Cylindrical battery
US9722215B2 · kind B2 · utility
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2References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2012 |
| Grant date | Aug 1, 2017 |
| Priority date | — |
| Expiry date | May 22, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A battery includes a cylindrical battery case and an electrode group including a positive electrode, a negative electrode, and a separator. The electrode group and the battery case define a space communicated from a top to a bottom, and one of the positive electrode and the negative electrode has a current collecting terminal that extends from the electrode group in a direction away from a center axis of the battery case and is in contact with a bottom surface of the battery case.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.