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Patent Searching and Data


Title:
BATTERY DIAGNOSIS DEVICE, BATTERY DIAGNOSIS METHOD, AND BATTERY DIAGNOSIS PROGRAM
Document Type and Number:
WIPO Patent Application WO/2022/162887
Kind Code:
A1
Abstract:
The purpose of this invention is to make it possible to accurately assess the degradation state of a storage battery within a practical time. This battery diagnosis device acquires a first variation of the voltage value of a storage battery during a rest period after the storage battery has been subjected to a charge operation and calculates a degradation state that does not include the influence of the internal resistance of the storage battery on the voltage value by removing the influence of the internal resistance from the first variation (see FIG. 8).

Inventors:
MIFTAHULLATIF EMHA BAYU (JP)
KOUNO TORU (JP)
FUJIMOTO HIROYA (JP)
Application Number:
PCT/JP2021/003315
Publication Date:
August 04, 2022
Filing Date:
January 29, 2021
Export Citation:
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Assignee:
HITACHI HIGH TECH CORP (JP)
International Classes:
G01R31/367; G01R31/392
Foreign References:
JP2017125680A2017-07-20
JP2015213409A2015-11-26
JP2000014027A2000-01-14
JP2002017045A2002-01-18
JPH07326388A1995-12-12
US20190128969A12019-05-02
Attorney, Agent or Firm:
HIRAKI & ASSOCIATES (JP)
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