Li2SiO3@Li2SnO3/SnO2 as a high performance lithium-ion battery material

Li2SiO3@Li2SnO3/SnO2 composite has been prepared through a hydro-thermal method. The composite is with well crystalline and more pure when the doping content of Si powder is 0.3 g. The Li2SnO3 is a bulk structure with the diameter of 400 nm while Li2SiO3@Li2SnO3/SnO2 possesses the bulk structure heaped together by several nanoparticles, which can relieve the large volume change of the composite and then ensure the well cycling and rate properties. When charged and discharged at the current density of 150 mA/g, the composite shows a high initial discharge capacity of 1205.7 mAh/g. (C) 2018 Elsevier B.V. All rights reserved.