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1. (WO2018221423) POWER STORAGE AMOUNT ESTIMATION APPARATUS, POWER STORAGE MODULE, POWER STORAGE AMOUNT ESTIMATION METHOD, AND COMPUTER PROGRAM

Pub. No.:    WO/2018/221423    International Application No.:    PCT/JP2018/020218
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Sat May 26 01:59:59 CEST 2018
IPC: H01M 10/48
G01R 31/36
H01M 10/42
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: POWER STORAGE AMOUNT ESTIMATION APPARATUS, POWER STORAGE MODULE, POWER STORAGE AMOUNT ESTIMATION METHOD, AND COMPUTER PROGRAM
Abstract:
[Problem] To provide a power storage amount estimation apparatus that is capable of estimating the power storage amount of a power storage element including an active material in which power storage amount-voltage properties exhibit hysteresis, a power storage module that is provided with the power storage amount estimation apparatus, a power storage amount estimation method, and a computer program. [Solution] A power storage element 3 includes, in a positive electrode and/or a negative electrode, an active material which causes a plurality of electrochemical reactions in accordance with the process of change during charging and discharging and which exhibits hysteresis between a power storage amount-voltage charging (first) property and a power storage amount-voltage discharging (second) property. A BMU 6 is provided with: an acquisition unit 62 that acquires a power storage amount-voltage charging (third) property or/and power storage amount-voltage discharging (fourth) property for reference, on the basis of the first property, the second property, and charging/discharging voltage history; and an estimation unit 62 that estimates the power storage amount on the basis of the charging/discharging voltage history, the third property and/or the fourth property, and an acquired voltage.