Preparation of graphene supported porous SnO2/NiO ternary composites as high capacity anode materials for Li-ion batteries

摘要

Porous SnO2/NiO/graphene ternary composites had been synthesized. Used as anode materials for lithium ion batteries, graphene supported porous SnO2/NiO ternary composites demonstrate excellent electrochemical performance and cycling stability. The first discharge capacity is 1280.4 mAh/g at a high current density of 300 mA/g. After 50 cycles, the reversible capacity is 410.74 mAh/g and the coulomb efficiency reaches at 99.4%. (C) 2015 Elsevier B.V. All rights reserved.