Electrochemical behavior of interconnected Ti2Nb10O29 nanoparticles for high-power Li-ion battery anodes

•Ti2Nb10O29 nanofibers and powders are fabricated by electrospinning and solid-state reaction process.•Linearly connected single crystal nanofibers are formed.•Rate capability and cycle stability of the nanofibers are enhanced compared to the powders.•Diffusion behaviors of Li ion through the Ti2Nb10O29 single crystallite are better than other samples.