Volume 5, Issue 6 2100193
Review

Controlled Hydrothermal/Solvothermal Synthesis of High-Performance LiFePO4 for Li-Ion Batteries

Zhaojin Li

Zhaojin Li

Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016 China

Hebei Key Laboratory of Flexible Functional Materials, School of Materials Science and Engineering, Hebei University of Science and Technology, Hebei, 050018 China

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Jinxing Yang

Jinxing Yang

Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016 China

School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016 China

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Tianjia Guang

Tianjia Guang

Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016 China

School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016 China

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Bingbing Fan

Bingbing Fan

School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001 China

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Kongjun Zhu

Kongjun Zhu

State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016 China

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Xiaohui Wang

Corresponding Author

Xiaohui Wang

Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016 China

E-mail: [email protected]

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First published: 07 May 2021
Citations: 36

Abstract

The sluggish Li-ion diffusivity in LiFePO4, a famous cathode material, relies heavily on the employment of a broad spectrum of modifications to accelerate the slow kinetics, including size and orientation control, coating with electron-conducting layer, aliovalent ion doping, and defect control. These strategies are generally implemented by employing the hydrothermal/solvothermal synthesis, as reflected by the hundreds of publications on hydrothermal/solvothermal synthesis in recent years. However, LiFePO4 is far from the level of controllable preparation, due to the lack of the understanding of the relations between the synthesis condition and the nucleation-and-growth of LiFePO4. In this paper, the recent progress in controlled hydrothermal/solvothermal synthesis of LiFePO4 is first summarized, before an insight into the relations between the synthesis condition and the nucleation-and-growth of LiFePO4 is obtained. Thereafter, a review over surface decoration, lattice substitution, and defect control is provided. Moreover, new research directions and future trends are also discussed.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

Research data are not shared.

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