Comparing wavelet spectra of battery voltage and current can reveal transient micro-short-circuit faults that cause voltage drops of only 20 to 30 mV, based on lab experiments on one cell.
Case study of an electric vehicle battery thermal runaway and online internal short- circuit detection,
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A precise detection method for transient micro short-circuit faults of lithium-ion batteries through signal processing
Comparing wavelet spectra of battery voltage and current can reveal transient micro-short-circuit faults that cause voltage drops of only 20 to 30 mV, based on lab experiments on one cell.