Abstract
Titanium dioxide (TiO2)-based materials, including various polymorphic TiO2 and several titanates, have been extensively studied for potential negative electrode materials for next-generation lithium ion batteries (LIBs). And it is indispensable to design a reasonable nanostructure. Novel nano-heterostructures composed of TiO2 nanosheets on the surface of carbon nanofibers (CNF) have been synthesized by growing hydrogen titanate nanosheets on the CNF backbone, and then followed by thermal conversion to TiO2 nanosheets. Owing to their structural advantages, the hybrid CNF@TiO2 electrode delivers high capacities of 292 mAh g−1 at a current density of 200 mA g−1 with outstanding capacity retention over 200 cycles.
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