Ion conductive polymer electrolyte membrane and production method for the same
US7540991B2 · kind B2 · utility
23Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2005 |
| Grant date | Jun 2, 2009 |
| Priority date | — |
| Expiry date | Mar 12, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides an electrolyte membrane formed of an ion conductive composition. Said composition contains a liquid crystalline polymer having an ionic dissociative group. Molecular chains of the liquid crystalline polymer are orientated in a specific direction. The degree of orientation α of the liquid crystalline polymer is in a range of 0.45 or more and less than 1, as defined by equation (1) as follows,Degree of orientation α=(180−Δβ)/180 (1),
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.