Title:
POWER SOURCE DEVICE, ELECTRIC VEHICLE EQUIPPED WITH SAID POWER SOURCE DEVICE, AND POWER STORAGE DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/262085
Kind Code:
A1
Abstract:
In order to protect a heat-shrinkable film that covers a battery cell even if the battery cell is used in a state where the battery cell repeatedly expands and contracts, this power source device comprises: a plurality of battery cells (1) each having an outer can (11) which is quadrangular, with primary surfaces (1A) opposing each other; an insulative heat-shrinkable film (5) that covers each of the plurality of battery cells (1); a plurality of separators (2) that are interposed between the plurality of battery cells (1); a battery layered body obtained by layering the plurality of battery cells (1) with the separators (2) therebetween; a pair of end plates disposed at both end surfaces of the battery layered body; and a plurality of binding bars that are disposed at opposing side surfaces of the battery layered body, and that fasten the end plates together. The heat-shrinkable film (5) has expandability such that a maximum elongation amount of the film in a heat-shrunken state is greater than a maximum elongation amount of the primary surface (1A) of the outer can (11) during expansion of the battery cell (1).
Inventors:
HARAZUKA KAZUHIRO
YAMASHIRO GO
YAMASHIRO GO
Application Number:
PCT/JP2020/023449
Publication Date:
December 30, 2020
Filing Date:
June 15, 2020
Export Citation:
Assignee:
SANYO ELECTRIC CO (JP)
International Classes:
H01M2/10; H01M2/02
Domestic Patent References:
| WO2019123903A1 | 2019-06-27 |
Foreign References:
| JP2013225420A | 2013-10-31 | |||
| JP2012181971A | 2012-09-20 | |||
| JP2002245998A | 2002-08-30 | |||
| JP2015187913A | 2015-10-29 |
Attorney, Agent or Firm:
TOKUDA Yoshiaki et al. (JP)
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