New energy battery cabinet discharge detection

Advanced detection systems continuously monitor battery performance and provide timely fault warnings, both of which are critical for ensuring safe operation in real-world applications [63, 64]. Traditional sensors that track voltage, current, and surface temperature serve as the foundation of these systems.

Battery safety detection technologies are also improving, particularly with multi-sensor fusion state estimation algorithms that optimize systems by integrating expansion force signals, thereby overcoming traditional voltage feedback limitations .

Accurate current monitoring enables real-time tracking of charge and discharge rates, providing essential control over the charging process and contributing to effective battery management. Integrated current detection within BMSs ensures that the SOC remains within safe boundaries, enhancing the safety, efficiency, and lifespan of LIBs.

Sazhin et al. proposed a constant voltage method to measure the leakage current of ISC batteries. By utilizing high-resolution current sensors to measure the current under battery equilibrium conditions, direct measurement of leakage current was accomplished.

The widespread use of high-energy–density lithium-ion batteries (LIBs) in new energy vehicles and large-scale energy storage systems has intensified safety concerns, especially regarding the safe and reliable operation of large battery packs composed of hundreds of individual cells.

Implantable sensors and non-destructive methods such as ultrasonic testing and X-ray imaging have emerged to assess battery safety during operation .