Title:
BATTERY DIAGNOSIS METHOD, AND BATTERY SYSTEM FOR PROVIDING METHOD
Document Type and Number:
WIPO Patent Application WO/2023/214641
Kind Code:
A1
Abstract:
The present invention relates to a battery diagnosis method, and a battery system for providing the method. The battery system of the present invention comprises: a battery including a plurality of battery banks having a plurality of battery cells; and a control unit which determines the ratio of a second charging state change amount of the battery banks to a first charging state change amount of a reference battery bank if predetermined diagnosis conditions are satisfied in a charging mode in which the battery is charged with the power of an external device, and which compares the ratio with a diagnosis reference value so as to diagnose a defect of the battery banks, wherein the diagnosis reference value is determined on the basis of the number of battery cells connected in parallel in the battery banks.
Inventors:
HONG SUNG JU (KR)
KIM DONG HYUN (KR)
AN HYO SEONG (KR)
CHOI GEON (KR)
KIM DONG HYUN (KR)
AN HYO SEONG (KR)
CHOI GEON (KR)
Application Number:
PCT/KR2023/001309
Publication Date:
November 09, 2023
Filing Date:
January 27, 2023
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
G01R31/396; G01R19/00; G01R19/12; G01R31/36; G01R31/382; G01R31/389
Foreign References:
| KR20210050443A | 2021-05-07 | |||
| KR20210007246A | 2021-01-20 | |||
| CN112858924A | 2021-05-28 | |||
| JP2021128023A | 2021-09-02 | |||
| KR20210066609A | 2021-06-07 |
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (KR)
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