▎ 摘　　要

NOVELTY - Composite roll comprises flexible nano rolls and red phosphorus particles. The flexible nano-roll is formed by curling a sheet-like graphene substrate. The two ends of the flexible nano roll are open with a cavity inside, and the red phosphorus particles are wrapped in the cavity. USE - Composite roll. ADVANTAGE - The composite roll is beneficial to weaken the negative effect brought by the volume expansion of red phosphorus, improves the conductive performance of the composite material, and achieves excellent rate performance and cycle stability.