Patent ID: 11929479
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;
a pair of end plates that covers both end faces of a battery stack in which the plurality of secondary battery cells are stacked;
a plurality of fastening members that fasten the pair of end plates to each other;
a plurality of pressing parts that press upper surfaces of the plurality of secondary battery cells respectively; and
a buffer interposed between the plurality of pressing parts and the upper surfaces of the plurality of secondary battery cells, wherein
the buffer includes:
a plurality of covers containing resin; and
a plurality of connecting parts having flexibility, one of the plurality of connecting parts configured to connect one of the plurality of covers and another one of the plurality of covers adjacent to the one of the plurality of covers, each of the plurality of covers is disposed on an upper surface of a corresponding one of the plurality of secondary battery cells,

each of the plurality of pressing parts abuts on an upper surface of a corresponding one of the plurality of covers,
each of the plurality of connecting parts is U-shaped, and
the one of the plurality of connecting parts is provided between the one of the plurality of covers and the another one of the plurality of covers.