Electrochemical cell with improved internal contact
US8283066B2 · kind B2 · utility
0Cited by
24References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 1, 2009 |
| Grant date | Oct 9, 2012 |
| Priority date | — |
| Expiry date | Apr 16, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Electrochemical battery cells with strip-like electrodes and having a pressure contact between a lead from one of the electrodes and a sidewall of the cell container. An electrochemical cell having a spiral wound electrode assembly having an internal lead in direct pressure contact with a lithium foil negative electrode free of a separate current collector and in contact with an inner portion of the cell container, wherein specified contact between the lead and lithium foil provides current flow between the container and foil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.