Ti2Nb10O29@C hollow submicron ribbons for superior lithium storage

Titanium niobate prepared by traditional techniques has the shortcomings of low ion diffusion coefficient as well as poor electrical conductivity , which drastically reduce its applicability. In this work, we prepare carbon coated Ti 2 Nb 10 O 29 hollow submicron ribbons (Ti 2 Nb 10 O 29 @C HSR) using a simple electrospinning procedure. As anode material for lithium-ion batteries (LIBs), it delivers a high charge capacity of 259.7 mAh g −1 at 1 C with low capacity loss of 0.013% in long-term cycles. Increased the current density to 5 C, Ti 2 Nb 10 O 29 @C HSR can maintain a reversible capacity of 189.9 mAh g −1 , indicating its good rate performance. Additionally, this work uses in-situ X-ray diffraction (XRD) to provide an explanation for the lithium storage process in Ti 2 Nb 10 O 29 @C HSR, demonstrating the high reversibility during charge/discharge cycles. Therefore, Ti 2 Nb 10 O 29 @C HSR has outstanding cycle adaptability and structural reversibility to be a promising anode for LIBs.