Patent ID: 11870087
Assignee: SANYO ELECTRIC CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B  Y | IPC B  H

Claim 0:
1. A power supply device comprising:
a plurality of secondary battery cells each having a flat rectangular parallelepiped shape; a pair of end plates covering both end faces of a battery stack having the plurality of secondary battery cells stacked on each other; and
a plurality of fastening members configured to fasten the end plates to each other, wherein
the plurality of fastening members each have a plate shape extending along a stacking direction of the plurality of secondary battery cells, the plurality of fastening members are respectively disposed on opposite surfaces of the battery stack, and the plurality of fastening members each have a through hole in each of both ends of the plate shape,
each of the pair of end plates includes a pipe portion inserted into the through hole of each of a pair of fastening members among the plurality of fastening members, the pair of fastening members being disposed on opposite surfaces of the battery stack,
each of the plurality of secondary battery cells comprises a package can having an opening and a sealing plate that seals the opening of the package can, and at least one of the plurality of fastening members is disposed on a surface of the sealing plate constituting one of the opposite surfaces of the battery stack.