典型文献
Unprecedented strong and reversible atomic orbital hybridization enables a highly stable Li-S battery
文献摘要：
The shuttle effect and excessive volume change of the sulfur cathode severely impede the industrial implementation of Li-S batteries.It is still highly challenging to find an efficient way to suppress the shuttle effect and volume expansion.Here,we report,for the first time,an innovative atomic orbital hybridization concept to construct the hierarchical hollow sandwiched sulfur nanospheres with double-polyaniline layers as the cathode material for large-scale high-performance Li-S batteries.This hierarchically 3D,cross-linked and stable sulfur-polyaniline backbone with interconnected disulfide bonds provides a new type and strong intrinsic chemical confinement of sulfur owing to the atomic orbital hybridization of Li 2s,S 3p,C 2p and N 2p.Crucially,such atomic orbital hybridization of sulfur sandwiched in the double sulfur-polyaniline network is highly reversible during the discharge/charge process and can very efficiently suppress the shuttle effect and volume expansion,contributing to a very high capacity of 1142 mAh g-1 and an excellent stabilized capacity of 886 mAh g-1 at 0.2 C after 500 cycles with a suppressed volume expansion and an unprecedented electrode integrity.This innovative atomic orbital hybridization concept can be extended to the preparation of other electrode materials to eliminate the shuttle effect and volume expansion in battery technologies.The present work also provides a commercially viable and up-scalable cathode material based on this strong and highly reversible atomic orbital hybridation for large-scale high-performance Li-S batteries.
文献关键词：
中图分类号：
作者姓名：
Min Yan;Wenda Dong;Fu Liu;Lihua Chen;Tawfique Hasan;Yu Li;Bao-Lian Su
作者机构：
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology,Wuhan 430070,China;Hubei Key Laboratory of Plasma Chemistry and Advanced Materials,Hubei Engineering Technology Research Center of Optoelectronic and New Energy Materials,School of Materials Science and Engineering,Wuhan Institute of Technology,Wuhan 430205,China;School of Materials Science and Engineering,Zhejiang University,Hangzhou 310027,China;Cambridge Graphene Centre,University of Cambridge,Cambridge CB3 OFA,UK;Laboratory of Inorganic Materials Chemistry(CMI),University of Namur,Namur B-50000 Belgium
文献出处：
引用格式：
[1]Min Yan;Wenda Dong;Fu Liu;Lihua Chen;Tawfique Hasan;Yu Li;Bao-Lian Su-.Unprecedented strong and reversible atomic orbital hybridization enables a highly stable Li-S battery)[J].国家科学评论（英文版）,2022(07):109-119
A类：
hybridation
B类：
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AB值：
0.470057
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