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. | |
发表期刊 | ACS OMEGA |
2022-09 | |
卷号 | 7期号:36页码:2147483647 |
ISSN | 2470-1343 |
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. |
学科领域 | Chemistry, Multidisciplinary |
DOI | 10.1021/acsomega.2c04415 |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000855059100001 |
论文分区 | 二类 |
力学所作者排名 | 1 |
RpAuthor | Chen, CG |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/90134 |
专题 | 非线性力学国家重点实验室 |
作者单位 | 1.[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 2.Wu, Baolin; Eichel, Ruediger-A.] Rhein Westfal TH Aachen, D-52074 Aachen, Germany 3.Danilov, Dmitri L.; Jiang, Ming; Notten, Peter H. L.] Eindhoven Univ Technol, NL-5600 MB Eindhoven, Netherlands 4.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China 5.Notten, Peter H. L.] Univ Technol Sydney, Sydney, NSW 2007, Australia |
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,2022,7,36,:2147483647. |
APA | Wu, Baolin.,Chen CG.,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(36),2147483647. |
MLA | Wu, Baolin,et al."Influence of the SEI Formation on the Stability and Lithium Diffusion in Si Electrodes".ACS OMEGA 7.36(2022):2147483647. |
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