典型文献
Interface stabilization of 1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropyl ether to high-voltage Li-rich Mn-based layered cathode materials
文献摘要：
Non-aqueous electrolyte solvents play a pivotal role in improving the cycling performance of high-voltage Li-rich Mn-based layered cathode materials.In this study,a fluo-roether(1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropyl ether,TFEPE)was added to 1.2 mol·L-1 LiPF6 EC/EMC/DEC at different concentrations to synthesize a series of electrolytes for enhancing the cycling performance of high-voltage Li1.18Mn0.50Ni0.26Co0.06O2(LMNC).Effects of TFEPE on the electrochemical performance of LMNC at 0.1C and 1.0C rates were investigated.Scanning electron microscopy was used to observe the surface morphology of LMNC before and after cycling.X-ray photoelectron spectroscopy was conducted to analyze the surface com-positions and chemical states,and transmission electron microscopy was performed to directly examine the changes in the structure of LMNC before and after cycling.Results suggested that TFEPE was preferentially oxidized and produced inorganic compounds(MeF and Li2CO3)on the surface of LMNC,which effectively inhibited the side reactions between LMNC and the electrolyte.MeF and Li2CO3 delayed the propagation of the phase transitions of LMNC primary particles from the surface to the bulk,thereby improving the cycling performance of LMNC.
文献关键词：
中图分类号：
作者姓名：
A-Lin Li;Guo-Hua Li;Shi-Gang Lu;Zhi-Min Ren;Jian-Tao Wang;Hao-Xiang Zhuo;Wei Quan;Gang-Ning Zhang;Fu-Juan Han;Yi-Mian Xia;Jing Wang;Yi Zhang
作者机构：
National Power Battery Innovation Center,Grinm Group Company Ltd,Beijing 100088,China;China Automotive Battery Research Institute Company Ltd,Beijing 101407,China;General Research Institute for Nonferrous Metals,Beijing 100088,China;Materials Genome Institute,Shanghai University,Shanghai 200444,China
文献出处：
引用格式：
[1]A-Lin Li;Guo-Hua Li;Shi-Gang Lu;Zhi-Min Ren;Jian-Tao Wang;Hao-Xiang Zhuo;Wei Quan;Gang-Ning Zhang;Fu-Juan Han;Yi-Mian Xia;Jing Wang;Yi Zhang-.Interface stabilization of 1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropyl ether to high-voltage Li-rich Mn-based layered cathode materials)[J].稀有金属（英文版）,2022(03):822-829
A类：
tetrafluoroethyl,tetrafluoropropyl,roether,TFEPE,18Mn0,50Ni0,06O2,LMNC,MeF
B类：
Interface,stabilization,high,voltage,rich,layered,cathode,materials,Non,aqueous,solvents,play,pivotal,role,improving,cycling,performance,this,study,was,added,LiPF6,EMC,DEC,different,concentrations,synthesize,series,electrolytes,enhancing,Li1,26Co0,Effects,electrochemical,1C,0C,rates,were,investigated,Scanning,microscopy,used,observe,surface,morphology,before,after,ray,photoelectron,spectroscopy,conducted,analyze,positions,states,transmission,performed,directly,examine,changes,structure,Results,suggested,that,preferentially,oxidized,produced,inorganic,compounds,Li2CO3,which,effectively,inhibited,side,reactions,between,delayed,propagation,phase,transitions,primary,particles,from,bulk,thereby
AB值：
0.445063
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