Volume 7, Issue 12 1900574
Review

Factors of Kinetics Processes in Lithium–Sulfur Reactions

Xiaonan Tang

Xiaonan Tang

School of Chemical Engineering, Shandong University of Technology, Zibo, 255049 China

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

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Zichen Xu

Zichen Xu

School of Chemical Engineering, Shandong University of Technology, Zibo, 255049 China

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Zhenhua Sun

Zhenhua Sun

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, 72 Wenhua Road, Shenyang, 110016 China

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Jin Zhou

Jin Zhou

School of Chemical Engineering, Shandong University of Technology, Zibo, 255049 China

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Xiaozhong Wu

Xiaozhong Wu

School of Chemical Engineering, Shandong University of Technology, Zibo, 255049 China

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Hongtao Lin

Hongtao Lin

School of Chemical Engineering, Shandong University of Technology, Zibo, 255049 China

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Junfeng Rong

Junfeng Rong

Research Institute of Petroleum Processing, Sinopec, Beijing, 100083 China

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Shuping Zhuo

Corresponding Author

Shuping Zhuo

School of Chemical Engineering, Shandong University of Technology, Zibo, 255049 China

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Feng Li

Corresponding Author

Feng Li

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, 72 Wenhua Road, Shenyang, 110016 China

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First published: 05 September 2019
Citations: 25

Abstract

Lithium–Sulfur (Li–S) batteries are among the most promising next-generation secondary battery technologies due to their high theoretical energy density. However, the Li–S reaction is a multistep process and a solid–liquid–solid phase transition process, relating to complex reaction kinetics. Moreover, the poor conductivity of sulfur hinders effective electron transport, and large volume expansion leads to electrode pulverization, causing the electrode to lose effective electrical contact, which decreases the kinetics. In this review, the factors influencing kinetics processes in Li–S electrochemistry are reviewed, starting from the design of sulfur host materials, along with electrode structure. Then, the cell design including electrolyte, interlayer, etc., is discussed further. Finally, insights on how to improve the kinetics are provided, which is expected to provide direction for further kinetic investigation of Li–S batteries.

Conflict of Interest

The authors declare no conflict of interest.

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