典型文献
Revealing the interface-rectifying functions of a Li-cyanonaphthalene prelithiation system for SiO electrode
文献摘要：
Chemical prelithiation is regarded as a crucial method for improving the initial Coulombic efficiency(ICE)of Li-storage anodes.Herein,a substituent-engineered Li-cyanonaphthalene chemical prelithiation sys-tem is designed to simultaneously enhance the ICE and construct a multifunctional interfacial film for SiO electrodes.X-ray photoelectron spectroscopy(XPS),electron energy-loss spectroscopy(EELS),nuclear magnetic resonance(NMR)spectroscopy and atomic force microscopy(AFM)prove that the Li-cyanonaphthalene prelithiation reagent facilitates the formation of a rectified solid electrolyte interface(SEI)film in two ways:(1)generation of a gradient SEI film with an organic outer layer(dense N-containing organics,ROCO2Li)and an inorganic LiF-enriched inner layer;(2)homogenization of the hor-izontal distribution of the composition,mechanical properties and surface potential.As a result,the pre-lithiated SiO electrode exhibits an ICE above 100％,enhanced CEs during cycling,better cycle stability and inhibition of lithium dendrite formation in the overcharged state.Notably,the prelithiated hard carbon/SiO(9:1)||LiCoO2 cell displays an enhancement in the energy density of 62.3％.
文献关键词：
中图分类号：
作者姓名：
Yang Li;Yong Qian;Ya Zhao;Ning Lin;Yitai Qian
作者机构：
Department of Applied Chemistry,University of Science and Technology of China,Hefei 230026,China;Ningbo Veken New Energy Technology Co.,Ltd,Ningbo 315800,China
文献出处：
引用格式：
[1]Yang Li;Yong Qian;Ya Zhao;Ning Lin;Yitai Qian-.Revealing the interface-rectifying functions of a Li-cyanonaphthalene prelithiation system for SiO electrode)[J].科学通报（英文版）,2022(06):636-645
A类：
cyanonaphthalene,ROCO2Li,izontal,overcharged,prelithiated
B类：
Revealing,interface,rectifying,functions,prelithiation,system,SiO,Chemical,regarded,as,crucial,method,improving,initial,Coulombic,efficiency,ICE,storage,anodes,Herein,substituent,engineered,chemical,designed,simultaneously,construct,multifunctional,interfacial,film,electrodes,ray,photoelectron,spectroscopy,XPS,energy,loss,EELS,nuclear,magnetic,resonance,NMR,atomic,force,microscopy,AFM,prove,that,reagent,facilitates,formation,rectified,solid,electrolyte,SEI,two,ways,generation,gradient,outer,layer,dense,containing,organics,inorganic,LiF,enriched,inner,homogenization,hor,distribution,composition,mechanical,properties,surface,potential,result,exhibits,above,enhanced,CEs,during,cycling,better,cycle,stability,inhibition,lithium,dendrite,state,Notably,hard,carbon,LiCoO2,cell,displays,enhancement,density
AB值：
0.601469
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