Recent Advances of ZnCo O -based Anode Materials for Li-ion Batteries.

ZnCo O has been attracted wide research attention as a promising anode material for lithium-ion batteries (LIBs) in recent years based on its high theoretical specific capacity, low toxicity as well as stable chemical properties. However, the further large-scale application of pristine ZnCo O anode have been impeded because of its undesirable Li ion conductivity, low electronic conductivity, and finite stability of electrolytes at high potentials. Recently, optimizing the micro/nano structure, modification with carbonaceous materials, incorporation with metal oxides and constructing a binder-free structure on conductive substrate for ZnCo O -based materials have been verified as promising effective routes for solving the above problems.

Synthesis and electrochemical properties of ZnTiO/g-CN composites as anode materials for Li-ion batteries.

ZnTiO/g-CN (0, 1, 3 and 8 wt%) composites were prepared via a simple solvothermal method, and their physical and electrochemical properties were systematically analyzed. SEM and HRTEM results show that the ZnTiO/g-CN spherical structures with width sizes of about 500-700 nm are plump and uniform. Moreover, g-CN with a large specific surface area can effectively buffer the deformation of ZnTiO and reduce the resistance of ZnTiO charge transfer and Li diffusion, thus improving the conductivity of ZnTiO.