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1. (WO2018181624) STORED ELECTRICITY AMOUNT ESTIMATING DEVICE, ELECTRICITY STORAGE MODULE, STORED ELECTRICITY AMOUNT ESTIMATING METHOD, AND COMPUTER PROGRAM

Pub. No.:    WO/2018/181624    International Application No.:    PCT/JP2018/013057
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Thu Mar 29 01:59:59 CEST 2018
IPC: G01R 31/36
H01M 10/42
H01M 10/48
H02J 7/00
Applicants: GS YUASA INTERNATIONAL LTD.
株式会社GSユアサ
Inventors: UKUMORI, Nan
鵜久森 南
IKEDA, Yuichi
池田 祐一
Title: STORED ELECTRICITY AMOUNT ESTIMATING DEVICE, ELECTRICITY STORAGE MODULE, STORED ELECTRICITY AMOUNT ESTIMATING METHOD, AND COMPUTER PROGRAM
Abstract:
The objective of the present invention is to provide a stored electricity amount estimating device, an electricity storage module provided with said stored electricity amount estimating device, a stored electricity amount estimating method and a computer program with which it is possible to estimate an amount of electricity stored in an electricity storage element including an active material having a stored electricity amount - voltage value characteristic that exhibits hysteresis. A stored electricity amount estimating device (6) estimates a stored electricity amount of an electricity storage element (3) containing an active material in which at least two electrochemical reactions occur in accordance with a transition of charging and discharging, wherein hysteresis in a stored electricity amount - voltage value characteristic when one electrochemical reaction occurs is smaller than the hysteresis when the other electrochemical reaction occurs. The stored electricity amount estimating device (6) is provided with an estimating unit (62) which estimates the stored electricity amount on the basis of the stored electricity amount - voltage value characteristic if one of the electrochemical reactions occurs more frequently than the other electrochemical reaction.