Core-Double-Shell TiO@FeO@C Microspheres with Enhanced Cycling Performance as Anode Materials for Lithium-Ion Batteries.

Due to the volume expansion effect during charge and discharge processes, the application of transition metal oxide anode materials in lithium-ion batteries is limited. Composite materials and carbon coating are often considered feasible improvement methods. In this study, three types of TiO@FeO@C microspheres with a core-double-shell structure, namely TFCS (TiO@FeO@C with 0.