Title:
二次電池の制御装置
Document Type and Number:
Japanese Patent JP7468395
Kind Code:
B2
Abstract:
A control device includes a diagnosis unit configured to diagnose a deterioration state of a secondary battery. The diagnosis unit includes: a resistance calculator configured to calculate a direct current resistance and a reaction resistance of impedance components based on an impedance measurement result of the secondary battery; an index value calculator configured to calculate an index value related to the direct current resistance and the reaction resistance; and a deterioration determination unit configured to compare the index value with a determination threshold based on an impedance characteristic at the time of normal deterioration of the secondary battery so as to determine whether a specific deterioration occurs due to charge and discharge of the secondary battery.
Inventors:
Hisashi Umemoto
Yuji Yamagami
Shuhei Yoshida
Uchiyama regular
Yuji Yamagami
Shuhei Yoshida
Uchiyama regular
Application Number:
JP2021023024A
Publication Date:
April 16, 2024
Filing Date:
February 17, 2021
Export Citation:
Assignee:
株式会社デンソー
International Classes:
G01R31/392; G01R31/3828; G01R31/388; G01R31/389; H01M10/42; H01M10/44; H01M10/48; H02J7/00
Domestic Patent References:
| JP2000299137A | ||||
| JP2018190502A | ||||
| JP201648213A | ||||
| JP202034426A | ||||
| JP2008241246A | ||||
| JP2014157662A |
Attorney, Agent or Firm:
Patent Attorney Corporation Aichi International Patent Office