Electrochemical device using multicomponent composite membrane film
US7014948B2 · kind B2 · utility
96Cited by
7References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2002 |
| Grant date | Mar 21, 2006 |
| Priority date | — |
| Expiry date | Jan 5, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention provides a electrochemical element, wherein a multi-component composite film comprising a) polymer support layer film and b) a porous gellable polymer layer which is formed on either or both sides of the support layer film of a), wherein the support layer film of a) and the gellable polymer layer of b) are unified with each other without an interface between them.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.