Oriented structural design of MXene electrodes for lithium sulfur catalysis

• Main Authors: Wang, Yu, Li, Jiaming, Gu, Qinhua, Liu, Zhilin, Zhang, Hengrui, Zheng, Shunri, Xu, Shichong, Tan, Kar Ban, Luo, Yaxiao, Yu, Zhaoliang, Li, Haibo, Han, Wenjuan, Zhang, Mingzhe, Lu, Ming, Zhang, Bingsen
• Format: Article
• Language: English
• Published: Elsevier 2024
• Online Access: http://psasir.upm.edu.my/id/eprint/113266/3/113266.pdf; http://psasir.upm.edu.my/id/eprint/113266/; https://www.sciencedirect.com/science/article/pii/S2095495624005114
• Institution: Universiti Putra Malaysia

The lithium-sulfur reaction can contribute to the chemical electrical energy conversion capacity due to the multi-level ion/electron transfer process. However, the appearance of soluble intermediate products prevents efficient electron transfer, making it impossible to achieve stable cycling and capacity contribution. Restricted catalysis provides a solution for inhibiting the shuttle of soluble lithium polysulfides. Herein, MXene aerogel with optimized channel utilization is designed as S host according to the polysulfide control strategy of localization, adsorption, and catalysis. With the help of the results of oriented channels, the polysulfide conversion process is optimized, providing a comprehensive scheme for inhibiting the shuttle effect. Lithium sulfur catalytic batteries have achieved high capacity and stable cycling. This system provides a comprehensive solution for lithium sulfur reaction catalysis and a new perspective for the functional application of MXene based lithium sulfur batteries.