Prismatic secondary battery
US8574756B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2012 |
| Grant date | Nov 5, 2013 |
| Priority date | — |
| Expiry date | Jul 17, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A prismatic secondary battery includes a flat electrode assembly including one end having stacked positive electrode substrate exposed portions and including the other end having stacked negative electrode substrate exposed portions, and includes a positive electrode collector and a negative electrode collector connected to the corresponding outermost surface in the stacking direction of the stacked positive electrode substrate exposed portions and the stacked negative electrode substrate exposed portions, respectively, by resistance welding; the positive electrode substrate and the negative electrode substrate have thicknesses different from each other; a rib of the positive electrode collector and a rib of the negative electrode collector have heights different from each other; and each leading end in the height direction of the ribs has approximately the same height.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.