典型文献
High area-capacity Mg batteries enabled by sulfur/copper integrated cathode design
文献摘要：
Rechargeable Mg batteries potentially display lower cost and competitive energy density compared with their Li-ion counterparts.However,the practical implementation of high area-capacity cathodes still remains a formidably challenging task.This work presents the sulfur/copper integrated cathodes fabri-cated by the conventional blade-coating process and slurry-dipping method.The sulfur/copper foil inte-grated cathodes deliver a high area-capacity of 2.6 mAh cm-2 after 40 cycles,while the sulfur/copper-foam integrated cathode exhibits an ultrahigh area-capacity of 35.4 mAh cm-2,corresponding to 743.1 Wh L-1 at the electrode level(1.5 times higher than the LiCoO2-graphite system).The in-situ formed cop-per sulfide intermediates with sufficient cation defects can act as functional intermediates to regulate the sulfur electrochemistry during the first discharge process.The subsequent cycles are operated by the reversible displacement reaction between Mg-ions and copper sulfide active substances.In particular,the copper ions prefer to extrude along the[001]direction in copper sulfides lattice and simultaneously the rock-salt MgS crystals are generated.Besides,the nonuniform surface topography of the cycled Mg-metal anode,caused by the spatial inhomogeneity in current distribution,is demonstrated to lead to the battery performance degradation for high area-capacity Mg batteries.
文献关键词：
中图分类号：
作者姓名：
Zhenfang Zhou;Aobing Du;Weijie Kong;Zhuang Chen;Zhonghua Zhang;Bingbing Chen;Yitao He;Shanmu Dong;Zhenjiang Li;Guicun Li;Guanglei Cui
作者机构：
College of Materials Science and Engineering,Qingdao University of Science and Technology,Qingdao 266042,Shandong,China;Qingdao Industrial Energy Storage Research Institute,Qingdao Institute of Bioenergy and Bioprocess Technology,Chinese Academy of Sciences,Qingdao 266101,Shandong,China;Department of Energy Science and Engineering,Nanjing Tech University,Nanjing 211816,Jiangsu,China;Department of Physics,Harbin Institute of Technology,Harbin 150001,Heilongjiang,China
文献出处：
引用格式：
[1]Zhenfang Zhou;Aobing Du;Weijie Kong;Zhuang Chen;Zhonghua Zhang;Bingbing Chen;Yitao He;Shanmu Dong;Zhenjiang Li;Guicun Li;Guanglei Cui-.High area-capacity Mg batteries enabled by sulfur/copper integrated cathode design)[J].能源化学,2022(09):370-378
A类：
formidably,extrude
B类：
High,area,capacity,batteries,enabled,by,sulfur,copper,integrated,design,Rechargeable,potentially,display,lower,cost,competitive,energy,density,compared,their,counterparts,However,practical,implementation,cathodes,still,remains,challenging,task,This,work,presents,fabri,cated,conventional,blade,coating,process,slurry,dipping,method,foil,deliver,mAh,after,cycles,while,foam,exhibits,ultrahigh,corresponding,Wh,electrode,level,times,higher,than,LiCoO2,graphite,system,situ,formed,intermediates,sufficient,cation,defects,can,functional,regulate,electrochemistry,during,first,discharge,subsequent,operated,reversible,displacement,reaction,between,ions,active,substances,In,particular,prefer,along,direction,sulfides,lattice,simultaneously,rock,salt,MgS,crystals,generated,Besides,nonuniform,surface,topography,cycled,metal,anode,caused,spatial,inhomogeneity,current,distribution,demonstrated,lead,battery,performance,degradation
AB值：
0.600319
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