Cathode current collector for electrochemical cells
US6403263B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 20, 2000 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | Oct 14, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49115
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided are cathode current collectors for use in electrochemical cells, wherein the current collector comprises a conductive primer layer applied upon a conductive support, and the primer layer comprises from about 25 to 70% by weight of a crosslinked polymeric material formed from a reaction of a polyvinyl acetal and a crosslinking agent, and about 30 to 75% by weight of a conductive filler. The present invention also pertains to methods of forming such cathode current collectors for use in electrochemical cells comprising (i) an anode comprising lithium, and (ii) a cathode comprising an electroactive sulfur-containing material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.