MUMBAI, India, July 5 -- Intellectual Property India has published a patent application (202517050099 A) filed by Envision Energy Technology Pte Ltd., Singapore, on May 24, for 'title of the invention method and system for recognizing electric leakage state of battery based on spatial difference.'
Inventor(s) include Gao, Wenkai; Xu, Zhonghua; Yang, Yang; Qian, Zhenhua; and Shi, Jinghui.
The application for the patent was published on July 4, under issue no. 27/2025.
According to the abstract released by the Intellectual Property India: "A battery electric leakage state identification method and system based on a spatial difference. The method comprises: setting the time lengths of time periods, selecting a target time period, and setting a reference battery system of each battery system; acquiring an equalized electric quantity of each single battery cell in the battery system under an equalization strategy; and calculating a cumulative equalized electric quantity of the battery system within the target time period, acquiring a cumulative equalized electric quantity of the reference battery system within the target time period, and using a statistical method to identify an electric leakage state of the battery system on the basis of the cumulative equalized electric quantities of the battery system and the reference battery system within the target time period. In the method, on the basis of an association between an electric leakage state of a single battery and an equalized electric quantity of the single battery, cumulative equalized electric quantities of a battery system and a reference battery system thereof in a spatial dimension are researched to identify an electric leakage state of the battery system, such that the identification and forewarning of the electric leakage state of the battery system can be performed without being affected by equalization."
The patent application was internationally filed on Dec. 06, 2023, under International application No.PCT/CN2023/136860.
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