Electrochemical cells with cationic polymers and electroactive sulfur compounds
US6110619A · kind A · utility
58Cited by
46References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1997 |
| Grant date | Aug 29, 2000 |
| Priority date | — |
| Expiry date | Dec 19, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49108
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention pertains to solid composite cathodes which comprise (a) an electroactive sulfur-containing cathode material which, in its oxidized state, comprises a polysulfide moiety of the formula, --S.sub.m --, wherein m is an integer from 3 to 10; and (b) a cationic polymer comprising quaternary ammonium salt groups. The present invention also pertains to electric current producing cells comprising such solid composite cathodes, and methods of making such solid composite cathodes and electric current producing cells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.