Interplay between solid-electrolyte interphase and (in)active LixSi in silicon anode
Summary: Solid-electrolyte interphase (SEI) is regarded as the most important but the least understood part of lithium (Li)-ion batteries. A comprehensive understanding of the nature of the SEI and especially its interplay with active materials during cycling is crucial since it governs the charge t...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-12-01
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| Series: | Cell Reports Physical Science |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666386421003908 |
| _version_ | 1818965406357913600 |
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| author | Xiao Zhang Suting Weng Gaojing Yang Yejing Li Hong Li Dong Su Lin Gu Zhaoxiang Wang Xuefeng Wang Liquan Chen |
| author_facet | Xiao Zhang Suting Weng Gaojing Yang Yejing Li Hong Li Dong Su Lin Gu Zhaoxiang Wang Xuefeng Wang Liquan Chen |
| author_sort | Xiao Zhang |
| collection | DOAJ |
| description | Summary: Solid-electrolyte interphase (SEI) is regarded as the most important but the least understood part of lithium (Li)-ion batteries. A comprehensive understanding of the nature of the SEI and especially its interplay with active materials during cycling is crucial since it governs the charge transfer and Li+ transport. Herein, the dynamic interplay between SEI and silicon (Si) anode during cycling is revealed quantitatively and qualitatively by titration gas chromatography (TGC), cryogenic transmission electron microscopy (cryo-TEM), and other techniques to probe charge transfer, nanostructure, and equilibrium. The results show that it is difficult to construct an equilibrium interplay between the SEI and LixSi due to the intrinsic instability of some SEI components (e.g., Li2O and carbonates) and the pulverization of Si anode, resulting in the continuous formation of the SEI and inactive LixSi. The addition of fluoroethylene carbonate helps construct such equilibrium interplay through formation of a LiF-rich SEI, thus improving cyclability. |
| first_indexed | 2024-12-20T13:16:30Z |
| format | Article |
| id | doaj.art-046d39eddc944f57b7be21aff514e2f6 |
| institution | Directory Open Access Journal |
| issn | 2666-3864 |
| language | English |
| last_indexed | 2024-12-20T13:16:30Z |
| publishDate | 2021-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Cell Reports Physical Science |
| spelling | doaj.art-046d39eddc944f57b7be21aff514e2f62022-12-21T19:39:31ZengElsevierCell Reports Physical Science2666-38642021-12-01212100668Interplay between solid-electrolyte interphase and (in)active LixSi in silicon anodeXiao Zhang0Suting Weng1Gaojing Yang2Yejing Li3Hong Li4Dong Su5Lin Gu6Zhaoxiang Wang7Xuefeng Wang8Liquan Chen9Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, ChinaBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, ChinaBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, ChinaBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; Corresponding authorBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China; Tianmu Lake Institute of Advanced Energy Storage Technologies Co. Ltd., Liyang 213300, Jiangsu, ChinaBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, ChinaBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, ChinaBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China; Corresponding authorBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China; Tianmu Lake Institute of Advanced Energy Storage Technologies Co. Ltd., Liyang 213300, Jiangsu, China; Corresponding authorBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, ChinaSummary: Solid-electrolyte interphase (SEI) is regarded as the most important but the least understood part of lithium (Li)-ion batteries. A comprehensive understanding of the nature of the SEI and especially its interplay with active materials during cycling is crucial since it governs the charge transfer and Li+ transport. Herein, the dynamic interplay between SEI and silicon (Si) anode during cycling is revealed quantitatively and qualitatively by titration gas chromatography (TGC), cryogenic transmission electron microscopy (cryo-TEM), and other techniques to probe charge transfer, nanostructure, and equilibrium. The results show that it is difficult to construct an equilibrium interplay between the SEI and LixSi due to the intrinsic instability of some SEI components (e.g., Li2O and carbonates) and the pulverization of Si anode, resulting in the continuous formation of the SEI and inactive LixSi. The addition of fluoroethylene carbonate helps construct such equilibrium interplay through formation of a LiF-rich SEI, thus improving cyclability.http://www.sciencedirect.com/science/article/pii/S2666386421003908silicon anodesolid electrolyte interphasecryo-TEMtitration gas chromatographyTGC |
| spellingShingle | Xiao Zhang Suting Weng Gaojing Yang Yejing Li Hong Li Dong Su Lin Gu Zhaoxiang Wang Xuefeng Wang Liquan Chen Interplay between solid-electrolyte interphase and (in)active LixSi in silicon anode Cell Reports Physical Science silicon anode solid electrolyte interphase cryo-TEM titration gas chromatography TGC |
| title | Interplay between solid-electrolyte interphase and (in)active LixSi in silicon anode |
| title_full | Interplay between solid-electrolyte interphase and (in)active LixSi in silicon anode |
| title_fullStr | Interplay between solid-electrolyte interphase and (in)active LixSi in silicon anode |
| title_full_unstemmed | Interplay between solid-electrolyte interphase and (in)active LixSi in silicon anode |
| title_short | Interplay between solid-electrolyte interphase and (in)active LixSi in silicon anode |
| title_sort | interplay between solid electrolyte interphase and in active lixsi in silicon anode |
| topic | silicon anode solid electrolyte interphase cryo-TEM titration gas chromatography TGC |
| url | http://www.sciencedirect.com/science/article/pii/S2666386421003908 |
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