MUMBAI, India, Feb. 13 -- Intellectual Property India has published a patent application (202541124987 A) filed by Dr G S Pandian R&D Llp; and Fujiyama Power Systems Ltd., Virudhnagar, Tamil Nadu, on Dec. 11, 2025, for 'circuits to avoid circulating currents when connecting more than 1 rack of high voltage lithium batteries in parallel.'
Inventor(s) include Dr G S Pandian R&D Llp; and Fujiyama Power Systems Ltd.
The application for the patent was published on Feb. 13, under issue no. 07/2026.
According to the abstract released by the Intellectual Property India: "Novel cost effective methods of removing circulating currents in Lithium batteries of a BESS are given to avoid PCB burnouts and Fire. To provide 100% stop of circulating currents in the Rack batteries, in the BESS, the charging path and discharging path of the inverter must be separated and diodes are to be used to enfoce current in one direction of each path. Three methods are given first for a case where the inside of the Inverter/PCS can be modified to separate the charging and discharging paths, second for a case of when the inside circuits of Inverter/PCS can not be modified and third for a case of using a Stack BMS to combine the outputs of several Rack BMSs. The proposed methods are simple and very cost effective that can help in constructing future BESS systems with out failures, PCB burn outs and Fire and also can help in increasing the life time of batteries due to the removal of circulating currents."
Disclaimer: Curated by HT Syndication.
