US4309491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric cell with a non-aqueous electrolyte
Assignee: Alcatel Lucent SAS
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Filing: 1980-08-26
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Granted: 1982-01-05
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Expires: 2000-08-26
Abstract
Abstract A secondary electric cell which includes: a non-aqueous electrolyte, a negative electrode whose active material includes at least one alkali metal in contact with the electrolyte, and a positive electrode whose active material is suitable for intercalating the active material of the negative electrode, wherein said positive electrode includes an active compound or solid solution whose general formula is M x X, R y X 3 where: M is an element chosen from lead and tin; R is an element chosen from bismuth and antimony; and X is an element chosen from sulphur and selenium, with x having a value lying between 0 and 1 (inclusive), and y having a value lying between 0 and 2 (inclusive). Such cells may be used in watches or pacemakers.
Inventors
- 👤 Raymond Brec
- 👤 Alain Le Mehaute
- 👤 Alain Dugast
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:44
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/05; H01M10/052; C; C01; C01G; C01G1/00; C01G1/12; H01M4/00; H01M4/02; H01M4/13; H01M4/136; H01M4/36; H01M4/58; H01M4/581; H01M4/5815; H01M6/00; H01M6/14; H01M10/056; H01M10/0561; H01M10/0562; H01M10/0564; H01M10/0566; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
129 words
A secondary electric cell which includes: a non-aqueous electrolyte; a negative electrode whose active material includes at least one alkali metal in contact with the electrolyte, and a positive electrode whose active material is suitable for intercalating the active material of the negative electrode, wherein said positive electrode includes an active compound or solid solution whose general formula is M x X, R y X 3 where: M is an element chosen from the group consisting of lead and tin; R is an element chosen from the group consisting of bismuth and antimony; and X is an element chosen from the group consisting of sulphur and selenium, with x having a value lying between 0 and 1 (inclusive), and y having a value lying between 0 and 2 (inclusive).
Claim 2
Dependent Claim
129 words
A secondary electric cell which includes: a non-aqueous electrolyte; a negative electrode whose active material includes at least one alkali metal in contact with the electrolyte, and a positive electrode whose active material is suitable for intercalating the active material of the negative electrode, wherein said positive electrode includes an active compound or solid solution whose general formula is M x X, R y X 3 where: M is an element chosen from the group consisting of lead and tin; R is an element chosen from the group consisting of bismuth and antimony; and X is an element chosen from the group consisting of sulphur and selenium, with x having a value lying between 0 and 1 (inclusive), and y having a value lying between 0 and 2 (inclusive).
Claim 3
Dependent Claim
28 words
An electric cell according to claim 1, wherein said active compound is chosen from the group consisting of PbBi 2 S 4 and SnBi 2 S 4 .
Claim 4
Dependent Claim
17 words
An electric cell according to claim 1, wherein said compound is associated with an electronically conductive support.
Claim 5
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 6
Dependent Claim
31 words
An electric cell according to claim 1, wherein said electrolyte includes at least one ionisable salt dissolved in a solvent in a concentration lying between 0.1 and 5 moles per liter.
Claim 7
Dependent Claim
53 words
An electric cell according to claim 5, wherein said ionisable salt has a general formula of LZ, wherein L is a cation chosen from the ions of the group consisting of alkali metals, and Z is an anion chosen from the group consisting of halides, sulphates, nitrates, phosphofluorides, thiocyanates, perchlorates, hexafluorophosphates and hydroborides.
Claim 8
Dependent Claim
33 words
An electric cell according to claim 5 or 6, wherein said solvent includes an organic compound chosen from the group consisting of esters, ethers, organic carbonates, organic lactones, amides, sulfoxides and mixtures thereof.
Claim 9
Dependent Claim
17 words
An electric cell according to claim 1, 2 or 3, wherein said electrolyte is a solid electrolyte.
Claim 10
Dependent Claim
17 words
An electric cell according to claim 1, 2 or 3, wherein said electrolyte is a molten salt.
Claim 11
Dependent Claim
22 words
An electric cell according to claim 8, wherein said solid electrolyte comprises beta alumina fitted to the metal of the negative electrode.
Claim 12
Dependent Claim
17 words
An electric cell according to claim 9, wherein said molten salt comprises at least one alkali halide.
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) | 1985-01-04 | 1985-07-06 | 1986-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-04 | 1989-07-06 | 1990-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-04 | 1993-07-06 | 1994-01-05 | $7700.00 | Window Closed / Lapsed |