US4620944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Macromolecular material of ionic conduction for producing electrolytes or electrodes
Assignee: Hydro-Québec
•
Filing: 1985-05-29
•
Granted: 1986-11-04
•
Expires: 2005-05-29
Abstract
Abstract Macromolecular material of ionic conduction constituted by a salt in solution in a polyether. The polyether is polycondensed and/or cross-linked and presents at least two chains connected to each other by a bridge that comprises a silicon, cadmium, boron or titanium atom connected to one of the chains by an oxygen atom. Application to producing electrodes and electrolytes for electrochemical accumulators.
Inventors
- 👤 Michel Armand
- 👤 Daniel Muller
- 👤 Jean-Michel Chabagno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:41
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14; H01M6/18; H01M6/181; C; C08; C08L; C08L71/00; C08L71/02; C08L85/00; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/122
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
51 words
An ionically conductive material comprised of a salt in solution in a macromolecular material, said macromolecular material comprising at least two polyether chains connected to each other via an atomic bridge, said atomic bridge being at least one member selected from the group consisting of silicon, cadmium, boron and titanium atoms.
Claim 2
Dependent Claim
51 words
An ionically conductive material comprised of a salt in solution in a macromolecular material, said macromolecular material comprising at least two polyether chains connected to each other via an atomic bridge, said atomic bridge being at least one member selected from the group consisting of silicon, cadmium, boron and titanium atoms.
Claim 3
Dependent Claim
27 words
The ionically conductive material of claim 1, wherein the said atomic bridge is bound to an oxygen atom of at least one of the said polyether chains.
Claim 4
Dependent Claim
28 words
The ionically conductive material of claim 1, wherein the said atomic bridge is a silicon atom bound to an oxygen atom of each of the said polyether chains.
Claim 5
Dependent Claim
41 words
The ionically conductive material of claim 1, wherein the said macromolecular material comprises at least three polyether chains connected to each other by at least one silicon atom bound to each of the said three polyether chains via an silicon-oxygen bond.
Claim 6
Dependent Claim
18 words
The ionically conductive material of claim 1, wherein the said polyether chain is a homopolymer or a copolymer.
Claim 7
Dependent Claim
16 words
The ionically conductive of claim 1, wherein the said polyether chain is an ethylene oxide-containing copolymer.
Claim 8
Dependent Claim
18 words
The ionically conductive material of one of claims 5 or 6, wherein the said polyether chains are identical.
Claim 9
Dependent Claim
21 words
The ionically conductive material of claim 5, wherein the said polyether chains have a molecular weight of between 250 and 30,000.
Claim 10
Dependent Claim
113 words
The ionically conductive material of claim 1, wherein the said macromolecular material is obtained by the reaction of a polyether glycol with at least one cross-linking or condensing agent, wherein the said polyether glycol is in free or metallic salt form, is mono or poly dispersed, and is pure or mixed with at least one other polyether glycol, and wherein the said agent contains at least one atom of a metal or an at least divalent metalloid which is chosen from the group consisting of silicon, cadmium, boron and titanium, and wherein the said reaction takes place in the presence of a salt to be put into solution in the said macromolecular material.
Claim 11
Dependent Claim
79 words
The ionically conductive material of claim 9, wherein the said agent is present in at most a stoichiometric quantity and comprises a halogen or a psuedohalogen derivative of the formula: R'.sub.x MX.sub.(n-x) wherein: R' represents an alkyl radical; x represents the number of radicals R'; X is the halogen or pseudohalogen; M is the metal or the at least divalent metalloid; n is the valency of M with the condition that n-x is less than or equal to 2.
Claim 12
Dependent Claim
11 words
The ionically conductive material of claim 10, wherein R' is methyl.
Claim 13
Dependent Claim
57 words
The ionically conductive material of claim 9, wherein the said reaction is a transesterification reaction run in the presence of a light alkoxide of the said metal represented by the formula R"-O-M in which R" is an alkyl radical having from 1 to 8 carbon atoms, and M is the metal or the at least bivalent metalloid.
Claim 14
Dependent Claim
24 words
The ionically conductive material of claim 9, wherein the said reaction is a transesterification reaction and the atomic bridge is a boric acid compound.
References Cited (Backward Citations)
US3625684A
Cited
US4091022A
Cited
US4200701A
Cited
FR2430439A1
Cited
US4303748A
Cited
EP0037776A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-11-03 | 1990-05-05 | 1990-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-03 | 1994-05-05 | 1994-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-03 | 1998-05-05 | 1998-11-04 | $7700.00 | Window Closed / Lapsed |