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1. (WO2018008469) ELECTRICITY STORAGE DEVICE, ELECTRICITY STORAGE SYSTEM, AND POWER SUPPLY SYSTEM

Pub. No.:    WO/2018/008469    International Application No.:    PCT/JP2017/023552
Publication Date: Fri Jan 12 00:59:59 CET 2018 International Filing Date: Wed Jun 28 01:59:59 CEST 2017
IPC: G01R 31/36
H01M 10/44
H01M 10/48
H02J 3/32
H02J 3/38
H02J 7/00
Applicants: KANEKA CORPORATION
株式会社カネカ
Inventors: KAWABE Masaru
川邉 勝
Title: ELECTRICITY STORAGE DEVICE, ELECTRICITY STORAGE SYSTEM, AND POWER SUPPLY SYSTEM
Abstract:
The objective of the present invention is to develop an electricity storage device, an electricity storage system and a power supply system with which it is possible to implement full charge capacity setting that corresponds to an actual full charge capacity. This electricity storage device includes a cell unit and a control unit which controls charging and discharging of the cell unit, wherein: the cell unit is capable of being discharged from a full charge capacity to a preset set capacity; the control unit is capable of implementing a full charge capacity adjusting mode; and in the full charge capacity adjusting mode, the control unit executes a remaining capacity calculating operation to calculate a remaining capacity corresponding to a first voltage in a state in which the cell unit has been discharged to the set capacity, on the basis of a preset correlation between the voltage of the cell unit and the cell capacity, for a case in which the cell unit has been discharged from the full charge capacity to the set capacity, and executes a consumed capacity calculating operation to calculate a consumed capacity that has been consumed during the period from the full charge capacity to the set capacity, by computing an amount of electric current from the cell unit during the period from the full charge capacity to the set capacity. The control unit sets the sum of the remaining capacity and the consumed capacity as the full charge capacity.