▎ 摘　　要

This paper introduces a binder-free electrode prepared by a facile deposition of C/TiO2 (Carbon/TiO2) or C/GTiO(2) (Carbon/Graphene-TiO2) on the coin cell anode using poly (methyl methacrylate) (PMMA) as a cheap carbon and binding source without using binders and a current collector. The use of graphene not only presents a conducting support to TiO2 particles, but also greatly improves the porosity of the electrode relative to pristine TiO2 or CT/TiO2. In the lithium-ion battery (LIB) anode, the direct deposition enabled sufficient electrical conductivity of the electrode, the intercalated layer-by-layer (LBL) arrangement of the C/GTiO(2) allowed sufficient Li+ accessibility, and the resulting electrode exhibited a higher specific capacity and an excellent rate capability compared to conventional TiO2 electrodes. Drop testing of the binder-free cells prior to electrochemical testing showed that all cells retained their original specific capacity, rate capability, and cycle stability, thus confirming the strong binding of the binder-free electrodes on the coin cell surface. (C) 2017 Elsevier B.V. All rights reserved.