Ionically conductive polymer gels
USRE37700E1 · kind E1 · reissue
5Cited by
3References
25Claims
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Key dates
| Filing date | Jun 17, 1999 |
| Grant date | May 14, 2002 |
| Priority date | — |
| Expiry date | Jun 17, 2019 |
Classification
- Technology area (CPC —)General
Abstract
A bulk ionically conductive polymer gel is prepared by dissolving a salt such as lithium trifluoromethanesulphonate (which would provide lithium ion conductors) in an organic compound such as N-formylpiperidine. The organic compound dissolves the salt at 20° C. but is not a solvent at 20° C. though it is at 215° C.) for polyethylene terephthalate. The last-named is a crystallizable polymer which is added in a minor amount at a high temperature to the other components and provides the required mechanical rigidity for the product at lower temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.