Secondary battery cell
US11024868B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 2018 |
| Grant date | Jun 1, 2021 |
| Priority date | — |
| Expiry date | Apr 23, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present application provides a second battery cell comprising first and second electrodes, first and second tabs, and a separator. The first electrode and second electrode include first and second current collectors and first and second active material layers respectively. The first and second electrodes are formed with first and second tab accommodating grooves for accommodating the first and second tabs respectively. The first tabs are arranged in pairs, and two first tabs in each pair are respectively located on the upper and lower sides of the first winding starting section of the first electrode along the thickness direction of the secondary battery cell; and/or the second tabs are arranged in pairs, and two second tabs in each pair are respectively located on the upper and lower sides of the second winding starting section of the second electrode along the thickness direction of the secondary battery cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.