典型文献
An in-situ generated composite solid-state electrolyte towards high-voltage lithium metal batteries
文献摘要:
The solid-state electrolyte(SSE)has promising applications in next-generation lithium(Li)metal batteries(LMBs)because of its significantly enhanced safety and more compatible interface characteristics than flammable traditional liquid electrolytes.However,only a few attempts have achieved high-performance high-voltage LMBs,which is attributed to the fact that both high ionic conductivity and good compatibility with electrodes can hardly be achieved simultaneously.Herein,a composite solid-state electrolyte(CSE)based on star-shaped siloxane-based polymer electrolyte coupled with Li6.75La3Zr1.75Ta0.25O12(LLZTO)ceramic fillers is designed and prepared through a facile in-situ polymerization method.The obtained CSE exhibits high ionic conductivity(i.e.,1.68×10-4 S cm-1 at a temperature of 60℃),superior anodic stability,and high Li-ion transference number(i.e.,0.53)because of the multifunctional synergistic effect of the polymer electrolyte with LLZTO ceramic fillers.Moreover,the as-developed CSE shows excellent compatibility with Li anodes.As a result,the as-developed CSE enables the development of long-life 4.4-V-class solid-state LMBs with a LiCoO2 cathode,with 79.7%capacity retention and 99.74%average Coulombic efficiency after 500 cycles at a 0.5 C rate.Postmortem analysis of cycled batteries confirms that such superior battery perfor-mance can be mainly ascribed to the formation of a compatible electrode/electrolyte interface.Furthermore,excellent safety features can be observed in LiCoO2/Li pouch batteries.This work provides an important guide for the rational design of SSEs for high-voltage LMBs.
文献关键词:
中图分类号:
作者姓名:
Qinglei Wang;Tiantian Dong;Qian Zhou;Zili Cui;Xuehui Shangguan;Chenglong Lu;Zhaolin Lv;Kai Chen;Lang Huang;Huanrui Zhang;Guanglei Cui
作者机构:
Qingdao Industrial Energy Storage Research Institute,Qingdao Institute of Bioenergy and Bioprocess Technology,Chinese Academy of Sciences,Qingdao 266100,China;School of Materials Science and Engineering,Linyi University,Linyi 276000,China;School of Materials Science and Engineering,Ocean University of China,Qingdao 266042,China
文献出处:
引用格式:
[1]Qinglei Wang;Tiantian Dong;Qian Zhou;Zili Cui;Xuehui Shangguan;Chenglong Lu;Zhaolin Lv;Kai Chen;Lang Huang;Huanrui Zhang;Guanglei Cui-.An in-situ generated composite solid-state electrolyte towards high-voltage lithium metal batteries)[J].中国科学:化学(英文版),2022(05):934-942
A类:
75La3Zr1,25O12
B类:
An,situ,generated,composite,solid,state,towards,high,voltage,lithium,metal,batteries,has,promising,applications,next,generation,LMBs,because,significantly,enhanced,safety,compatible,interface,characteristics,than,flammable,traditional,liquid,electrolytes,However,only,few,attempts,have,achieved,performance,which,attributed,fact,that,both,ionic,conductivity,good,compatibility,electrodes,hardly,simultaneously,Herein,CSE,star,shaped,siloxane,coupled,Li6,75Ta0,LLZTO,ceramic,fillers,designed,prepared,through,facile,polymerization,method,obtained,exhibits,temperature,superior,anodic,stability,transference,number,multifunctional,synergistic,effect,Moreover,developed,shows,excellent,anodes,result,enables,development,long,life,class,LiCoO2,cathode,capacity,retention,average,Coulombic,efficiency,after,cycles,Postmortem,analysis,cycled,confirms,such,battery,mainly,ascribed,formation,Furthermore,features,observed,pouch,This,work,provides,important,guide,rational,SSEs
AB值:
0.550075
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