Battery
US7875382B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 28, 2008 |
| Grant date | Jan 25, 2011 |
| Priority date | — |
| Expiry date | Apr 24, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49108
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides battery cell having low resistance internal connections and compact, low volume terminal connections in order to maximize power-producing volume. The battery of the present invention may be created using a novel fold geometry to fold electrode tabs into compact, low profile tabs having a low total volume. The battery cell provides a means for equalizing path lengths from each electrode active area to the point of connection to the terminal and also reducing path length, thereby further reducing resistance of the battery. The connection means of the present invention consumes less internal battery space than connection means of prior art electrode stacks. Accordingly, the electrode stack of the present invention disposes more or larger battery cells in the battery than the prior art and thus provides more power than the prior art battery. The present invention is designed to overcome prior art difficulties in preparing a battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.