High-molecular gelling agent precursor for electrolyte
US6967232B2 · kind B2 · utility
1Cited by
6References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2002 |
| Grant date | Nov 22, 2005 |
| Priority date | — |
| Expiry date | Apr 6, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01M2300/0085
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A high-molecular gelling agent precursor for an electrolyte comprises a copolymer formed of (A) a hydrophobic monomer having a hydrophobic group, which forms a carboxyl group upon saponification, and (B) a hydrophobic polyfunctional monomer. The saponification product of the copolymer has property to gel the electrolyte. A high-molecular gelling agent for the electrolyte is produced by saponifying the precursor with a saponifying agent selected from the group consisting of acids and alkalis while using a reaction medium selected from the group consisting of water and hydrophobic organic solvents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.