Electrochemical cell current collector having openings of progressively larger sizes converging at a tab
US7000297B2 · kind B2 · utility
22Cited by
20References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2002 |
| Grant date | Feb 21, 2006 |
| Priority date | — |
| Expiry date | Apr 28, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49108
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a current collector for an electrochemical cell. The current collector is a substrate having a grid pattern comprising open areas converging at an imaginary focal point on a connector tab of the substrate. The openings are grouped into distinct regions with the larger openings immediately adjacent to the connector tab and the smaller openings distant there from. This provides more conductive pathways at greater distances from the tab.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.