Research Progress on Coating Structure of Silicon Anode Materials for Lithium-ion Battery.
Research Progress on Coating Structure of Silicon Anode Materials for Lithium-ion Battery.
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锂离子电池硅负极材料涂层结构的研究进展
DOI：
10.1002/cssc.202101837
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发表时间：
2021-09
期刊：
影响因子：
8.4
通讯作者：
Ke Xu;X. Liu;Keke Guan;Ying-ying Yu;W. Lei;Shaowei Zhang;Q. Jia;Haijun Zhang
中科院分区：
文献类型：
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作者：
Ke Xu;X. Liu;Keke Guan;Ying-ying Yu;W. Lei;Shaowei Zhang;Q. Jia;Haijun Zhang
硅因其极高的理论容量和丰度而受到广泛的研究，被认为是下一代锂离子电池最有前途的负极材料之一。然而，硅在循环过程中会发生巨大的体积变化，导致电极结构的破坏和不可逆的容量损失，极大地阻碍了硅材料在商业应用中的推广。近年来，人们提出了许多策略来解决硅的这些缺点，本文重点介绍了硅材料的不同涂层材料，如碳基材料、金属、氧化物、导电聚合物等。综述了不同类型材料在硅基材料封装结构改性中的作用，验证了保护层策略的可行性。最后，总结了下一代锂离子电池硅基材料涂层结构设计的未来研究方向。
Silicon which has been widely studied by virtue of its extremely high theoretical capacity and abundance, is recognized as one of the most promising anode materials for the next generation of lithium-ion batteries. However, silicon undergoes tremendous volume change during cycling, which leads to the destruction of the electrode structure, and irreversible capacity loss, the promotion of silicon materials in commercial applications is greatly hampered. In recent years, many strategies have been proposed to address these shortcomings of silicon, this paper focuses on different coatings materials, e.g., carbon-based materials, metals, oxides, conducting polymers, etc. for silicon materials. The role of different types of materials in the modification of silicon-based material encapsulation structure was reviewed to confirm the feasibility of the protective layer strategy. Finally, the future research direction of the silicon-based material coating structure design for the next-generation lithium-ion battery is summarized.