▎ 摘　　要

NOVELTY - A composite structure comprises graphene layers forming two or more gaps, in which each gap is formed by an upper graphene layer and a lower graphene layer of the graphene layers, and silicon particles uniformly dispersed in at least one of the two or more gaps of graphene layers or on their surface. The silicon particles and graphene layers form a graphene matrix. The silicon particles are closely bonded and embedded within the graphene matrix. The graphene matrix embedded with silicon particles form blobs of coupled and conductive material agglomerates. USE - Composite structure used as anode material for lithium battery and electrochemical energy storage device for electronic devices and electric vehicles. ADVANTAGE - The composite structure improves energy density of the battery, reduces cell size and weight, and reduces cost of the lithium batteries.