Process for preparing a solid, polymeric electrolyte based on polyvinyl ethers
US5411819A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 1993 |
| Grant date | May 2, 1995 |
| Priority date | — |
| Expiry date | Mar 3, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01M6/181
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Process for preparing a solid, polymeric electrolyte, in membrane from, characterized in that: (1) a mixture is prepared, which contains: PA1 (a) a vinyl ether (I) of formula EQU R--(--O--CH.sub.2 --CH.sub.2 --).sub.n --O--CH.dbd.CH.sub.2 PA1 wherein R=Me or Et and n is an integer comprised within the range of from 1 to 16; PA1 (b) a divinyl ether of formula EQU CH.sub.2 .dbd.CH--(--O--CH.sub.2 --CH.sub.2 --).sub.m --O--CH.dbd.CH.sub.2 PA1 wherein m is integer comprised within the range of from 1 to 10, in a molar ratio to the vinyl ether (I) comprised within the range of from 2:98 to 60:40; PA1 (c) an ionic compound in an amount comprised within the range of from 1 to 30% by weight; PA1 (d) an oligomer or a dipolar aprotic liquid in an amount comprised within the range of from 0 to 80% by weight; PA1 (e) a photoinitiator in an amount comprised within the range of from 0 to 10% by weight; (2) the above mixture is applied onto an inert support and is exposed to a source of ultraviolet light, or to an electron beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.