Title:
APPARATUS AND METHOD FOR DIAGNOSING BATTERY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/158757
Kind Code:
A1
Abstract:
Disclosed is a battery system diagnosis technology capable of effectively diagnosing, at an early stage, a defective battery cell among a plurality of battery cells included in a battery system. A battery system diagnosing apparatus according to an aspect of the present invention is an apparatus for diagnosing a battery system including a plurality of battery cells having electrode tabs therein, the apparatus comprising: a voltage measuring unit configured to measure an end voltage for each charging or each discharging with respect to each of the plurality of battery cells; and a processor configured to accumulate, according to the passage of time, the end voltage of each battery cell, which is measured by the voltage measuring unit, and to detect a battery cell in which a defect has occurred in the electrode tab, among the plurality of battery cells, on the basis of the trend in the accumulated end voltages.
Inventors:
CHAE SU-HYUN (KR)
LEE BOM-JIN (KR)
LEE BOM-JIN (KR)
Application Number:
PCT/KR2022/000095
Publication Date:
July 28, 2022
Filing Date:
January 04, 2022
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
H01M10/48; G01R19/165; G01R31/385; G01R31/52; H01M10/42
Foreign References:
| JP2017075922A | 2017-04-20 | |||
| KR20140141289A | 2014-12-10 | |||
| JP2002050410A | 2002-02-15 | |||
| KR20190099686A | 2019-08-28 | |||
| JP2010190818A | 2010-09-02 | |||
| KR20210007559A | 2021-01-20 |
Other References:
See also references of EP 4203141A4
Attorney, Agent or Firm:
PHIL & ONZI INT'L PATENT & LAW FIRM (KR)
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