Volume 10, Issue 12 2200800
Research Article

Lithium-Rich Li[Li0.2Ni0.2Mn0.6]O2/Hierarchical Porous Graphitic Carbon Composites Promoters for Polysulfides Regulation in Lithium–Sulfur Batteries

Haoxiang Zhong

Haoxiang Zhong

Key Laboratory of Renewable Energy, Guangdong Key Laboratory of New and Renewable Energy Research and Development, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, Guangdong, 510640 China

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Qianqian Hu

Qianqian Hu

Traction Battery Integration and Test Department, GAC Automotive Research & Development Center, Guangzhou, 511434 China

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Lingzhi Zhang

Corresponding Author

Lingzhi Zhang

Key Laboratory of Renewable Energy, Guangdong Key Laboratory of New and Renewable Energy Research and Development, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, Guangdong, 510640 China

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First published: 25 September 2022

Abstract

The shuttle effect of polysulfides severely limits the practical application of lithium–sulfur batteries. Herein, the lithium-rich Li[Li0.2Ni0.2Mn0.6]O2/hierarchical porous graphitic carbon composite (LLNM/HPGC) is designed and synthesized as host material for lithium–sulfur batteries, aiming to restrict the shuttle effect of polysulfides via physical entrapment from 3D HPGC and accelerate the conversion of polysulfides from the lithium-rich LLNM as catalyst. Benefiting from the well-constructed host framework, 1glycerinum-LLNM/2HPGC@sulfur (1Gly-LLNM/2HPGC@S) shows higher specific capacity of 651 mAh g−1 after 200 cycles at 0.5C than that of 546.3, 422.8, 476, and 421.7 mAh g−1 for HPCG@S, Gly-LLNM@S, 1Gly-LLNM/3HPGC@S, and 1Gly-LLNM/5HPGC@S. Therefore, this work demonstrates a promising route to inhibit the shuttle effect of polysulfides for lithium–sulfur batteries.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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