Mussel-pearl-inspired design of Si/C composite for ultrastable lithium storage anodes

doi:10.1016/j.jallcom.2021.159717

	Mussel-pearl-inspired design of Si/C composite for ultrastable lithium storage anodes
	Du, Yu 1,3; Yang, Zongxian 1,3; Yang, Yijun 2; Yang, Yang 2; Jin, Huacheng 3; Hou, Guolin 3; Yuan, Fangli 3,4
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2021-08-15
卷号	872 页码:10
关键词	Lithium-ion batteries Si/C Graphite Thermal plasma Anode material
ISSN号	0925-8388
DOI	10.1016/j.jallcom.2021.159717
英文摘要	Silicon (Si) is the most promising anode material for new generation high-performance Lithium-ion batteries (LIBs), but the colossal volume expansion and poor conductivity limit its applications. In this work, we develop a mussel-pearl-inspired Si-embedded carbon/graphite composite (Si/C composite) via a two-step process of ball-milling and subsequent annealing to overcome these obstacles. With this method, Si nanoparticles (Si NPs) are successfully embedded into dual-carbon structure with efficient protection like pearls in mussel. The Si/C composite as anode material shows an ultrastable reversible capacity of 670 mAh g(-1) with a superior Initial Coulombic Efficiency (ICE) of 89.4% and an ultrahigh capacity retention of 85% over 850 cycles. Besides, the prepared materials show superior rate capacity at the current density of 5 degrees C. The superior electrochemical performances can be attributed to the excellent structure stability of mussel pearl structure during cycling, which provides effective protection for Si NPs and accommodate the volume expansion. These results prove that a rational structure design for Si/C composite can present excellent electrochemical performances through a simple and scalable strategy. (C) 2021 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China (NSFC)[21805282] ; National Natural Science Foundation of China (NSFC)[11535003] ; National Natural Science Foundation of China (NSFC)[21878312] ; "Key Program for International S&T Cooperation Projects of China" from the Ministry of Science and Technology of China[2019YFE0123000] ; Open Project of state Key Laboratory of Multi-phase Complex Systems[MPCS-2019-D-08]
WOS关键词	ION BATTERIES ; CARBON NANOFIBERS ; SILICON NANOPARTICLES ; SCALABLE SYNTHESIS ; CATHODE MATERIALS ; GRAPHENE SHEETS ; GRAPHITE ; PARTICLES
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000647669600002
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 ; Open Project of state Key Laboratory of Multi-phase Complex Systems
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/48692]
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.Univ Chinese Acad Sci UCAS, 19A Yuquan Rd, Beijing 100049, Peoples R China 2.Beijing Jiaotong Univ, Sch Sci, Dept Phys, Dept Chem,Minist Educ,Key Lab Luminescence & Opt, Beijing 100044, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Zhongguancun Beiertiao 1 Hao, Beijing 100190, Peoples R China 4.Univ Chinese Acad Sci UCAS, Ctr Mat Sci & Optoelect Engn, 19A Yuquan Rd, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Du, Yu,Yang, Zongxian,Yang, Yijun,et al. Mussel-pearl-inspired design of Si/C composite for ultrastable lithium storage anodes[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2021,872:10.
APA	Du, Yu.,Yang, Zongxian.,Yang, Yijun.,Yang, Yang.,Jin, Huacheng.,...&Yuan, Fangli.(2021).Mussel-pearl-inspired design of Si/C composite for ultrastable lithium storage anodes.JOURNAL OF ALLOYS AND COMPOUNDS,872,10.
MLA	Du, Yu,et al."Mussel-pearl-inspired design of Si/C composite for ultrastable lithium storage anodes".JOURNAL OF ALLOYS AND COMPOUNDS 872(2021):10.