N-doped porous carbon decorated with Fe2O3 via catalyzing polysulfide for high-performance lithium-sulfur batteries

被引:0
作者
Qiaorong Zhao
Sen Yang
Hui Wang
Hongwei Zhang
Xun Qiao
机构
[1] Xijing University,School of Mechanical Engineering
[2] Xi’an Aeronautical University,School of Materials Engineering
[3] Kaili Catalyst New Materials Co.,undefined
[4] Ltd.,undefined
来源
Ionics | 2023年 / 29卷
关键词
Carbon; Fe; O; Shuttle effect; Polysulfide; Conversion;
D O I
暂无
中图分类号
学科分类号
摘要
Limited due to the severe shuttle effect, the wide application of lithium-sulfur batteries is difficult to achieve. To overcome this problem, various materials with catalytic effect are developed to inhibit the polysulfide shuttle effect. Herein, we synthesized N-doped porous carbon/Fe2O3 composite (NPC/FO)–efficient catalysts to promote the polysulfide conversion during the electrochemical cycles. Owing to the superior catalytic effect of NPC/FO composite host, the polysulfide shuttle effect could be inhibited. As a result, the as-prepared NPC/FO@S cathode delivered initial high capacity of 1288 mAh/g at 0.1 C. In addition, the NPC/FO@S cathode exhibits excellent rate performance and stable cycling performance. Our finding demonstrates that the N-doped porous carbon/Fe2O3 composites are new efficient host materials for lithium-sulfur batteries.
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页码:1013 / 1018
页数:5
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