BATTERY DIAGNOSIS APPARATUS AND METHOD

WIPO Patent Application WO/2023/234600

A1

A battery diagnosis apparatus, according to an embodiment of the present invention, comprises: a voltage measurement unit configured to measure a voltage of a battery during a battery discharge process; a pulse output unit configured to generate a discharge pulse in predetermined periods and output the generated discharge pulse to the battery; and a control unit configured to calculate a resistance value of the battery on the basis of a voltage deviation of the battery caused by the discharge pulse, determine a resistance pattern in a preset initial discharge section on the basis of the calculated resistance value, and diagnose whether lithium is precipitated in the battery according to the determined resistance pattern.

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KIM DAE-SOO (KR)
KIM YOUNG-DEOK (KR)

PCT/KR2023/006643

December 07, 2023

May 16, 2023

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LG ENERGY SOLUTION LTD (KR)

G01R31/392; B60L58/16; G01R19/10; G01R29/02; G01R31/378; G01R31/3835; G01R31/389; H01M10/052

JP2011222343A	2011-11-04
JP6918433B1	2021-08-11
KR101998069B1	2019-07-09
JP2022073107A	2022-05-17
KR20160077875A	2016-07-04

PHIL & ONZI INT'L PATENT & LAW FIRM (KR)

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