Solid polymer electrolyte, battery and solid-state electric double layer capacitor using the same as well as processes for the manufacture thereof
US5597661A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 1995 |
| Grant date | Jan 28, 1997 |
| Priority date | — |
| Expiry date | Jan 30, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49108
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A solid polymer electrolyte comprising a composite of (a) a polymer comprising 2-(meth)acryloyloxyethylcarbamic acid ester and (b) an electrolyte salt, which has a high ionic conductivity and can be made into a thin film. The present invention is also directed to an electrode comprising the solid polymer electrolyte and an electroactive substance or polarizable material; as well as a process for manufacturing the same. In addition, the present invention is directed to primary and secondary batteries having the solid polymer electrolyte, as well as a process for manufacturing the same. The battery according to the present invention has a high capacity, high current density, and further in the case of a secondary battery, good cyclability. Finally, the present invention is directed to a solid-state electric double layer capacitor comprising the solid polymer electrolyte, as well as a process for manufacturing the same. The electric double layer capacitor has a high output voltage and a large take-out current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.