典型文献
Lithium-conductive LiNbO3 coated high-voltage LiNi0.5Co0.2Mn0.3O2 cathode with enhanced rate and cyclability
文献摘要：
LiNi0.5Co0.2Mn0.3O2(NCM523)cathode materials can operate at extremely high voltages and have exceptional energy density.However,their use is limited by inherent structure instability during charge/discharge and exceptionally oxidizing Ni4+at the surface.Herein,we have developed a citrate-assisted deposition concept to achieve a uniform lithium-conductive LiNbO3 coating layer on the NCM523 surface that avoids self-nucleation of Nb-contained compounds in solution reaction.The electrode-electrolyte interface is therefore stabilized by physically blocking the detrimental parasitic reactions and Ni4+dissolution whilst still maintaining high Li+conductivity.Consequently,the modified NCM523 exhibits an encouraging Li-storage specific capacity of 207.4 mAh g-1 at 0.2 C and 128.9 mAh g-1 at 10 C over the range 3.0-4.5 V.Additionally,a 92％capacity retention was obtained after 100 cycles at 1 C,much higher than that of the pristine NCM523(73％).This surface engineering strategy can be extended to modify other Ni-rich cathode materials with durable electrochemical performances.
文献关键词：
中图分类号：
作者姓名：
Haifeng Yu;Shouliang Wang;Yanjie Hu;Guanjie He;Le Quoc Bao;Ivan P.Parkin;Hao Jiang
作者机构：
Key Laboratory for Ultrafine Materials of Ministry of Education,Shanghai Engineering Research Center of Hierarchical Nanomaterials,School of Materials Science and Engineering,East China University of Science and Technology,Shanghai 200237,China;Christopher Ingold Laboratory,Department of Chemistry,University College London,20 Gordon Street,London,WC1H 0AJ,UK;Faculty of Applied Sciences,Ton Duc Thang University,19 Nguyen Huu Tho,District 7,Ho Chi Minh City,Viet Nam
文献出处：
引用格式：
[1]Haifeng Yu;Shouliang Wang;Yanjie Hu;Guanjie He;Le Quoc Bao;Ivan P.Parkin;Hao Jiang-.Lithium-conductive LiNbO3 coated high-voltage LiNi0.5Co0.2Mn0.3O2 cathode with enhanced rate and cyclability)[J].绿色能源与环境（英文）,2022(02):266-274
A类：
Ni4+at,Ni4+dissolution
B类：
Lithium,conductive,LiNbO3,coated,LiNi0,5Co0,2Mn0,3O2,cathode,enhanced,cyclability,NCM523,materials,can,operate,extremely,voltages,have,energy,density,However,their,use,limited,by,inherent,structure,instability,during,discharge,exceptionally,oxidizing,surface,Herein,developed,citrate,assisted,deposition,concept,achieve,uniform,lithium,coating,layer,that,avoids,self,nucleation,contained,compounds,electrode,electrolyte,interface,therefore,stabilized,physically,blocking,detrimental,parasitic,reactions,whilst,still,maintaining,Li+conductivity,Consequently,modified,exhibits,encouraging,storage,specific,capacity,mAh,over,range,Additionally,retention,was,obtained,after,cycles,much,higher,than,pristine,This,engineering,strategy,be,extended,modify,other,rich,durable,electrochemical,performances
AB值：
0.656
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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。
