Co-doped NiO nanoflake arrays toward superior anode materials for lithium ion batteries

► In this paper, we attempt to address the poor kinetics of conversion reactions, the major drawback for it, by synchronously considering optimization design of electrode configuration and improvement of the lattice electronic conductivity of active materials. Results suggest Co-doped NiO nanoflake arrays electrode show high capacity, good cycling performance and rate capability. These can be attributed to the synthesis effect, coming from high electrode-electrolyte contact area, direct contact between each naonflake and current collector, fast Li+ diffusion and improvement of p-type conductivity of active materials.