典型文献
A one-for-all strategy of polyimide coating layer for resolving the comprehensive issues of phosphorus anode
文献摘要:
Phosphorus is a promising anode with high capacity(2596 mAh g-1 and 6075~6924 mAh cm-3),low lithium-ion diffusion barrier(0.08 eV),and appropriate lithiation potential(~0.7 V vs Li+/Li).However,it faces the problems of huge volume expansion(~300%),low electronic conductivity(1014~102 S cm-1),soluble intermediates(lithium polyphosphides,LixPs),degradation in air,and low thermal stabil-ity.In this work,phosphorus/carbon nanotube composites were coated with a polyimide layer,which plays the roles of a buffer layer to relieve the volume expansion of phosphorus,an obstruct layer to con-fine LixPs,an inert layer to prevent the degradation of phosphorus in air,a heat resistant layer to improve the thermal stability of the anode.The resulting composites(P/CNT@PI)display high capacity retention of 798.1 mAh g-1 after 150 cycles at 1 A g-1,achieving 17 times as much as the control sample(P/CNT).
文献关键词:
中图分类号:
作者姓名:
Muyao Han;Shaojie Zhang;Yu Cao;Chengyu Han;Xu Li;Yiming Zhang;Zhanxu Yang;Jie Sun
作者机构:
Key Laboratory for Green Chemical Technology of Ministry of Education,School of Chemical Engineering and Technology,Tianjin University,Tianjin 300350,China;School of Petrochemical Engineering,Liaoning Petrochemical University,No.1 West Dandong Rd.,Wanghua District,Fushun 113001,Liaoning,China
文献出处:
引用格式:
[1]Muyao Han;Shaojie Zhang;Yu Cao;Chengyu Han;Xu Li;Yiming Zhang;Zhanxu Yang;Jie Sun-.A one-for-all strategy of polyimide coating layer for resolving the comprehensive issues of phosphorus anode)[J].能源化学,2022(07):276-282
A类:
polyphosphides,LixPs
B类:
one,all,strategy,polyimide,coating,layer,resolving,comprehensive,issues,phosphorus,anode,Phosphorus,promising,high,capacity,mAh,low,lithium,diffusion,barrier,eV,appropriate,lithiation,potential,Li+,However,faces,problems,huge,volume,expansion,electronic,conductivity,soluble,intermediates,degradation,air,thermal,In,this,work,carbon,nanotube,composites,were,coated,which,plays,roles,buffer,relieve,obstruct,fine,inert,prevent,heat,resistant,improve,stability,resulting,CNT,display,retention,after,cycles,achieving,times,as,much,control,sample
AB值:
0.560371
相似文献
机标中图分类号,由域田数据科技根据网络公开资料自动分析生成,仅供学习研究参考。