典型文献
Na3Zr2Si2PO12 solid-state electrolyte with glass-like morphology for enhanced dendrite suppression
文献摘要：
Rechargeable batteries based on solid-state electrolytes are of great interest and importance for the next-generation energy storage due to their high energy output and improved safety.For building the solid-state batteries,Na3Zr2Si2PO12(NZSP)represents a promising candidate as it features high chemical stability against air exposure and a high Na+conductivity.NZSP pellets were usually calcined at a high temperature,and the high volatility of Na and P elements easily led to the formation of impurity phase.In this work,the effects of calcination temperature and stoichiometry on the phase purity and ionic conductivity of the NZSP electrolyte were studied.At an elevated sintering temperature,the NZSP electrolyte showed a high ionic conductivity owing to decreased porosity,and the highest ionic conductivity at 30℃was observed to be 2.75×10-5 S.cm-1 with an activation energy of 0.41 eV.For the stoichiometry,the introduction of 5 mol％excessive P results in formation of more Na3PO4 and glass-like phase at the grain boundary,which caused the blurred grain boundary and reduced grain bar-rier,and effectively suppressed Na dendrite growth,then accounted for improved cycling performance of a NallNa symmetric cell.Our work provided insights on reasonable design and preparation of NZSP electrolyte towards prac-tical realization of solid-state Na-metal batteries.
文献关键词：
中图分类号：
作者姓名：
Hang Su;Shi-Wei Zhang;Yi-Meng Liu;Chao Yang;Li-Xiao Zhang;Sen Xin;Ya You
作者机构：
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology,Wuhan 430070,China;CAS Key Laboratory of Molecular Nanostructure and Nanotechnology,CAS Research/Education Center for Excellence in Molecular Sciences,Institute of Chemistry,Chinese Academy of Sciences(CAS),Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China;International School of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China
文献出处：
引用格式：
[1]Hang Su;Shi-Wei Zhang;Yi-Meng Liu;Chao Yang;Li-Xiao Zhang;Sen Xin;Ya You-.Na3Zr2Si2PO12 solid-state electrolyte with glass-like morphology for enhanced dendrite suppression)[J].稀有金属（英文版）,2022(12):4086-4093
A类：
Na+conductivity,NallNa
B类：
Na3Zr2Si2PO12,solid,state,glass,like,morphology,enhanced,dendrite,suppression,Rechargeable,batteries,electrolytes,are,great,interest,importance,next,generation,energy,storage,due,their,output,improved,safety,For,building,NZSP,represents,promising,candidate,features,chemical,stability,against,air,exposure,pellets,were,usually,calcined,temperature,volatility,elements,easily,led,formation,impurity,phase,In,this,work,effects,calcination,stoichiometry,ionic,studied,At,elevated,sintering,showed,owing,decreased,porosity,highest,was,observed,be,activation,eV,introduction,excessive,results,more,Na3PO4,grain,boundary,which,caused,blurred,reduced,bar,rier,effectively,suppressed,growth,then,accounted,cycling,performance,symmetric,cell,Our,provided,insights,reasonable,design,preparation,towards,prac,tical,realization,metal
AB值：
0.559514
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