▎ 摘　　要

NOVELTY - Composite silicon-based electrode material comprises pre-lithiated silicon-based core and graphene layer. USE - Composite silicon-based electrode material used for lithium ion battery (claimed). ADVANTAGE - The material has high environmental stability, good inertness to solvent, more than 90% first-time Coulombic efficiency, good cycle stability and good inertness with capacity retention of more than 92% after 20 cycles. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the preparation of composite silicon-based electrode material comprising oxidizing pre-lithiated silicon-based core, coating carbon and forming graphene layer outside pre-lithiated silicon-based core.