典型文献
Bifunctional Lil additive for poly(ethylene oxide)electrolyte with high ionic conductivity and stable interfacial chemistry
文献摘要：
The development of polymer-based solid-state batteries is severely limited by the low ionic conductivity of solid polymer electrolyte and the instable interface between polymer electrolyte and Li-metal anode.In this work,lithium iodide(Lil)as a bifunctional additive was introduced into the poly(ethylene oxide)(PEO)-based electrolyte to improve the ionic conductivity and to construct a stable interphase at the Li/PEO interface.I-anions offer a strong electrostatic interaction with hydrogen atoms on PEO chains(HPEO)and forming massive I-H bonds that cross-link PEO chains,decrease crystallinity of PEO,and thus improve Li+interchain transport In addition,Lil participates in the formation of an inorganic-rich inter-phase layer,which decreases the energy barrier of Li+transport across the interface and thus inhibits the growth of lithium dendrites.As a result,the composite PEO electrolyte with 2 wt％Lil(PEO-2LiI)presents a very high ionic conductivity of 2.1×10-4 S cm-1 and a critical current density of 2.0 mA cm-2 at 45℃.Li symmetric cell with this PEO-2LiI electrolyte exhibits a long-term cyclability over 600 h at 0.2 mA cm-2.Furthermore,solid-state LiFePO4 and LiNi0.8Mn0.1Co0.1O2 batteries with the PEO-2Lil elec-trolyte show an impressive electrochemical performance with outstanding cycling stability and rate capability at 45℃.
文献关键词：
中图分类号：
作者姓名：
Haonan Wang;Tianyi Hou;Hang Cheng;Bowen Jiang;Henghui Xu;Yunhui Huang
作者机构：
School of Materials Science and Engineering,Huazhong University of Science and Technology,Wuhan 430000,Hubei,China
文献出处：
引用格式：
[1]Haonan Wang;Tianyi Hou;Hang Cheng;Bowen Jiang;Henghui Xu;Yunhui Huang-.Bifunctional Lil additive for poly(ethylene oxide)electrolyte with high ionic conductivity and stable interfacial chemistry)[J].能源化学,2022(08):218-224
A类：
Lil,HPEO,Li+interchain,2LiI,2Lil
B类：
Bifunctional,additive,ethylene,oxide,electrolyte,high,ionic,conductivity,interfacial,chemistry,development,polymer,solid,state,batteries,severely,limited,by,low,instable,interface,between,metal,anode,In,this,work,lithium,iodide,bifunctional,was,introduced,into,improve,construct,interphase,anions,offer,strong,electrostatic,interaction,hydrogen,atoms,chains,forming,massive,bonds,that,link,crystallinity,thus,addition,participates,formation,inorganic,rich,layer,which,decreases,energy,barrier,Li+transport,across,inhibits,growth,dendrites,result,composite,presents,very,critical,current,density,mA,symmetric,cell,exhibits,long,term,cyclability,over,Furthermore,LiFePO4,LiNi0,8Mn0,1Co0,1O2,show,impressive,electrochemical,performance,outstanding,cycling,stability,rate,capability
AB值：
0.495111
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