Recent Progress on TiO₂-Based Anode Materials for Sodium-Ion Batteries

Authors

Si-tian LIAN, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, P. R. China;
Jian-shuai LV, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, P. R. China;
Qiang YU, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, P. R. China;
Guang-wu HU, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, P. R. China;
Zhuo CHEN, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, P. R. China;
Liang ZHOU, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, P. R. China;Follow
Li-qiang MAI, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, P. R. China;Follow

Corresponding Author

Liang ZHOU(liangzhou@whut.edu.cn);
Li-qiang MAI(mlq518@whut.edu.cn)

Abstract

Titanium dioxide (TiO₂) represents a stable, low-cost, and nontoxic anode material for sodium-ion batteries (SIBs). However, the low electrical conductivity limits its electrochemical activity (specific capacity) and rate capability, hindering its widespread applications. In this article, we show that different crystal forms of TiO₂ have different pore structures, resulting in the distinct sodium storage capacities. Accordingly, the article introduces how TiO₂ microstructures influence sodium storage. The nanoparticle structure can improve the rate performance of the material due to its short ion diffusion distance, and the internal cavity of the hollow structure is beneficial to cycle stability. In addition, we conclude that the conductivity of the material can be enhanced by oxygen defects or doping metals/non-metals. Lots of experimental results show that TiO₂ with carbon or metal composite structures has excellent electrochemical performance. In brief, this article comprehensively summarizes the effects of microstructure, oxygen vacancy, doping, and compositing on the conductivity and electrochemical performances of TiO₂-based anode materials. Beyond that, future research directions for TiO₂-based anode materials are also predicted at the end of this review.

Graphical Abstract

Keywords

TiO2, sodium-ion battery, nanocomposites, doping, oxygen vacancy

DOI Link

https://doi.org/10.13208/j.electrochem.180547

Publication Date

2019-02-28

Online Available Date

2018-08-30

Revised Date

2018-08-10

Received Date

2018-07-16

Recommended Citation

Si-tian LIAN, Jian-shuai LV, Qiang YU, Guang-wu HU, Zhuo CHEN, Liang ZHOU, Li-qiang MAI. Recent Progress on TiO₂-Based Anode Materials for Sodium-Ion Batteries[J]. Journal of Electrochemistry, 2019 , 25(1): 31-44.
DOI: 10.13208/j.electrochem.180547
Available at: https://jelectrochem.xmu.edu.cn/journal/vol25/iss1/3