Rectangular secondary battery and assembled battery using the rectangular secondary battery
US10847761B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2018 |
| Grant date | Nov 24, 2020 |
| Priority date | — |
| Expiry date | Dec 24, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rectangular secondary battery includes a rectangular outer packaging body that has an opening; a sealing plate that seals the opening of the rectangular outer packaging body; and an electrode body that is arranged inside the rectangular outer packaging body and that includes a positive electrode plate and a negative electrode plate. A gas exhaust valve is formed at a center portion of the sealing plate in the longitudinal direction. In the longitudinal direction of the sealing plate, a first identification code is provided closer than the gas exhaust valve to one end portion of the sealing plate. In the longitudinal direction, a second identification code is provided closer than the gas exhaust valve to the other end portion of the sealing plate. The first identification code and the second identification code include identical information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.