典型文献
Solvating power regulation enabled low concentration electrolyte for lithium batteries
文献摘要：
Li+solvation structures have a decisive influence on the electrode/electrolyte interfacial properties and battery performances.Reduced salt concentration may result in an organic rich solid electrolyte interface(SEI)and catastrophic cycle stability,which makes low concentration electrolytes(LCEs)rather challeng-ing.Solvents with low solvating power bring in new chances to LCEs due to the weak salt-solvent inter-actions.Herein,an LCE with only 0.25 mol L-1 salt is prepared with fluoroethylene carbonate(FEC)and 1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropylether(D2).Molecular dynamics simulations and experi-ments prove that the low solvating power solvent FEC not only renders reduced desolvation energy to Li+and improves the battery kinetics,but also promotes the formation of a LiF-rich SEI that hinders the elec-trolyte consumption.Li||Cu cell using the LCE shows a high coulombic efficiency of 99.20％,and LiNi0.6Co0.2Mn0.2O2||Li cell also exhibits satisfying capacity retention of 89.93％in 200 cycles,which demonstrates the great potential of solvating power regulation in LCEs development.
文献关键词：
中图分类号：
作者姓名：
Linshan Peng;Xiangkun Wu;Mengmin Jia;Weiwei Qian;Xiaoyan Zhang;Na Zhou;Lan Zhang;Cuiying Jian;Suojiang Zhang
作者机构：
CAS Key Laboratory of Green Process and Engineering,Beijing Key Laboratory of Ionic Liquids Clean Process,State Key Laboratory of Multiphase Complex Systems,Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China;School of Chemical Engineering,University of Chinese Academy of Sciences,Beijing 100049,China;Langfang Green Industrial Technology Center,Langfang 065001,China;Shaanxi Key Laboratory of Energy Chemical Process Intensification,School of Chemical Engineering and Technology,Xi'an Jiaotong University,Xi'an 710049,China;Department of Mechanical Engineering,Lassonde School of Engineering,York University,Toronto ON M3J 1P3,Canada fHenan Key Laboratory of Energy Storage Materials and Processes,Zhengzhou Institute of Emerging Industrial Technology,Zhengzhou 450003,China
文献出处：
引用格式：
[1]Linshan Peng;Xiangkun Wu;Mengmin Jia;Weiwei Qian;Xiaoyan Zhang;Na Zhou;Lan Zhang;Cuiying Jian;Suojiang Zhang-.Solvating power regulation enabled low concentration electrolyte for lithium batteries)[J].科学通报（英文版）,2022(21):2235-2244
A类：
Solvating,solvating,tetrafluoroethyl,tetrafluoropropylether
B类：
power,regulation,enabled,low,concentration,lithium,batteries,Li+solvation,structures,have,decisive,influence,electrode,interfacial,properties,battery,performances,Reduced,salt,may,result,organic,rich,solid,interface,SEI,catastrophic,stability,which,makes,electrolytes,LCEs,rather,challeng,Solvents,bring,new,chances,due,weak,solvent,actions,Herein,only,prepared,fluoroethylene,carbonate,FEC,D2,Molecular,dynamics,simulations,experi,ments,that,not,renders,reduced,desolvation,energy,Li+and,improves,kinetics,but,also,promotes,formation,LiF,hinders,consumption,cell,using,shows,high,coulombic,efficiency,LiNi0,6Co0,2Mn0,2O2,exhibits,satisfying,capacity,retention,cycles,demonstrates,great,potential,development
AB值：
0.594739
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