典型文献
In situ Observation of Li Deposition-Induced Cracking in Garnet Solid Electrolytes
文献摘要：
Lithium(Li)penetration through solid electrolytes(SEs)induces short circuits in Li solid-state batteries(SSBs),which is a critical issue that hinders the development of high energy density SSBs.While cracking in ceramic SEs has been often shown to accompany Li penetration,the interplay between Li deposition and cracking remains elusive.Here,we constructed a mesoscale SSB inside a focused ion beam-scanning electron microscope(FIB-SEM)for in situ observation of Li deposition-induced cracking in SEs at nanometer resolution.Our results revealed that Li propagated predominantly along transgranular cracks in a garnet Li6.4La3Zr1.4Ta0.6O12(LLZTO).Cracks appeared to initiate from the interior of LLZTO beneath the electrode surface and then propagated by curving toward the LLZTO surface.The resulting bowl-shaped cracks resemble those from hydraulic fracture caused by high fluid pressure on the surface of internal cracks,suggesting that the Li deposition-induced pressure is the major driving force of crack initiation and propagation.The high pressure generated by Li deposition is further supported by in situ observation of the flow of filled Li between the crack flanks,causing crack widening and propagation.This work unveils the dynamic interplay between Li deposition and cracking in SEs and provides insight into the mitigation of Li dendrite penetration in SSBs.
文献关键词：
中图分类号：
作者姓名：
Jun Zhao;Yongfu Tang;Qiushi Dai;Congcong Du;Yin Zhang;Dingchuan Xue;Tianwu Chen;Jingzhao Chen;Bo Wang;Jingming Yao;Ning Zhao;Yanshuai Li;Shuman Xia;Xiangxin Guo;Stephen J.Harris;Liqiang Zhang;Sulin Zhang;Ting Zhu;Jianyu Huang
作者机构：
Clean Nano Energy Center,State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao 066004,China;Hebei Key Laboratory of Applied Chemistry,School of Environmental and Chemical Engineering,Yanshan University,Qinhuangdao 066004,China;Woodruff School of Mechanical Engineering,Georgia Institute of Technology,Atlanta Georgia 30332,USA;Department of Engineering Science and Mechanics,The Pennsylvania State University,University Park PA 16802,USA;College of Physics,Qingdao University,Qingdao 266071,China;Energy Storage Division,Lawrence Berkeley,National Laboratory,Berkeley CA 94720,USA;School of Materials Science and Engineering,Xiangtan University,Xiangtan 411105,China
文献出处：
引用格式：
[1]Jun Zhao;Yongfu Tang;Qiushi Dai;Congcong Du;Yin Zhang;Dingchuan Xue;Tianwu Chen;Jingzhao Chen;Bo Wang;Jingming Yao;Ning Zhao;Yanshuai Li;Shuman Xia;Xiangxin Guo;Stephen J.Harris;Liqiang Zhang;Sulin Zhang;Ting Zhu;Jianyu Huang-.In situ Observation of Li Deposition-Induced Cracking in Garnet Solid Electrolytes)[J].能源与环境材料（英文）,2022(02):524-532
A类：
curving
B类：
situ,Observation,Deposition,Induced,Cracking,Garnet,Solid,Electrolytes,Lithium,penetration,through,solid,electrolytes,SEs,induces,short,circuits,state,batteries,SSBs,which,critical,issue,that,hinders,development,high,energy,density,While,cracking,ceramic,has,been,often,shown,accompany,interplay,between,deposition,remains,elusive,Here,constructed,mesoscale,inside,focused,beam,scanning,electron,microscope,FIB,observation,induced,nanometer,resolution,Our,results,revealed,propagated,predominantly,along,transgranular,cracks,garnet,Li6,4La3Zr1,4Ta0,6O12,LLZTO,Cracks,appeared,initiate,from,interior,beneath,electrode,surface,then,by,toward,resulting,bowl,shaped,resemble,those,hydraulic,fracture,caused,fluid,pressure,internal,suggesting,major,driving,force,initiation,propagation,generated,further,supported,flow,filled,flanks,causing,widening,This,work,unveils,dynamic,provides,insight,into,mitigation,dendrite
AB值：
0.60466
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