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An insight into intrinsic interfacial properties between Li metals and Li10GeP2S12 solid electrolytest

文献类型：期刊论文

作者Chen, Bingbing1; Ju, Jiangwei1; Ma, Jun1; Zhang, Jianjun1; Xiao, Ruijuan2; Cui, Guanglei1; Chen, Liquan2
刊名PHYSICAL CHEMISTRY CHEMICAL PHYSICS
出版日期2017-12-14
卷号19期号:46页码:31436-31442
ISSN号1463-9076
DOI10.1039/c7cp05253g
文献子类Article
英文摘要Density functional theory simulations and experimental studies were performed to investigate the interfacial properties, including Lithium ion migration kinetics, between Lithium metal anode and saki electrolyte Li10GeP2S12(LGPS). The LGPS[001] Wane was chosen as the studied surface because the easiest Li+ migration pathway is along this direction. The electronic structure of the surface states indicated that the electrochemical stability was reduced at both the PS4- and GeS4-teminated surfaces. For the interface cases, the equilibrium interfacial structures of Lithium metal against the PS4-terminated LGPS[001] surface (Li/PS4 LGPS) and the GeS4-terminated LGPS[001] surface (Li/GeS4 LGPS) were revealed based on the structural relaxation and adhesion energy analysis. Solid electrolyte interphases were expected to be formed at both Li/PS4- LGPS and Li/GeS4-LGPS interfaces, resulting in an unstable state of interface and Large interfacial resistance, which was verified by the EIS results of the Li/LGPS/Li cell. In addition, the simulations of the migration kinetics show that the energy barriers for Li+ crossing the Li/GeS4 LGPS interface were relatively Low compared with the Li/PS4 LGPS interface. This may contribute to the formation of Ge-rich phases at the Li/LGPS interface, which can tune the interfacial structures to improve the ionic conductivity for future all-solid-state batteries. This work will offer a thorough understanding of the Li/LGPS interface, including local structures, electronic states and Li+ diffusion behaviors in all-solid-state batteries.
WOS关键词ION BATTERY ; CONDUCTOR LI10GEP2S12 ; SUPERIONIC CONDUCTOR ; STABILITY ; STORAGE ; LAYER ; ANODE
WOS研究方向Chemistry ; Physics
语种英语
WOS记录号WOS:000416425400046
出版者ROYAL SOC CHEMISTRY
资助机构National Natural Science Foundation for Distinguished Young Scholars of China(51625204) ; National Natural Science Foundation of China(51502319) ; Qingdao Key Lab of Solar Energy Utilization & Energy Storage Technology ; China Postdoctoral Science Foundation - Chinese Academy of Sciences (CPSF-CAS) Joint Foundation for Excellent Postdoctoral Fellows ; China Postdoctoral Science Foundation(2017M612366)
源URL[http://ir.qibebt.ac.cn/handle/337004/10477]  
专题青岛生物能源与过程研究所_仿生能源与储能系统团队
通讯作者Xiao, Ruijuan; Cui, Guanglei
作者单位1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao Ind Energy Storage Res Inst, Qingdao 266101, Peoples R China
2.Chinese Acad Sci, Beijing Key Lab New Energy Mat & Devices, Natl Lab Condensed Matter Phys, Key Lab Renewable Energy,Inst Phys, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Bingbing,Ju, Jiangwei,Ma, Jun,et al. An insight into intrinsic interfacial properties between Li metals and Li10GeP2S12 solid electrolytest[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2017,19(46):31436-31442.
APA Chen, Bingbing.,Ju, Jiangwei.,Ma, Jun.,Zhang, Jianjun.,Xiao, Ruijuan.,...&Chen, Liquan.(2017).An insight into intrinsic interfacial properties between Li metals and Li10GeP2S12 solid electrolytest.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,19(46),31436-31442.
MLA Chen, Bingbing,et al."An insight into intrinsic interfacial properties between Li metals and Li10GeP2S12 solid electrolytest".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 19.46(2017):31436-31442.

入库方式： OAI收割

来源：青岛生物能源与过程研究所

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