Electrode plate, wound electrode group, and cylindrical battery
US9531011B2 · kind B2 · utility
0Cited by
2References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2013 |
| Grant date | Dec 27, 2016 |
| Priority date | — |
| Expiry date | Sep 5, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrode plate is configured by applying an active material onto a base member formed of a punching steel plate, the electrode plate being wound via a separator together with an electrode plate, which has a different polarity, and having an outermost peripheral portion positioned at the outermost periphery of an electrode assembly. The rate of hole area of the base member at a different electrode overlapping portion, which radially inwardly overlaps on a winding terminal end of the electrode plate having the different polarity, is smaller than that of the base member at the outermost peripheral portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.