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1. (WO2017033412) BATTERY SYSTEM AND ELECTRIC VEHICLE EQUIPPED WITH SAME BATTERY SYSTEM

Pub. No.:    WO/2017/033412    International Application No.:    PCT/JP2016/003597
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Fri Aug 05 01:59:59 CEST 2016
IPC: H01M 10/6556
H01M 2/10
H01M 10/613
H01M 10/617
H01M 10/625
H01M 10/633
H01M 10/647
H01M 10/652
H01M 10/6554
H01M 10/6568
Applicants: SANYO ELECTRIC CO., LTD.
三洋電機株式会社
Inventors: NISHIKAWA, Masato
西川 誠人
KOMAKI, Tsuyoshi
小牧 豪
Title: BATTERY SYSTEM AND ELECTRIC VEHICLE EQUIPPED WITH SAME BATTERY SYSTEM
Abstract:
In order to uniformly cool a battery cooled via a plurality of heat exchangers by reducing the differences in temperature therebetween, this battery system comprises: a battery unit (2) provided with a plurality of unit cells capable of being charged and discharged; a plurality of heat exchangers (3) for cooling the unit cells of the battery unit (2) via a liquid coolant being circulated; and a cooling mechanism (35) communicating with the heat exchangers (3) via a circulation path (8) whereby the liquid coolant is circulated. The circulation path (8) contains a plurality of branching portions (8B) whereby the liquid coolant is split and diverted. The branching portions (8B) communicate with the heat exchangers (3), and the liquid coolant supplied by the cooling mechanism (35) is diverted from the branching portions (8B) to be supplied to each of the heat exchangers (3). In addition, a flow rate adjustment unit for controlling the flow rate of the liquid coolant is provided at each of the branching portions (8B) so as to control the flow rate of the liquid coolant with the flow rate adjustment units and equalize the differences in temperature across the unit cells coupled to each of the heat exchangers (3).