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1. (WO2018088208) SECONDARY BATTERY SYSTEM

Pub. No.:    WO/2018/088208    International Application No.:    PCT/JP2017/038450
Publication Date: Fri May 18 01:59:59 CEST 2018 International Filing Date: Thu Oct 26 01:59:59 CEST 2017
IPC: H01M 10/48
H01M 10/52
Applicants: HITACHI, LTD.
株式会社日立製作所
Inventors: SAKABE Kei
坂部 啓
Title: SECONDARY BATTERY SYSTEM
Abstract:
Provided is a secondary battery system with which the operation of a rupture valve can be detected regardless of the installation position of the rupture valve. The secondary battery system comprises: a secondary battery having a rupture valve rupturing under specific conditions; a thin conductive film installed above the rupture valve; and a measuring instrument measuring the voltage or resistance which arises when a current flows through the thin conductive film. The thin conductive thin film may be installed in such a manner as to contact the rupture valve, the thin conductive film may be installed in such a manner as to plug a duct, and the resistance value of the thin conductive film may be from 1 kΩ to 1 MΩ.