POWER SUPPLY DEVICE, VEHICLE PROVIDED WITH POWER SUPPLY DEVICE, AND POWER STORAGE DEVICE

Title:

POWER SUPPLY DEVICE, VEHICLE PROVIDED WITH POWER SUPPLY DEVICE, AND POWER STORAGE DEVICE

Document Type and Number:

WIPO Patent Application WO/2019/146238

Kind Code:

A1

Abstract:

In order to keep a cooling plate and a battery stack in an ideal thermally bonded state by preventing looseness of a bolt over a long period while securing the cooling plate to the battery stack via the bolt, in this power supply device, both ends of a binding bar (4) are coupled to a pair of end plates disposed at both ends in the stacking direction of a battery stack formed by stacking a plurality of battery cells, thereby securing the plurality of battery cells in the stacking direction, a cooling plate (9) formed of a different type of metal from that of the binding bar (4) is disposed in a thermally coupled state on the surface of the battery stack, and the cooling plate (9) is secured to the battery stack via a plurality of bolts (5) disposed in the longitudinal direction of the battery stack. In the power supply device, the length (L) of a secured region (21) where the binding bar (4) is secured to the cooling plate (9) via the plurality of bolts (5) is set to 70% or less of the total length (T) of the binding bar (4), and a unsecured region (22) that is not secured to the cooling plate (9) via the bolt (5) is provided at an end of the binding bar (4).

Inventors:

TERAUCHI SHINOBU
OMURA TETSUJI

Application Number:

PCT/JP2018/043384

Publication Date:

August 01, 2019

Filing Date:

November 26, 2018

Export Citation:

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Assignee:

SANYO ELECTRIC CO (JP)
PANASONIC CORP (JP)

International Classes:

H01M10/613; H01M10/625; H01M10/647; H01M10/653; H01M10/6554; H01M50/209; H01M50/224; H01M50/264

Domestic Patent References:

WO2016174855A1	2016-11-03
WO2012133708A1	2012-10-04

Foreign References:

JP2015520924A	2015-07-23
JP2015220117A	2015-12-07

Other References: