Power supply device, electric vehicle and power storage device including power supply device, and method of manufacturing power supply device
US12132219B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 20, 2019 |
| Grant date | Oct 29, 2024 |
| Priority date | — |
| Expiry date | May 9, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power supply device includes a battery stack body in which a plurality of secondary battery cells are stacked, a pair of end plates covering both end surfaces of the battery stack body, and a plurality of fastening members disposed on the side surface of the battery stack body and fasten the end plates to each other. Fastening member includes plate-shaped bar extended in a stack direction of the secondary battery cells, and locking blocks fixed to both ends of plate-shaped bar. Locking block is formed to be thicker than plate-shaped bar, is joined to an end surface of plate-shaped bar, and protrudes toward an outer peripheral surface of the end plate. The end plate is provided with a stopper portion abutting on locking block on a part close to the battery stack body of a fitting portion to which locking block is guided, and locking block is locked to the stopper portion to fasten the end plate with fastening member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.