
An electric cell according to claim 7, wherein the anion of said ionic carrier is selected from the group consisting of a halide, a sulphide, a nitrate a perchlorate, and a phosphohalide.
Claim 10
Dependent Claim
25 words
An electric cell according to claim 6, wherein said solvent is chosen from the group which consists of propylene carbonate dioxolane, dimethoxyethane, nitromethane, and tetrahydrofurane.
Claim 11
Dependent Claim
13 words
An electric cell according to claim 6, wherein said solvent is an ether.
Claim 12
Dependent Claim
14 words
An electric cell according to claim 6 wherein said solvent is a cyclic ester.
Claim 13
Dependent Claim
20 words
An electric cell according to claim 6, wherein said solvent comprises a mixture of an ether and a cyclic ester.
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) | 1985-03-01 | 1985-08-31 | 1986-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-03-01 | 1989-08-31 | 1990-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-03-01 | 1993-08-31 | 1994-03-02 | $7700.00 | Window Closed / Lapsed |