Volume 39, Issue 5 pp. 1138-1144
Concise Report

CoSe2/MoS2 Heterostructures to Couple Polysulfide Adsorption and Catalysis in Lithium-Sulfur Batteries

Zihan Shen

Zihan Shen

National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Institute of Materials Engineering, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, Jiangsu, 210046 China

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Qingwen Zhou

Qingwen Zhou

National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Institute of Materials Engineering, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, Jiangsu, 210046 China

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Huiling Yu

Huiling Yu

National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Institute of Materials Engineering, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, Jiangsu, 210046 China

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Jiaming Tian

Jiaming Tian

National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Institute of Materials Engineering, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, Jiangsu, 210046 China

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Man Shi

Man Shi

State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190 China

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Chaoquan Hu

Corresponding Author

Chaoquan Hu

State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190 China

Nanjing IPE Institute of Green Manufacturing Industry, Nanjing, Jiangsu, 211100 China

E-mail: [email protected]; [email protected]Search for more papers by this author
Huigang Zhang

Corresponding Author

Huigang Zhang

National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Institute of Materials Engineering, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, Jiangsu, 210046 China

E-mail: [email protected]; [email protected]Search for more papers by this author
First published: 05 January 2021
Citations: 17

Dedicated to the Special Issue of Nanostructured Materials for Electrochemical Energy Conversion and Storage.

Main observation and conclusion

Lithium-sulfur batteries have been regarded as one of most promising next-generation energy storage devices because of their high energy density and low cost. However, polysulfide shuttling and slow kinetics hinder the practical application. We fabricated hierarchically heterostructured CoSe2/MoS2 nanoarrays on carbon clothes as the sulfur cathode host. The resulting heterostructures facilitate electron conduction and improve electrolyte wetting. More importantly, the composite heterostructures couple the strong polysulfide adsorption of CoSe2 and high catalytic activity of MoS2 to synergistically accelerate polysulfide conversion, demonstrating higher catalytic activity than their individual components.image

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