Influence of the SEI Formation on the Stability and Lithium Diffusion in Si Electrodes

doi:10.1021/acsomega.2c04415

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	Influence of the SEI Formation on the Stability and Lithium Diffusion in Si Electrodes
	Wu, Baolin ; Chen CG(陈春光); Danilov, Dmitri L.; Jiang, Ming ; Raijmakers, Luc H. J.; Eichel, Ruediger-A.; Notten, Peter H. L.
刊名	ACS OMEGA ; 36
	2022-09
卷号	7 页码:2147483647
ISSN号	2470-1343
DOI	10.1021/acsomega.2c04415
英文摘要	Silicon (Si) is an attractive anode material for Li-ion batteries (LIBs) due to its high theoretical specific capacity. However, the solid-electrolyte interphase (SEI) formation, caused by liquid electrolyte decomposition, often befalls Si electrodes. The SEI layer is less Li-ion conductive, which would significantly inhibit Li-ion transport and delay the reaction kinetics. Understanding the interaction between the SEI components and Li-ion diffusion is crucial for further improving the cycling performance of Si. Herein, different liquid electrolytes are applied to investigate the induced SEI components, structures, and their role in Li-ion transport. It is found that Si electrodes exhibit higher discharge capacities in LiClO4-based electrolytes than in LiPF6-based electrolytes. This behavior suggests that a denser and more conductive SEI layer is formed in LiClO4-based electrolytes. In addition, a coating of a Li3PO4 artificial SEI layer on Si suppresses the formation of natural SEI formation, leading to higher capacity retentions. Furthermore, galvanostatic intermittent titration technique (GITT) measurements are applied to calculate Li-ion diffusion coefficients, which are found in the range of 10(-23)-10(-19) m(2)/s.
学科主题	Chemistry, Multidisciplinary
分类号	二类
语种	英语
WOS记录号	WOS:000855059100001
其他责任者	Chen, CG ; Notten, PHL (corresponding author), Forschungszentrum Julich IEK 9, D-52425 Julich, Germany. ; Notten, PHL (corresponding author), Eindhoven Univ Technol, NL-5600 MB Eindhoven, Netherlands. ; Chen, CG (corresponding author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China. ; Notten, PHL (corresponding author), Univ Technol Sydney, Sydney, NSW 2007, Australia.
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/90134]
专题	力学研究所_非线性力学国家重点实验室
作者单位	1.Notten, Peter H. L.] Univ Technol Sydney, Sydney, NSW 2007, Australia 2.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China 3.Danilov, Dmitri L.; Jiang, Ming; Notten, Peter H. L.] Eindhoven Univ Technol, NL-5600 MB Eindhoven, Netherlands 4.Wu, Baolin; Eichel, Ruediger-A.] Rhein Westfal TH Aachen, D-52074 Aachen, Germany 5.[Wu, Baolin; Chen, Chunguang; Danilov, Dmitri L.; Jiang, Ming; Raijmakers, Luc H. J.; Eichel, Ruediger-A.; Notten, Peter H. L.] Forschungszentrum Julich IEK 9, D-52425 Julich, Germany
推荐引用方式 GB/T 7714	Wu, Baolin,Chen CG,Danilov, Dmitri L.,et al. Influence of the SEI Formation on the Stability and Lithium Diffusion in Si Electrodes[J]. ACS OMEGA, 36,2022,7:2147483647.
APA	Wu, Baolin.,陈春光.,Danilov, Dmitri L..,Jiang, Ming.,Raijmakers, Luc H. J..,...&Notten, Peter H. L..(2022).Influence of the SEI Formation on the Stability and Lithium Diffusion in Si Electrodes.ACS OMEGA,7,2147483647.
MLA	Wu, Baolin,et al."Influence of the SEI Formation on the Stability and Lithium Diffusion in Si Electrodes".ACS OMEGA 7(2022):2147483647.