Energy storage device
US10644293B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2017 |
| Grant date | May 5, 2020 |
| Priority date | — |
| Expiry date | Jan 16, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An energy storage device comprising: electrode terminals; an electrode assembly formed by stacking a positive electrode plate and a negative electrode plate; and current collectors which connect the electrode terminals and the electrode assembly to each other, wherein at least one of the positive electrode plate and the negative electrode plate has a plurality of tab groups which are joined to the current collector, each tab group being formed by stacking one or more tabs projecting toward the electrode terminal, and at least one tab group among the tab groups and the current collector has a swaged joint portion, the swaged joint portion projecting from either one of the tab group or the current collector to the other of the tab group or the current collector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.