LiNi1-x-yCoxMnyO2 (NCM) cathodes are key materials for high-energy lithium-ion batteries (LIBs) for electric vehicles. However, their practical performance is limited by chemo-mechanical degradation, including anisotropic lattice strain, grain boundary stress, particle cracking, interfacial deterioration, impedance growth, and capacity fading. In this review, we provide a focused critical overview of mechanical degradation phenomena in high-energy cathode materials, with emphasis on their underlying origins, multiscale manifestations, and current mitigation strategies relevant to practical LIBs. This review aims to offer an accessible overview for both specialists and researchers newly entering the field.
SUBMITTED: 09 April 2026
ACCEPTED: 16 June 2026
PUBLISHED:
23 June 2026
SUBMITTED to ACCEPTED: 68 days
DOI:
https://doi.org/10.53623/amms.v2i2.1148