▎ 摘　　要

NOVELTY - Multi-alloy composite negative electrode material comprises modified nanoactive material, graphene sheets dispersed between modified nanocomposites, and amorphous conductive carbon layer surrounding modified nanoactive material and graphene sheet. USE - Multi-alloy composite negative electrode material used for lithium ion battery (claimed). ADVANTAGE - The composite material has excellent cycle and multiplying power property, relatively low volume expansion effect, and simple and controllable preparation. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of multi-alloy composite negative electrode material comprising preparing precursor of modified nanoactive material, granulating with graphene to obtain precursor, coating precursor with organic carbon source, and subjecting to high-temperature carbonization under protective gas atmosphere.