This paper reports a large-scale production route for graphene/TiO2 nanocomposites using water-based in situ precipitation method. In this method, freshly prepared graphene oxides/TiO2 obtained by precipitating Ti(SO4)(2) with NH3H2O was subjected to heat treatment in the presence of N-2, which resulted in the formation of graphene/TiO2 nanocomposites. Graphene/TiO2 composites prepared by our method were found to be suitable as anode materials for lithium ion batteries because of its stable cycling performance and high capacity. (C) 2011 Elsevier Ltd. All rights reserved.