CAS OpenIR
Si/FeSi2 Nanoparticles Prepared by Thermal Plasma with Stress-releasing Effect for Li-ion Storage
Du, Yu1,2; Yang, Zongxian1,2; Bai, Liuyang4; Ding, Fei1; Jin, Huacheng1; Yang, Yijun5; Tran Dai Lam6; Hou, Guolin1; Yuan, Fangli1,3
2021-02-17
Source PublicationCHEMNANOMAT
ISSN2199-692X
Pages10
AbstractSilicon (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.
KeywordSilicon Li-ion batteries Stress-releasing Fe− Si alloy Thermal plasma
DOI10.1002/cnma.202100039
Language英语
Funding ProjectNational 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 Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS SubjectChemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
Funding OrganizationNational 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
WOS IDWOS:000618725400001
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/43486
Collection中国科学院过程工程研究所
Corresponding AuthorHou, Guolin; Yuan, Fangli
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Zhongguancun Beiertiao 1 Hao, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci UCAS, 19 A Yuquan Rd, Beijing 100049, Peoples R China
3.Univ Chinese Acad Sci UCAS, Ctr Mat Sci & Optoelect Engn, 19 A Yuquan Rd, Beijing 100049, Peoples R China
4.Huanghuai Univ, Zhumadian 463000, Henan, Peoples R China
5.Beijing Jiaotong Univ, Sch Sci, Key Lab Luminescence & Opt Informat, Beijing 100044, Peoples R China
6.Vietnam Acad Sci & Technol VAST, Inst Trop Technol, 18 Hoang Quoc Viet, Hanoi 100000, Vietnam
Recommended Citation
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.
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