A 3D heterogeneous FeTiO3/TiO2@C fiber membrane as a self-standing anode for power Li-ion battery
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A three-dimensional (3D) networking FeTiO3/TiO2@C flexible fiber membrane was successfully fabricated by an electrospinning process and a controlled hot-press sintering method. This FeTiO3/TiO2@C fiber membrane displays a long-range continuous conductive networks, which can be directly used as self-standing anodes. The electrode sintered at 750 °C for 3 h possesses a reversible capacity of 205.4 mAh/g after 100 cycles at a current density of 300 mA/g. The superior cycle and rate performance can be attributed to the synergistic effect of little volume variation of TiO2 matrix, high capacity of FeTiO3 and good electrical conductivity of 3D networking.
The work was financially supported by National Natural Science Foundation of China (Grant no. 51474113, 51504101), the Natural Science Foundation of Jiangsu Province (Grant no. BK20150514), the Natural Science Research Program of Jiangsu Province Higher Education of China (Grant no. 14KJB430010). And we also thank the sponsorship of Jiangsu Overseas Research & Training Program for University Young & Middle-aged Teachers and Presidents.
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