▎ 摘 要
To improve the cycling stability and rate performance of SnO2-based anode materials applied in lithium ions batteries (LIBs), SnO2/graphene oxide (SnO2/GO) composite was synthesized by hydrothermal method. The SnO2/GO composite material exhibits much more excellent lithium ions storage capacity and cycling stability. The reversible capacity is 612.2 mAhg(-1) with the coulombic efficiency of 98.8%, after 100 cycles. Especially, at a high discharge-charge current density (1000 mAg(-1)), the SnO2/GO composite showed an outstanding structure stability and rate performance (204.2 mAhg(-1)). Such excellent performance could be attributed to the existence of GO. With the assistance of GO, the composite material achieves more stable structure and high electron conductivity. (c) 2018 Elsevier Ltd. All rights reserved.