Exceptional electrochemical performance of porous TiO2–carbon nanofibers for lithium ion battery anodes

摘要: We have developed one-dimensional (1D) porous TiO2–carbon nanofibers (ODPTCNs) by a simple coaxial electrospinning technique combined with subsequent calcination treatment as anode materials for Li-ion batteries. The prepared ODPTCNs contain plentiful surface pores through which lithium ions can transport from outer space into inner storage regions, thus activating all the materials. In addition, high conductivity of overall electrode and structure aid Li+ access rapid transportation ions, reducing diffusion paths yielding better rate capability. novel show remarkable specific reversible capacity ∼806 mA h g−1 volumetric ∼1.2 A cm−3, maintain ∼680 after 250 cycles at current density 100 exhibit an exceptional discharge capability 5 while retaining ∼260 1600 cycles. will serve excellent next-generation, high-power, environmentally benign