Material for solid polymer electrolyte, and polyether polymer and process for producing same
US7915378B2 · kind B2 · utility
11Cited by
6References
2Claims
0Family size
Inventors
Key dates
| Filing date | Oct 16, 2007 |
| Grant date | Mar 29, 2011 |
| Priority date | — |
| Expiry date | Oct 16, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A material for solid polymer electrolyte, made of a polyether polymer having a moisture content in the range of 400 to 5,000 ppm by weight. A formed solid polymer electrolyte, which is made by mixing the material for solid polymer electrolyte together with an electrolyte salt compound soluble in the polyether polymer, has good ionic conductivity and high mechanical strength. A polyether polymer having a moisture content not larger than 0.04% by weight and a toluene-insoluble content not larger than 5% by weight. This polyether polymer gives a formed solid polymer electrolyte having a smooth surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.