Process for making a separator for an electrochemical device
US4849144A · kind A · utility
15Cited by
14References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 27, 1987 |
| Grant date | Jul 18, 1989 |
| Priority date | — |
| Expiry date | Aug 27, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A polymeric component, for use as a separator in an electrochemical device in which the anode comprises metallic lithium, comprises a thermoplastic polymer, a tertiary plasticizer and a filler that comprises a lithium compound which is substantially insoluble in both the polymer and the plasticizer. The component is rendered porous by deformation which increases its surface area. The porosity can be enhanced by extracting one or both of the plasticizer and the filler.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.