文献类型：期刊文献

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

作者：Cheng, Zhongling[1];Jiang, Hao[2];Zhang, Xinlin[1];Cheng, Fangyi[3];Wu, Minghong[4];Zhang, Haijiao[1]

机构：[1]Shanghai Univ, Inst Nanochem & Nanobiol, Shanghai 200444, Peoples R China;[2]East China Univ Sci & Technol, Shanghai Engn Res Ctr Hierarch Nanomat, Frontiers Sci Ctr Materiobiol & Dynam Chem, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China;[3]Nankai Univ, Key Lab Adv Energy Mat Chem, Minist Educ, Tianjin 300071, Peoples R China;[4]Shanghai Univ, Sch Environm & Chem Engn, Shanghai 200444, Peoples R China

年份：2023

卷号：33

期号：26

外文期刊名：ADVANCED FUNCTIONAL MATERIALS

收录：;EI(收录号：20231413851820);WOS:【SCI-EXPANDED(收录号:WOS:000956769200001)】；

基金：The work was financially supported by the Shuguang Program from Shanghai Education Development Foundation and the Shanghai Municipal Education Commission (18SG35), the Basic Research Program of Shanghai Municipal Government (21JC1406002), and the Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University.

语种：英文

外文关键词：full cell; lithium-ion batteries; porous structure; Si-based anodes; synthetic strategies

摘要：As one of the most electrochemical energy storage devices, lithium-ion batteries (LIBs) remain the workhorse of the energy market due to their unparalleled advantages. Remarkably, Si-based materials play a pivotal role in LIBs anodes owing to ultrahigh theoretical capacity of Si and rich natural resources. However, bulk silicon materials are difficult to meet the current commercial demand because of their low conductivity, sluggish reaction kinetics, and huge volume expansion. The construction of porous structures has been acknowledged as an effective way to solve the above issues. Herein, the delicate design of porous Si-based anode materials including synthetic strategies, the engineering of surface morphology and micro/nano-structure, and the regulation of different compositions, as well as their applications in LIBs is systematically summarized. Particularly, the fine engineering of different pore parameters for Si-based materials is on focus. Importantly, the relationship between thick electrodes and tortuosity/porosity, and the structural effect between pores and battery performance are also discussed in depth. Finally, the applications of porous Si-based anodes in full-cells and their commercial achievements are briefly described. This review is expected to provide a basic understanding and deep insight into developing porous Si-based anodes for high-energy lithium storage.