MUMBAI, India, March 13 -- Intellectual Property India has published a patent application (202641025396 A) filed by Ecole Centrale School Of Engineering, Mahindra University, Hyderabad, Telangana, on March 3, for 'a compact potentiostat-based system and method for internal resistance and state-of-charge estimation of lithium-ion cells.'

Inventor(s) include Sreedhar Madichetty; and Dubbaka Manoj Goud.

The application for the patent was published on March 13, under issue no. 11/2026.

According to the abstract released by the Intellectual Property India: "The invention reveals a compact integrated potentiostat system and process for estimating internal resistance and state-of-charge parameters of lithium-ion batteries based on time-domain electrochemical analysis. The potentiostat is developed utilizing a minimalistic hardware configuration that consists of a digital control module and an analog front-end, which allows for precise voltage drive and current measurement in a standalone and portable setup independently of any external equipment and commercial software. The integrated system is based on a chronoamperometric technique, during which a voltage drive is applied, and the corresponding current values are measured over time. The obtained voltage and current time-domain data are processed to calculate internal resistance, and based on that parameter, information about the state of charge and internal status of a lithium-ion battery can also be estimated. According to the invention, there is a compact, effective, and non-invasive device for monitoring lithium-ion batteries."

Disclaimer: Curated by HT Syndication.