Crosslinked polymer electrolyte and use thereof
US8026007B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2004 |
| Grant date | Sep 27, 2011 |
| Priority date | — |
| Expiry date | Nov 23, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A polymer electrolyte composition characterized by comprising: (1) a crosslinked material of a polyether binary copolymer which has a main chain comprising repeating units represented by the formula (i) and crosslinking units represented by the formula (ii) and which has a weight-average molecular weight of 104 to 107, (2) an electrolyte solution comprising an aprotic organic solvent, (3) an additive, as an optical ingredient, which comprises an ether compound having an ethylene oxide unit, and (4) an electrolyte salt compound comprising a lithium salt compound. The composition is excellent in liquid retention and ionic conductivity, is usable in a wide temperature range, and has excellent electrochemical properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.