Can cylindrical lithium batteries collide

Dynamic evolutions of batteries are illustrated at different states of charge. The development of lithium-ion batteries (LIBs) has been constrained by impact safety concerns. This study aims to provide novel failure mechanisms of LIBs under different impact loadings to improve their safety performance.

Dynamic responses of cylindrical lithium .... Dynamic responses of cylindrical lithium-ion battery under localized impact loading Engineering problems, such as fire and explosion caused by mechanical damage, have restricted the further development of lithium-ion batteries (LIBs).

Component-level failure behaviors are presented employing the inertial effects. Mechanical and electrical failure characteristics are analyzed under different impacts. Dynamic evolutions of batteries are illustrated at different states of charge. The development of lithium-ion batteries (LIBs) has been constrained by impact safety concerns.

Among all types of cylindrical lithium-ion batteries, the 21700 exhibits the worst consequence, which is attributed to the adoption of high energy density LiNi 0.8 Co 0.15 Al 0.05 O 2 (NCA) and LiNi x Mn y Co z O 2 (NMC) cathode materials.

To describe the mechanical response of cylindrical batteries more comprehensively, Zhu et al. established a detailed model of cylindrical lithium-ion batteries, which can only reveal the failure sequence of components under axial compression. Additionally, some detailed models have taken into account the effects of strain rate [17, 18].

Through the indentation experiment and simulation of the battery cell, it can be found that K-type localized shearing failure occurs inside the battery cell due to the presence of the winding, which is the unique fracture mode of the cylindrical lithium-ion batteries.