US4683181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrochemical generator with composite electrode
Assignee: Hydro-Québec
•
Filing: 1985-04-24
•
Granted: 1987-07-28
•
Expires: 2005-04-24
Abstract
Abstract Electrochemical generator, the electrolyte of which is made of a macromolecular material comprising a salt in solution and of which the positive electrode is a composite electrode which comprises as active material a metallic compound adapted to be reduced by the cation of the salt in solution by generating during this reduction new species which can include the zero oxidation degree metal, said generator being able to operate reversibly at ambient temperature.
Inventors
- 👤 Michel Armand
- 👤 Jean-Michel Chabagno
- 👤 Philippe Ricoux
- 👤 Guy Vassort
- 👤 Michel Gauthier
- 👤 Fernand Brochu
- 👤 Philippe Rigaud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:55
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/58; H01M10/00; H01M10/05; H01M10/052; H01M10/056; H01M10/0564; H01M4/13; H01M4/48; H01M4/50; H01M4/581; H01M4/5815; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
133 words
An electrochemical generator capable of operating reversibly at ambient temperature, comprising: (1) a negative electrode; (2) an electrolyte constituted by a solid solution of at least one salt in solution in a macromolecular material, the said solid solution being constituted to a large extent by an amorphous polyether structure and possessing sufficient ionic conductivity to allow operation of the generator at ambient temperature; and (3) a composite positive electrode constituted by the agglomeration product of a solid solution of at least one of the said salt in solution in a macromolecular material essentially constituted by an amorphous polyether structure and an electrochemically active material which is at least one metal compound selected from the group consisting of NiS 1 .75, NiS, FeS, CoS 2 , and Cu 4 O(PO 4 ) 2 .
Claim 2
Dependent Claim
133 words
An electrochemical generator capable of operating reversibly at ambient temperature, comprising: (1) a negative electrode; (2) an electrolyte constituted by a solid solution of at least one salt in solution in a macromolecular material, the said solid solution being constituted to a large extent by an amorphous polyether structure and possessing sufficient ionic conductivity to allow operation of the generator at ambient temperature; and (3) a composite positive electrode constituted by the agglomeration product of a solid solution of at least one of the said salt in solution in a macromolecular material essentially constituted by an amorphous polyether structure and an electrochemically active material which is at least one metal compound selected from the group consisting of NiS 1 .75, NiS, FeS, CoS 2 , and Cu 4 O(PO 4 ) 2 .
Claim 3
Dependent Claim
15 words
The electrochemical generator of claim 1, wherein the said metal compound is NiS 1 .75.
Claim 4
Dependent Claim
13 words
The electrochemical generator of claim 1, wherein the said metal compound is NiS.
Claim 5
Dependent Claim
13 words
The electrochemical generator of claim 1, wherein the said metal compound is FeS.
Claim 6
Dependent Claim
15 words
The electrochemical generator of claim 1, wherein the said metal compound is CoS 2 .
Claim 7
Dependent Claim
19 words
The electrochemical generator of claim 1, wherein the said metal compound is Cu 4 O(PO 4 ) 2 .
Claim 8
Dependent Claim
143 words
An electrochemical generator capable of operating reversibly at ambient temperature, comprising: (1) a negative electrode; (2) an electrolyte constituted by a solid solution of at least one salt in solution in a macromolecular material, the said solid solution being constituted to a large extent by an amorhous polyether structure and possessing sufficient ionic conductivity to allow operation of the said generator at ambient temperature; and (3) a composite positive electrode constituted by the agglomeration product of a solid solution of at least one of the said salt in solution in a macromolecular material essentially constituted by an amorphous polyether structure and an electrochemically active material which is at least one metal compound selected from the group consisting of NiS 1 .75, NiS, FeS, CoS 2 , and Cu 4 O(PO 4 ) 2 , wherein the said metal compound is a displacement compound.
Claim 9
Dependent Claim
143 words
An electrochemical generator capable of operating reversibly at ambient temperature, comprising: (1) a negative electrode; (2) an electrolyte constituted by a solid solution of at least one salt in solution in a macromolecular material, the said solid solution being constituted to a large extent by an amorhous polyether structure and possessing sufficient ionic conductivity to allow operation of the said generator at ambient temperature; and (3) a composite positive electrode constituted by the agglomeration product of a solid solution of at least one of the said salt in solution in a macromolecular material essentially constituted by an amorphous polyether structure and an electrochemically active material which is at least one metal compound selected from the group consisting of NiS 1 .75, NiS, FeS, CoS 2 , and Cu 4 O(PO 4 ) 2 , wherein the said metal compound is a displacement compound.
Claim 10
Dependent Claim
15 words
The electrochemical generator of claim 7, wherein the said metal compound is NiS 1 .75.
Claim 11
Dependent Claim
13 words
The electrochemical generator of claim 7, wherein the said metal compound is NiS.
Claim 12
Dependent Claim
13 words
The electrochemical generator of claim 7, wherein the said metal compound is FeS.
Claim 13
Dependent Claim
15 words
The electrochemical generator of claim 7, wherein the said metal compound is CoS 2 .
Claim 14
Dependent Claim
19 words
The electrochemical generator of claim 7, wherein the said metal compound is Cu 4 O(PO 4 ) 2 .
Claim 15
Dependent Claim
73 words
The electrochemical generator of claim 1, wherein during either a charging or a discharging cycle of the said generator, the composite electrode comprises unitary grains of active material or agglomerates of grains of active material, wherein the said unitary grains or grains of the said agglomerate are in contact with the phases that correspond to the species generated during the electrochemical process, the whole being coated in the macromolecular material with ionic conduction.
Claim 16
Dependent Claim
33 words
The electrochemical generator of claim 13, wherein the said macromolecular material is a copolymer of ethylene oxide and a second compound comprising a substituted cyclic ether oxide or a non-substituted cyclic ether oxide.
Claim 17
Dependent Claim
76 words
The electrochemical generator of claim 14, wherein the said substituted cyclic ether oxide is a compound of the formula (I): CH.sub.2 --CH(R)--O in which R is an alkyl or alkenyl radical R a having from 1 to 12 carbon atoms or a CH 2 --O--R e --R a radical, in which R e is a polyether radical of the formula --(CH 2 --CH 2 --O) p , wherein p is a number from 0 to 10.
Claim 18
Dependent Claim
40 words
The electrochemical generator of claim 15, wherein R is CH 2 --O--R e --R a or O--CH═CH 2 or CH 2 --O--CH 2 --CH═CH 2 and the second compound is present in a quantity of up to 30 molar percent.
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) | 1990-07-27 | 1991-01-26 | 1991-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-07-27 | 1995-01-26 | 1995-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-07-27 | 1999-01-26 | 1999-07-28 | $7700.00 | Window Closed / Lapsed |