Solid, polymeric electrolyte on polyepoxy basis
US5162174A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 1990 |
| Grant date | Nov 10, 1992 |
| Priority date | — |
| Expiry date | Oct 4, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01M6/181
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A solid, polymeric electrolyte is constituted by a solid solution of an ionic compound in a polyepoxide, wherein said polyepoxide is the product of copolymerization of a monoepoxide of formula: ##STR1## wherein: R stands for methyl or ethyl radical; and PA0 n is an integer comprised within the range of from 2 to 10; with a diepoxide of formula: ##STR2## wherein: m is an integer comprised within the range of from 2 to 10; PA0 with a molar ratio of monoepoxide to diepoxide comprised within the range of from 99.9/0.1 to 90/10; PA0 with said polyepoxide furthermore having a weight average molecular weight equal to, or higher than, 1,000, and a glass transition temperature (Tg) of from -80.degree. to -60.degree. C. The solid, polymeric electrolyte can be converted into an electrochemical membrane useful in the manufacture of high-energy-density electrochemical generators, optical displays, electrochromic systems and sensors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.