▎ 摘　　要

NOVELTY - Cathode material, includes a core layer. The core layer is a modified cobalt-based alloy secondary particle, the modified cobalt-based alloy secondary particle includes many cobalt-based alloy primary particles and primary particles dispersed in the cobalt-based alloy graphene nanosheets between the particles. The graphene nanosheets are loaded with metal ions, and an amorphous carbon shell layer is coated on the outer surface of the core layer. USE - The cathode material is used in lithium-ion battery (claimed). ADVANTAGE - The cathode material: can effectively prevent the cracking and expansion of the core layer particles to improve the cycle performance of the product; adopts graphene nanosheets loaded with metal ions, which can serve as a high-mobility channel for the overall conductive path of the material, thus shortening the relaxation time of the product and increasing its effective fluidity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing cathode material.