▎ 摘　　要

Mesoporous TiO2 spheres/graphene (TOS/G) composites were successfully prepared via a UV-assisted method of reduced graphene oxide with hydrazine. The as-prepared TOS/G composites exhibit a high initial discharge capacity of 218 mAh g(-1) and retain 86% of reversible capacity over 100 cycles at a rate of 0.2 C.