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| Research progress on artificial interfacial layer on silicon-based anodes for lithium-ion battery |
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Received:October 30, 2024
Revised:November 18, 2024
Accepted:November 18, 2024
Published Online:January 21, 2025
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| DOI： |
| KeyWord:lithium-ion battery;silicon-based anode materials;electrode electrolyte interface;artificial solid electrolyte interphase;mechanical stability |
| Author | Institution |
| Yang Yaozong |
University of Science and Technology Beijing |
| Sun Guoping |
Jiangsu Easpring Material Technology Co. Ltd. |
| Chen Xin |
Beijing Easpring Material Technology Co. Ltd. |
| Liu Yafei |
Beijing Easpring Material Technology Co. Ltd. |
| Zhao Hailei |
University of Science and Technology Beijing |
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| Abstract: |
| Silicon (Si)-based materials are promising anodes for high energy density lithium-ion batteries due to their high theoretical specific capacity and moderate operating voltage. However, the large volume expansion/shrinkage of Si anode during lithiation/delithiation causes the fragmentation of active particles and the rupture of solid electrolyte interphase (SEI), which severely limits the practical application of Si-based anode materials. The development of artificial solid electrolyte interphase (A-SEI) offers the possibility of solving the interfacial stability problem of Si-based anodes. Compared to the routine SEI generated by conventional electrolyte decomposition, the A-SEI possesses highly tunable nature in both chemistry and structure. This paper reviews the current status of A-SEI for Si-based anodes, first introducing the general design principles and preparation methods of A-SEI, then categorizing and summarizing recent studies on A-SEI used to improve the interfacial stability of Si-based anodes. The mechanisms of the A-S |
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