Insights into Fast-Charge-Induced Cracking and Bulk Structural Deterioration of Ni-Rich Layered Cathodes for Lithium-Ion Batteries.

ABSTRACT: Ni-rich NMCs (lithium nickel manganese cobalt oxides) have been extensively utilized as a type of cathode material for Li-ion batteries due to their high energy density and cost efficiency. Meeting the increasing consumer demand for fast charging has become an urgent priority within the industry. Studies on structural degradation caused by fast charging, however, remain limited, especially concerning the understanding of the inter-related failure phenomena and mechanisms. In this study, our results reveal that prolonged fast-charge cycling of an NMC811 cathode leads to significant crack growth at both nano- and microscales. The rapid propagation of cracks from the particle interior to the surface significantly accelerates electrolyte infiltration, leading to the formation of the cathode el

SUBMITTER: Qu J 

PROVIDER: S-EPMC12462233 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature