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Title:
ABNORMAL BATTERY CELL IDENTIFICATION METHOD AND APPARATUS, ELECTRONIC DEVICE, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2023/201532
Kind Code:
A1
Abstract:
An abnormal battery cell identification method and apparatus, an electronic device, and a storage medium. The identification method comprises: determining, on the basis of target feature data of a battery cell (11), whether or not the battery cell (11) has experienced a polarization abnormality, wherein the target feature data comprises feature data generated during battery cell formation and relating to battery cell polarization. On the one hand, since target feature data of a battery cell having abnormal polarization is distinctively different from target feature data of a battery cell without abnormal polarization during battery cell formation, it is possible to accurately determine whether or not the battery cell has experienced a polarization abnormality. On the other hand, since battery cell formation takes place before battery cells are assembled into a battery pack, a battery cell having abnormal polarization can be identified before the assembly, thereby reducing the risk of battery system performance deterioration and battery pack scrapping resulting from installing an abnormal battery cell.

Inventors:
FAN XIAOYUN (CN)
SUN JIANAN (CN)
LIN DEMING (CN)
WU JINGLIANG (CN)
Application Number:
PCT/CN2022/087737
Publication Date:
October 26, 2023
Filing Date:
April 19, 2022
Export Citation:
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Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
G01R31/00; B07C5/344; G01N27/00; G01R31/36; G01R31/367; G01R31/385; H01M10/44; H01M10/48
Foreign References:
CN114200329A2022-03-18
CN113675489A2021-11-19
CN110988563A2020-04-10
CN110412480A2019-11-05
CN109946620A2019-06-28
CN109164146A2019-01-08
CN110496799A2019-11-26
CN113805080A2021-12-17
CN112946485A2021-06-11
CN108508365A2018-09-07
CN112526376A2021-03-19
CN101714665A2010-05-26
JP2012021931A2012-02-02
Attorney, Agent or Firm:
BEIJING WEIFEI LIANCHUANG INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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