Intellectual Property India Publishes Patent Application for 'Degradation Diagnosis Device, Degradation Diagnosis System, And Degradation Diagnosis Method' Filed by Mitsubishi Electric Corporation

MUMBAI, India, July 25 -- Intellectual Property India has published a patent application (202527065729 A) filed by Mitsubishi Electric Corporation, Tokyo, on July 10, for 'degradation diagnosis device, degradation diagnosis system, and degradation diagnosis method.'

Inventor(s) include Hara Satoshi; Takegami Tomoki; Hirai Seiji; and Nishiguchi Hiroto.

The application for the patent was published on July 25, under issue no. 30/2025.

According to the abstract released by the Intellectual Property India: "A degradation diagnosis device according to the present invention comprises a resistance calculation unit that calculates the resistance of a storage battery of a storage battery system, a capacity calculation unit that calculates the capacity of the storage battery during use of the storage battery system, a correlation determination unit that determines the correlation between the resistance and capacity of the storage battery on the basis of the calculated resistance and capacity, and a capacity estimation unit that estimates the capacity of the storage battery during a capacity estimation interval that is between the x-1th use and the xth use of the storage battery system on the basis of the correlation. The resistance calculation unit calculates the resistance multiple times during a pre-estimation interval that is until the x-1th use of the storage battery system and also calculates the resistance during the capacity estimation interval. The correlation determination unit determines the correlation on the basis of the resistance calculated during the pre-estimation interval and the capacity calculated during at least two uses of the storage battery system from a first to the x-1th use. The capacity estimation unit estimates the capacity of the storage battery on the basis of the correlation and the resistance calculated during the capacity estimation interval."

The patent application was internationally filed on Mar. 31, 2023, under International application No.PCT/JP2023/013474.

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