Facile Synthesis of Carbon-Coated Spinel LiTiO/Rutile-TiO Composites as an Improved Anode Material in Full Lithium-Ion Batteries with LiFePO@N-Doped Carbon Cathode.

The spinel LiTiO/rutile-TiO@carbon (LTO-RTO@C) composites were fabricated via a hydrothermal method combined with calcination treatment employing glucose as carbon source. The carbon coating layer and the in situ formed rutile-TiO can effectively enhance the electric conductivity and provide quick Li diffusion pathways for LiTiO. When used as an anode material for lithium-ion batteries, the rate capability and cycling stability of LTO-RTO@C composites were improved in comparison with those of pure LiTiO or LiTiO/rutile-TiO. Moreover, the potential of approximately 1.8 V rechargeable full lithium-ion batteries has been achieved by utilizing an LTO-RTO@C anode and a LiFePO@N-doped carbon cathode.