The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 26, 2024
Filed:
Dec. 24, 2019
Sanyo Electric Co., Ltd., Osaka, JP;
Go Yamashiro, Hyogo, JP;
SANYO Electric Co., Ltd., Osaka, JP;
Abstract
A power supply device includes a battery stack body including 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 each disposed on an opposing side surface of the battery stack body to fasten the end plates to each other. Fastening member includes end-part fastening parts fixed to the end plates at both ends in a longer direction, and intermediate coupling part coupling end-part fastening parts to each other, and intermediate coupling part has a plate shape extending along a side surface of the battery stack body, and includes a plurality of rows of coupling bars formed in a wave shape in front view of fastening member. At the time of expansion of the secondary battery cells, the power supply device elastically deforms coupling bar in a plane along the side surface of the battery stack body so that intermediate coupling part stretches in the stack direction of the secondary battery cells.