Preparation of polymer-impregnated battery separator material and cell made therewith
US5368614A · kind A · utility
5Cited by
5References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 21, 1994 |
| Grant date | Nov 29, 1994 |
| Priority date | — |
| Expiry date | Mar 21, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49115
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrochemical cell (56) is made by furnishing an anode (52) and a cathode (54), preparing a separator (58), and placing the separator (58) between the anode (52) and the cathode (54). The separator (58) is prepared by furnishing a sheet of a porous separator substrate (40), preparing a solution of a water insoluble polymer in an organic solvent, spraying the solution onto both sides of the separator substrate (40), spraying water onto both sides of the separator substrate (40), and drying the separator substrate (40).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.