Texas Instruments (TI) has introduced a new battery monitor designed to detect thermal runaway in electric vehicle (EV) and energy storage systems by monitoring up to 26 individual cells, according to the company.
The device, designated BQ79731-Q1, uses electrochemical impedance spectroscopy (EIS) to measure internal cell changes that can precede catastrophic failure. The new battery monitor targets a market where battery safety has become a central concern for automakers and grid operators alike, with thermal runaway cited as a leading cause of battery fires [5].
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