▎ 摘　　要

A sandwich-structured SnS2@reduced graphene oxide (SnS2@rGO) nanocomposite consisting of SnS2 sheets uniformly anchored on both sides of rGO sheets is presented. The SnS2@rGO nanocomposites, prepared through a dipping process combining with a hydrothermal method, show good electrochemical performance, including the high reversible capability of 959.2 mA h g(-1) at 500 mA g(-1) over 500 cycles, and superior rate performance. A full cell consisting of a commercial LiCoO2 cathode and the SnS2@rGO anode delivers the stable capacity of similar to 821.3 mA h g(-1) (anode basis) after 200 cycles at 100 mA g(-1). The sandwich-structured SnS2@rGO nanocomposite accommodates volume changes during Li+ insertion and extraction and facilitates the rapid transport of ions and electrons. This high performance indicates that the presented SnS2@rGO nanocomposite is a promising anode candidate for practical application in Li-ion batteries. (C) 2018 Elsevier B.V. All rights reserved.