Carbon-carbon composite anode for secondary non-aqueous electrochemical cells
US6949314B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 19, 2002 |
| Grant date | Sep 27, 2005 |
| Priority date | — |
| Expiry date | Mar 1, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides a secondary electrochemical cell comprising a body of aprotic, non-aqueous electrolyte, first and second electrodes in effective electrochemical contact with the electrolyte, the first electrode comprising active materials such as a lithiated intercalation compound serving as the positive electrode or cathode and the second electrode comprising a carbon-carbon composite material infiltrated with polymeric binder and serving as the negative electrode or anode. Such an electrochemical cell has improved mechanical properties and cycle life as compared with similar secondary non-aqueous electrochemical cells having carbon-carbon composite anodes that are not incorporated with polymeric binder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.