Preparation and lithium storage properties of C@TiO₂/3D carbon hollow sphere skeleton composites

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.

Item ID: 61434
Item Type: Article (Research - C1)
ISSN: 1873-4669
Keywords: Hollow 3D pollen carbon, C@TiO₂, Solvothermal process, Lithium-ion battery
Copyright Information: ©2019 Elsevier B.V. All rights reserved.
Funders: National Natural Science Foundation of China (NNSFC), National Key Research and Development Program of China (NKRDP), Shandong Province National Natural Science Foundation (SPNNSF), Key Research and Development Program of Shandong Province (KRDPSP)
Projects and Grants: NNSFC 51574160, NKRDP 2017YFB0102004, SPNNSF ZR2014EEM049, KRDPSP 2017CSGC0502, 2017GGX40102, Leading talents project: science and technology talents and platform plan-training of science and technology talent (2017HA012), State Key Laboratory of Pressure Hydrometallurgical Technology of Associated Nonferrous Metal Resources (yy20160010)
Date Deposited: 15 Jan 2020 07:33
FoR Codes: 40 ENGINEERING > 4004 Chemical engineering > 400404 Electrochemical energy storage and conversion @ 100%
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