Electrospun Ti2Nb10O29 hollow nanofibers as high-performance anode materials for lithium-ion batteries

Ti2Nb10O29 is a high-capacity, safe and stable anode material for lithium-ion batteries, but suffers from a poor rate capability. To tackle this issue, nanotechnology is employed, and Ti2Nb10O29 hollow nanofibers with an average fiber diameter of similar to 500 nm and shell thickness of similar to 90 nm are prepared by a facile co-electrospining technique followed by calcination in air. This material exhibits not only a high reversible capacity (307 mAh g(-1) at 0.1 C) and durable cyclic stability (0.06% capacity loss per cycle at 10 C over 500 cycles) but also an outstanding rate capability (136 mAh g(-1) at 20 C), thereby becoming a promising anode material for high-performance lithium-ion batteries. (C) 2017 Elsevier B.V. All rights reserved.