Fundamental Understanding and Facing Challenges in Structural Design of Porous Si-Based Anodes for Lithium-Ion Batteries

Zhongling Cheng; Hao Jiang; Xinlin ZhangFangyi ChengMinghong WuHaijiao Zhang

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Fundamental Understanding and Facing Challenges in Structural Design of Porous Si-Based Anodes for Lithium-Ion Batteries

机译：Fundamental Understanding and Facing Challenges in Structural Design of Porous Si-Based Anodes for Lithium-Ion Batteries

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As one of the most electrochemical energy storage devices, lithium-ionbatteries (LIBs) remain the workhorse of the energy market due to theirunparalleled advantages. Remarkably, Si-based materials play a pivotal rolein LIBs anodes owing to ultrahigh theoretical capacity of Si and rich naturalresources. However, bulk silicon materials are difficult to meet the currentcommercial demand because of their low conductivity, sluggish reactionkinetics, and huge volume expansion. The construction of porous structureshas been acknowledged as an effective way to solve the above issues. Herein,the delicate design of porous Si-based anode materials including syntheticstrategies, the engineering of surface morphology and micro/nano-structure,and the regulation of different compositions, as well as their applicationsin LIBs is systematically summarized. Particularly, the fine engineering ofdifferent pore parameters for Si-based materials is on focus. Importantly,the relationship between thick electrodes and tortuosity/porosity, and thestructural effect between pores and battery performance are also discussedin depth. Finally, the applications of porous Si-based anodes in full-cells andtheir commercial achievements are briefly described. This review is expectedto provide a basic understanding and deep insight into developing porousSi-based anodes for high-energy lithium storage.

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来源
《Advanced functional materials》 |2023年第26期|2301109.1-2301109.33|共33页
作者
Zhongling Cheng; Hao Jiang; Xinlin ZhangFangyi ChengMinghong WuHaijiao Zhang;
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作者单位

Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education)Nankai UniversityTianjin 300071, China;

School of Environmental and Chemical EngineeringShanghai UniversityShanghai 200444, China;

Institute of Nanochemistry and NanobiologyShanghai UniversityShanghai 200444, ChinaShanghai Engineering Research Center of Hierarchical NanomaterialsFrontiers Science Center for Materiobiology and Dynamic ChemistrySchool of Materials Science and EngineeringEast China University of Science and TechnologyShanghai 200237, China;

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正文语种英语
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full cell; lithium-ion batteries; porous structures; Si-based anodes; synthetic strategies;

Fundamental Understanding and Facing Challenges in Structural Design of Porous Si-Based Anodes for Lithium-Ion Batteries

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