Title:
DEGRADATION PREDICTION DEVICE FOR SECONDARY BATTERY AND DEGRADATION PREDICTION METHOD FOR SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2024/062648
Kind Code:
A1
Abstract:
The present invention enables simple acquisition of a degradation state of a secondary battery. For this purpose, a degradation prediction device (1) for a secondary battery is provided with: a reference degradation characteristic calculation unit (10) that outputs a reference degradation characteristic (DC) for a first battery (110); a correction coefficient calculation unit (20) that calculates a correction coefficient (α) on the basis of a first reference degradation characteristic (DC1) obtained by supplying first usage condition information (US1), which is one piece of usage condition information (US), to the reference degradation characteristic calculation unit (10) and at least one piece of degradation point data (DA1) in a case in which a second battery (120) is used under a usage condition specified in the first usage condition information (US1); and a degradation characteristic correction unit (30) that outputs estimated degradation characteristic information (DP2) on the basis of second reference degradation characteristic (DC2) and the correction coefficient (α).
Inventors:
HONKURA KOHEI (JP)
Application Number:
PCT/JP2023/006376
Publication Date:
March 28, 2024
Filing Date:
February 22, 2023
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
G01R31/392; G01R31/367; G01R31/382; G01R31/385; H01M10/48; H02J7/00
Domestic Patent References:
| WO2021192845A1 | 2021-09-30 |
Foreign References:
| JP2015059933A | 2015-03-30 | |||
| JP2022018264A | 2022-01-27 | |||
| JP2011075364A | 2011-04-14 |
Attorney, Agent or Firm:
ISONO INTERNATIONAL PATENT OFFICE, P.C. (JP)
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