MUMBAI, India, June 24 -- Intellectual Property India has published a patent application (202517096715 A) filed by Lg Energy Solution, Ltd. on October 07, 2025, for Battery Diagnosis Apparatus And Battery Diagnosis Method.

Inventors include Choi, Hyun-Jun; Kim, Young-Deok; and Kim, Tae-Hyeon.

The application for the patent was published on June 12, 2026, under issue no. 24/2026.

Abstract: A battery diagnosis apparatus and a battery diagnosis method are disclosed. The battery diagnosis apparatus according to the present invention comprises: a data acquisition unit which acquires a first profile representing a state of charge (SOC)-voltage relationship of a battery cell comprising an active material having multiphasic nature; and a processor which generates a plurality of comparison profiles on the basis of a plurality of electrode profiles included in an electrode profile map. The processor compares each of the plurality of comparison profiles with the first profile to select any one of the plurality of comparison profiles as a second profile, and determines a positive electrode participation start point as a diagnosis factor indicating a state of health (SOH) of the battery cell on the basis of the second profile.

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