Zhang, Yufei, Zhang, Na, Chen, Jin, Zhang, Tiezhu, Ge, Wenqing, Zhang, Weimin, Xie, Gang, Zhang, Lipeng, and He, Yinghe (2020) Preparation and lithium storage properties of C@TiO₂/3D carbon hollow sphere skeleton composites. Journal of Alloys and Compounds, 815. 152511.

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Abstract

Rational design and facile synthesis of hybrid TiO₂ anode materials with high electrical conductivity and ionic accessibility are urgently desired to construct high performance litium-ion batteries. In this work, We first utilize conductive hollow porous pollen carbon microsphere as skeleton to load C@TiO₂ nanoparticles. The C@TiO₂/3D pollen carbon (CTPC) composite with hollow porous structure has been successfully developed via a simple method. As a result, CTPC-700 (calcination temperature of 700°C) electrode material exhibits superior electrochemical performance for lithium ion batteries, delivering an outstanding specific capacity of 148 mA h g(⁻¹) up to 1000 cycles at 5.0C and a superior high-rate performance of 112 mA h g(⁻¹) at 10.0C. Therefore, the special structure of the as-prepared composites can improve the stability of the electrode and enhance its electrochemical performance, which is promising for the next-generation of lithium-ion batteries.

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