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典型文献
Efficient polysulfides conversion on Mo2CTx MXene for high-performance lithium-sulfur batteries
文献摘要:
The severe shuttle effect and sluggish redox kinetics of polysulfides hinder the application of lithium-sulfur bat-teries.Herein,delaminated Mo2CTx MXene nanosheets are derived by chemical etching approach and further applied as a sulfur host for sulfur spheres (S@Mo2CTx).In the MXene encapsulated architecture,the external MXene nanosheets not only immobilize the soluble polysulfides by strong chemical adsorption but also efficiently catalyze the liquid-liquid conversion and liquid-solid nucleation pro-cess of lithium polysulfides.In addition,the S@Mo2CTx electrode delivered fast charge and lithium-ion transport due to the superior electric conductivity and low lithium-ion diffusion energy barrier of MXene nanosheets.As a result,the S@Mo2CTx electrode exhibits a high reversible capacity of 918 mAh·g-1 at 1.0C with good cycling sta-bility and a high areal capacity of 7.0 mAh·cm-2 with sulfur loading of 7.4 mg·cm-2 under a lean electrolyte condition.
文献关键词:
作者姓名:
Qi Zhu;Hong-Fei Xu;Kai Shen;Yong-Zheng Zhang;Bin Li;Shu-Bin Yang
作者机构:
School of Materials Science and Engineering,Beihang University,Beijing 100191,China
引用格式:
[1]Qi Zhu;Hong-Fei Xu;Kai Shen;Yong-Zheng Zhang;Bin Li;Shu-Bin Yang-.Efficient polysulfides conversion on Mo2CTx MXene for high-performance lithium-sulfur batteries)[J].稀有金属(英文版),2022(01):311-318
A类:
Mo2CTx
B类:
Efficient,polysulfides,conversion,MXene,high,performance,lithium,sulfur,batteries,severe,shuttle,effect,sluggish,redox,kinetics,hinder,application,Herein,delaminated,nanosheets,derived,by,chemical,etching,approach,further,applied,host,spheres,In,encapsulated,architecture,external,not,only,immobilize,soluble,strong,adsorption,but,also,efficiently,catalyze,liquid,solid,nucleation,cess,addition,electrode,delivered,fast,charge,transport,due,superior,electric,conductivity,low,diffusion,energy,barrier,result,exhibits,reversible,capacity,mAh,0C,good,cycling,sta,bility,areal,loading,under,lean,electrolyte,condition
AB值:
0.565837
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