▎ 摘　　要

NOVELTY - Double-modified lithium-ion battery negative electrode material comprises mesocarbon microspheres, the surface of the mesocarbon microspheres is modified with melamine decomposition products and lithium fluoride. USE - Used as double-modified lithium-ion battery negative electrode material. ADVANTAGE - The method: uniformly coats the surface of MCMB with lithium fluoride and melamine decomposed products, stabilizes the structure of solid electrolyte membrane, improves the cycle stability of MCMB, and overcomes the problem of poor battery cycle stability of existing ion battery negative electrode materials. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparing the lithium ion battery negative material of double modification.