Gel polymer electrolytes for batteries
US8889301B2 · kind B2 · utility
19Cited by
12References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2009 |
| Grant date | Nov 18, 2014 |
| Priority date | — |
| Expiry date | Feb 6, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Nanostructured gel polymer electrolytes that have both high ionic conductivity and high mechanical strength are disclosed. The electrolytes have at least two domains—one domain contains an ionically-conductive gel polymer and the other domain contains a rigid polymer that provides structure for the electrolyte. The domains are formed by block copolymers. The first block provides a polymer matrix that may or may not be conductive on by itself, but that can soak up a liquid electrolyte, thereby making a gel. An exemplary nanostructured gel polymer electrolyte has an ionic conductivity of at least 1×10−4 S cm−1 at 25° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.