Data from: Electrospinning preparation of oxygen-deficient nano TiO2-x/carbon fibre membrane as a self-standing high performance anode for Li-ion batteries

Improving the specific capacity and electronic conductivity of TiO2 can
boost its practical application as a promising anode material for lithium
ion batteries. In this work, a three-dimensional networking
oxygen-deficient nano TiO2-x/carbon fibre membrane was achieved by
combining the electrospinning process with a hot-press sintering method
and directly used as a self-standing anode. With the synergistic effects
of three-dimensional conductive networks, surface oxygen deficiency, high
specific surface area and high porosity, binder-free and self-standing
structure, etc., the nano TiO2-x/carbon fibre membrane electrode displays
a high electrochemical reaction kinetics and a high specific capacity. The
reversible capacity could be jointly generated from porous carbon,
full-lithiation of TiO2 and interfacial lithium storage. At a current
density of 100 mA g−1, the reversible discharge capacity can reach
464 mA h g−1. Even at 500 mA g−1, the discharge capacity still remains at
312 mA h g−1. Compared with pure carbon fibre and TiO2 powder, the
TiO2-x/C fibre membrane electrode also exhibits an excellent cycle
performance with a discharge capacity of 209 mA h g−1 after 700 cycles at
the current density of 300 mA g−1, and the coulombic efficiency always
remains at approximately 100%.