典型文献
Safety-enhanced Polymer Electrolytes with High Ambient-temperature Lithium-ion Conductivity Based on ABA Triblock Copolymers
文献摘要：
Liquid electrolytes used in lithium-ion batteries suffer from leakage,flammability and lithium dendrites,making polymer electrolyte a potential alternative.Herein,a series of ABA triblock copolymers (ABA-x) containing a mesogen-jacketed liquid crystalline polymer (MJLCP) with a polynorbornene backbone as segment A and a second polynorbornene-based polymer having poly(ethylene oxide) (PEO) side chains as segment B were synthesized through tandem ring-opening metathesis polymerizations.The block copolymers can self-assemble into ordered morphologies at 200 ℃.After doping of lithium salts and ionic liquid (IL),ABA-x self-assembles into cylindrical structures.The MJLCP segments with a high glass transition temperature and a stable liquid crystalline phase serve as physical crosslinking points,which significantly improve the mechanical performance of the polymer electrolytes.The ionic conductivity of ABA-x/lithium salt/IL is as high as 10-3 S·cm-1 at ambient temperature owing to the high IL uptake and the continuous phase of conducting PEO domains.The relationship between ionic conductivity and temperature fits the Vogel-Tamman-Fulcher (VTF) equation.In addition,the electrolyte films are flame retardant owing to the addition of IL.The polymer electrolytes with good safety and high ambient-temperature ionic conductivity developed in this work are potentially useful in solid lithium-ion batteries.
文献关键词：
中图分类号：
作者姓名：
Dong Liu;Fan Wu;Zhi-Hao Shen;Xing-He Fan
作者机构：
Beijing National Laboratory for Molecular Sciences,Key Laboratory of Polymer Chemistry and Physics of Ministry of Education,Center for Soft Matter Science and Engineering,College of Chemistry and Molecular Engineering,Peking University,Beijing 100871,China
文献出处：
引用格式：
[1]Dong Liu;Fan Wu;Zhi-Hao Shen;Xing-He Fan-.Safety-enhanced Polymer Electrolytes with High Ambient-temperature Lithium-ion Conductivity Based on ABA Triblock Copolymers)[J].高分子科学（英文版）,2022(01):21-28
A类：
Triblock,triblock,mesogen,jacketed,MJLCP,polynorbornene,Tamman,Fulcher
B类：
Safety,enhanced,Polymer,Electrolytes,High,Ambient,temperature,Lithium,Conductivity,Based,ABA,Copolymers,Liquid,electrolytes,used,lithium,batteries,suffer,from,leakage,flammability,dendrites,making,alternative,Herein,series,copolymers,containing,liquid,crystalline,backbone,second,having,ethylene,oxide,PEO,side,chains,were,synthesized,through,tandem,ring,opening,metathesis,polymerizations,self,into,ordered,morphologies,After,doping,salts,ionic,assembles,cylindrical,structures,segments,high,glass,transition,stable,phase,serve,physical,crosslinking,points,which,significantly,improve,mechanical,performance,conductivity,ambient,owing,uptake,continuous,conducting,domains,relationship,between,fits,Vogel,VTF,equation,In,addition,films,are,flame,retardant,good,safety,developed,this,work,potentially,useful,solid
AB值：
0.521469
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