Common production anomalies of lithium batteries

Are lithium-ion batteries susceptible to mechanical failures?

Volume 7, article number 35, (2024) Lithium-ion batteries (LIBs) are susceptible to mechanical failures that can occur at various scales, including particle, electrode and overall cell levels.

Why do lithium ion batteries fail?

Lithium-ion batteries (LIBs) are susceptible to mechanical failures that can occur at various scales, including particle, electrode and overall cell levels. These failures are influenced by a combination of multi-physical fields of electrochemical, mechanical and thermal factors, making them complex and multi-physical in nature.

Are lithium-ion batteries a nonlinear fault model?

Sidhu et al. (31) employed the equivalent circuit and impedance spectrum methods of lithium-ion batteries to construct multiple nonlinear characteristic fault models characterizing battery overcharging, discharging, and other anomalies.

Are lithium-ion batteries aging?

Conclusions The performance and aging of lithium-ion batteries (LIBs) are governed by complex physicochemical processes influenced by various operating variables. A thorough understanding of the degradation and failure mechanisms of LIBs is essential for optimizing their performance and ensuring their safety.

How do faults affect lithium-ion batteries?

The performance and lifespan of lithium-ion batteries are significantly impacted by various faults. In particular, concurrent faults result in complex crossover and coupling issues, which present considerable challenges to fault diagnosis.

Are lithium-ion batteries safe?

Lithium-ion batteries face safety risks from manufacturing defects and impurities. Copper particles frequently cause internal short circuits in lithium-ion batteries. Manufacturing defects can accelerate degradation and lead to thermal runaway. Future research targets better detection and mitigation of metal foreign defects.