Title:
LEAD-ACID BATTERY SYSTEM AND LEAD-ACID BATTERY DETERIORATION ESTIMATION METHOD
Document Type and Number:
WIPO Patent Application WO/2023/106301
Kind Code:
A1
Abstract:
Provided are a lead-acid battery system and a lead-acid battery deterioration estimation method, each of which more accurately estimates the degree of deterioration of a lead-acid battery regardless of the cause of the deterioration, so as to be able to contribute to reliability improvement. The present invention comprises: a transition determination unit (131) that determines switching between charge and discharge processes of a lead-acid battery (B); a calculation unit (132) that calculates a CT value on the basis of a discharge current value during a discharge period of the storage battery; and a deterioration determination unit (134) that uses the CT value calculated by the calculation unit (132) so as to determine the degree of deterioration of the lead-acid battery.
Inventors:
TANIMURA YUDAI (JP)
NAKAMURA HIDETO (JP)
KUTSUMA AYAKA (JP)
SATO TOSHIYUKI (JP)
YOSHIDA HIDEAKI (JP)
NAKAMURA HIDETO (JP)
KUTSUMA AYAKA (JP)
SATO TOSHIYUKI (JP)
YOSHIDA HIDEAKI (JP)
Application Number:
PCT/JP2022/044984
Publication Date:
June 15, 2023
Filing Date:
December 06, 2022
Export Citation:
Assignee:
FURUKAWA ELECTRIC CO LTD (JP)
FURUKAWA BATTERY CO LTD (JP)
FURUKAWA BATTERY CO LTD (JP)
International Classes:
G01R31/392; G01R31/379; G01R31/3828; G01R31/385; H01M10/42; H01M10/44; H01M10/48; H02J7/00
Foreign References:
| JP2006010601A | 2006-01-12 | |||
| JP2013250159A | 2013-12-12 | |||
| JP2006156022A | 2006-06-15 | |||
| JP2000299134A | 2000-10-24 | |||
| JP2021061121A | 2021-04-15 | |||
| JP2021061118A | 2021-04-15 | |||
| JP2015210991A | 2015-11-24 | |||
| CN107681204A | 2018-02-09 |
Attorney, Agent or Firm:
TANAKA Hidetetsu et al. (JP)
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