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Si/FeSi2 Nanoparticles Prepared by Thermal Plasma with Stress-releasing Effect for Li-ion Storage

文献类型：期刊论文

作者Du, Yu2,3; Yang, Zongxian2,3; Bai, Liuyang5; Ding, Fei2; Jin, Huacheng2; Yang, Yijun1; Tran Dai Lam6; Hou, Guolin2; Yuan, Fangli2,4
刊名CHEMNANOMAT
出版日期2021-02-17
页码10
ISSN号2199-692X
关键词Silicon Li-ion batteries Stress-releasing Fe− Si alloy Thermal plasma
DOI10.1002/cnma.202100039
英文摘要Silicon (Si) anode materials have been extensively studied due to high capacity and abundant reserves. Herein, inspired by the Li+-inert components, we design a novel silicon/iron silicide nanoparticles (Si/FeSi2 NPs) prepared by thermal plasma to achieve stress-releasing effect. The Si/FeSi2 NPs is composed of Si and FeSi2 which exhibits superhigh Initial Coulomb Efficiency (ICE, 89%) with a capacity of 1121 mAh g(-1) after 850 cycles. The mechanism of the FeSi2 phase in the Si/FeSi2 NPs is studied by using finite element modelling creatively, demonstrating that the FeSi2 phase can buffer the volume expansion effectively by reducing the stress concentration on the particles surface and releasing internal stress of particles, thus maintaining structural integrity. After combining with carbon coating layer, the Si/FeSi2/carbon/graphite materials (Si/FeSi2/C/G) can achieve superior electrochemical performances. This work provides new insight into the development of the structural stable Si-alloy anodes towards LIBs applications.
资助项目National Natural Science Foundation of China (NSFC)[21878312] ; National Natural Science Foundation of China (NSFC)[11875284] ; National Natural Science Foundation of China (NSFC)[21805282] ; National Natural Science Foundation of China (NSFC)[11535003] ; "Key Program for International S&T Cooperation Projects of China" from the Ministry of Science and Technology of China[2019YFE0123000] ; Beijing Municipal Natural Science Foundation[2184126]
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science
语种英语
出版者WILEY-V C H VERLAG GMBH
WOS记录号WOS:000618725400001
资助机构National Natural Science Foundation of China (NSFC) ; "Key Program for International S&T Cooperation Projects of China" from the Ministry of Science and Technology of China ; Beijing Municipal Natural Science Foundation
源URL[http://ir.ipe.ac.cn/handle/122111/43485]  
专题中国科学院过程工程研究所
通讯作者Hou, Guolin; Yuan, Fangli
作者单位1.Beijing Jiaotong Univ, Sch Sci, Key Lab Luminescence & Opt Informat, Beijing 100044, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Zhongguancun Beiertiao 1 Hao, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci UCAS, 19 A Yuquan Rd, Beijing 100049, Peoples R China
4.Univ Chinese Acad Sci UCAS, Ctr Mat Sci & Optoelect Engn, 19 A Yuquan Rd, Beijing 100049, Peoples R China
5.Huanghuai Univ, Zhumadian 463000, Henan, Peoples R China
6.Vietnam Acad Sci & Technol VAST, Inst Trop Technol, 18 Hoang Quoc Viet, Hanoi 100000, Vietnam
推荐引用方式
GB/T 7714		 Du, Yu,Yang, Zongxian,Bai, Liuyang,et al. Si/FeSi2 Nanoparticles Prepared by Thermal Plasma with Stress-releasing Effect for Li-ion Storage[J]. CHEMNANOMAT,2021:10.
APA Du, Yu.,Yang, Zongxian.,Bai, Liuyang.,Ding, Fei.,Jin, Huacheng.,...&Yuan, Fangli.(2021).Si/FeSi2 Nanoparticles Prepared by Thermal Plasma with Stress-releasing Effect for Li-ion Storage.CHEMNANOMAT,10.
MLA Du, Yu,et al."Si/FeSi2 Nanoparticles Prepared by Thermal Plasma with Stress-releasing Effect for Li-ion Storage".CHEMNANOMAT (2021):10.

入库方式： OAI收割

来源：过程工程研究所

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