Research Progress on Lithium Titanate as Anode Material for Sodium-ion Batteries

被引：0
|
作者：
Liang K. [1 ,2 ]
Ren Y. [1 ]
Tang Y. [2 ]
Sun D. [2 ]
Jia S. [3 ]
Wang H. [2 ]
Huang X. [4 ]
机构：
[1] Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, School of Materials Science and Engineering, Changzhou University, Changzhou
[2] Hunan Provincial Key Laboratory of Chemical Power Sources, College of Chemistry and Chemical Engineering, Central South University, Changsha
[3] Lite-On OPTO (CZ) Co., Ltd, Changzhou
[4] Hunan Province Cooperative Innovation Center for the Construction & Development of Dongting Lake Ecological Economic Zone, Hunan Provincial Key Laboratory of Water Treatment Functional Materials, Hunan Province Engineering Research Center of Electroplating
来源：
Cailiao Daobao/Materials Reports | 2020年 / 34卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Anode material; Conductivity; Lithium titanate; Sodium-ion battery; Synthetic methods;
D O I：
10.11896/cldb.19010208
中图分类号：
学科分类号：
摘要：
Sodium-ion batteries (SIBs) have good application prospects in the field of large-scale energy storage owing to the advantages of sodium abundant resources and low cost. In SIBs, anode materials show an important influence on the energy density and cycle performance of the batteries. Among these anode materials, spinel Li4Ti5O12(LTO) is considered as a promising candidate due to its excellent cycle performance and relatively high discharge potential. However, it exhibits poor electronic conductivity since the orbit of titanium in Li4Ti5O12 lacks electrons. Also, the ion diffusion resistance is large during the deintercalation process and thus the lattice distortion tends to happen due to the large radius of sodium ions. In recent years, the sodium storage mechanism of Li4Ti5O12 has been deeply studied. From the structural point of view, more breakthroughs have been made to significantly improve the electrochemical performance of Li4Ti5O12 in sodium-ion batteries. How to realize the Li4Ti5O12 with a high rate performance to construct an advanced sodium-ion battery for large-scale energy storage is still a challenge. At present, the strategies to improve the sodium storage performance of Li4Ti5O12 include: (i) surface coating and ion doping to increase the ion diffusion rate and electron conductivity, and to alleviate the lattice distortion during sodium encapsulation; (ii) designing nano-sized Li4Ti5O12 materials to improve the properties of materials by shortening the ion diffusion distance and increasing the contact area with electrolyte. In this paper, the recent research progress of Li4Ti5O12 as anode material for sodium-ion batteries is reviewed, focusing on the structure and electrochemical properties of Li4Ti5O12, synthesis methods, modification research and so on. The future research and application of Li4Ti5O12 in the anode material of sodium-ion battery are prospected. © 2020, Materials Review Magazine. All right reserved.
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页码：9041 / 9047
页数：6
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