Abstract
With a much higher theoretical capacity than that of graphite anodes, SnO2 has attained great attention as a potential anode material for next-generation lithium-ion batteries. However, it's practical application yet be impeded by such disadvantages of poor conductivity and terrible structure stability during repeated discharge/charge process. Herein, a unique TiO2/SnO2/C hybrid (TiO2 SS@SnO2@C) consist of one-dimensional TiO2 nanobelts, zero-dimensional SnO2 nanoparticles and conformal carbon coating has been fabricated based on a strategy of synergistic effect of components with different dimensional nanostructures, which can provide improved electrochemical kinetic and outstanding structure stability for the TiO2 SS@SnO2@C. As a result, the TiO2 SS@SnO2@C is able to exhibit outstanding lithium storage performance as an anode material, delivering capacities of 904.9 and 492.4 mAhh g−1 after even 400 cycles at 200 and even 1000 mA g−1, respectively. It is demonstrated that the synergistic effect of these components is responsible for thus outstanding electrochemical performance.
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