Title:
ENERGY STORAGE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/193884
Kind Code:
A1
Abstract:
This energy storage system comprises a plurality of battery packs each housing a cell of a secondary battery, and at least one of the plurality of battery packs is exchanged with another battery pack during prescribed maintenance work. A control circuit 100 makes it possible to: extract a candidate for a battery pack during the next maintenance work from among the plurality of battery packs on the basis of the remaining service life of each of the plurality of battery packs; change the degree of the load applied to a prescribed battery pack among the plurality of battery packs so that the number of battery packs to be exchanged during the next maintenance work is a specified number on the basis of comparison results between the number of extracted battery packs and the specified number; and adjust the remaining service life of the battery pack.
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Inventors:
ARAKAWA ATSUSHI (JP)
NOGUCHI NAOAKI (JP)
NAKAHARA MIZUKI (JP)
KANOUDA AKIHIKO (JP)
NOGUCHI NAOAKI (JP)
NAKAHARA MIZUKI (JP)
KANOUDA AKIHIKO (JP)
Application Number:
PCT/JP2019/007960
Publication Date:
October 10, 2019
Filing Date:
February 28, 2019
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
H01M10/42; G01R31/392; H01M10/44; H01M10/48; H02J7/00
Domestic Patent References:
| WO2015087375A1 | 2015-06-18 |
Foreign References:
| JP2013085315A | 2013-05-09 | |||
| JP2016077139A | 2016-05-12 |
Attorney, Agent or Firm:
SUNNEXT INTERNATIONAL PATENT OFFICE (JP)
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