Carbon nanotub es-enhance d lithium storage capacity of recovered silicon/carbon anodes produced from solar-grade silicon kerf scrap

doi:10.1016/j.electacta.2021.138269

	Carbon nanotub es-enhance d lithium storage capacity of recovered silicon/carbon anodes produced from solar-grade silicon kerf scrap
	Shi, Jian 1,2; Jiang, Xuesong 1,2; Ban, Boyuan 2; Li, Jingwei 2; Chen, Jian 2
刊名	ELECTROCHIMICA ACTA
	2021-06-10
卷号	381
关键词	Silicon/carbon composite anode Solar-grade silicon kerf scrap Carbon nanotubes Poly (methyl methacrylate) Lithium-ion battery
ISSN号	0013-4686
DOI	10.1016/j.electacta.2021.138269
通讯作者	Chen, Jian(jchen@ipp.ac.cn)
英文摘要	Recovered solar-grade silicon kerf scrap is touted as an ideal silicon source for Si-based anodes in advanced lithium-ion batteries (LIBs) whose development is always troubled by the volume expansion and low conductivity. Here, an effective approach for carbon nanotubes (CNTs) enhanced recovered silicon/carbon anodes encapsulated by polymethyl methacrylate (PMMA)-derived carbon coating (Si/CNTs@PMMA-C) is described. The Si/CNTs@PMMA-C anode presents an impressive Li ion storage capacity and long cycle lifespans, delivering a high initial discharge capacity of 3732.7 mAhg(-1) and initial coulombic efficiency of 78.2% at 200 mAg(-1) with a reversible capacity retention of 1024.8 mAhg(-1) after 200th cycle. Moreover, full-cells composed of Si/CNTs@PMMA-C anodes and commercial LiCoO2 cathodes display a good electrochemical performance and high energy density. These excellent electrochemical properties boil down to the synergistic effect of PMMA-derived carbon shell and high-purity recovered silicon; meanwhile, CNTs can further support volume expansion tolerance and electrical conductivity. This effective method can provide a broader practical application prospect for the silicon/carbon composite anodes based on low-cost recovered solar-grade silicon kerf scrap with enhanced electrochemical performance in advanced LIBs. (c) 2021 Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China[51874272] ; National Natural Science Foundation of China[51804294] ; Anhui Provincial Natural Science Foundation[1808085ME121] ; Sichuan Science and Technology Program[2019YFSY0029] ; Key Laboratory of Photovoltaic and Energy Conservation Materials, Chinese Academy of Sciences[PECL2019ZD005] ; Key Laboratory of Photovoltaic and Energy Conservation Materials, Chinese Academy of Sciences[PECL2018QN002] ; State Key Laboratory of Refractories and Metallurgy (Wuhan University of Science and Technology)[G201910] ; State Key Laboratory of Pollution Control and Resource Reuse Foundation[PCRRF18017] ; CPSF-CAS Joint Foundation for Excellent Postdoctoral Fellows[2016LH0017] ; CASHIPS Director's Funds[YYJJ201624] ; International Clean Energy Talent Program by China Scholarship Council
WOS关键词	ION BATTERY ANODES ; SCALABLE SYNTHESIS ; GRAPHENE SHEETS ; POROUS CARBON ; SI ANODE ; PERFORMANCE ; COMPOSITES ; NANOCOMPOSITES ; SHELL ; MICROSPHERES
WOS研究方向	Electrochemistry
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000641341500011
资助机构	National Natural Science Foundation of China ; Anhui Provincial Natural Science Foundation ; Sichuan Science and Technology Program ; Key Laboratory of Photovoltaic and Energy Conservation Materials, Chinese Academy of Sciences ; State Key Laboratory of Refractories and Metallurgy (Wuhan University of Science and Technology) ; State Key Laboratory of Pollution Control and Resource Reuse Foundation ; CPSF-CAS Joint Foundation for Excellent Postdoctoral Fellows ; CASHIPS Director's Funds ; International Clean Energy Talent Program by China Scholarship Council
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/122267]
专题	中国科学院合肥物质科学研究院
通讯作者	Chen, Jian
作者单位	1.Univ Sci & Technol China, Hefei 230026, Peoples R China 2.Chinese Acad Sci, HFIPS, Inst Solid State Phys, Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Shi, Jian,Jiang, Xuesong,Ban, Boyuan,et al. Carbon nanotub es-enhance d lithium storage capacity of recovered silicon/carbon anodes produced from solar-grade silicon kerf scrap[J]. ELECTROCHIMICA ACTA,2021,381.
APA	Shi, Jian,Jiang, Xuesong,Ban, Boyuan,Li, Jingwei,&Chen, Jian.(2021).Carbon nanotub es-enhance d lithium storage capacity of recovered silicon/carbon anodes produced from solar-grade silicon kerf scrap.ELECTROCHIMICA ACTA,381.
MLA	Shi, Jian,et al."Carbon nanotub es-enhance d lithium storage capacity of recovered silicon/carbon anodes produced from solar-grade silicon kerf scrap".ELECTROCHIMICA ACTA 381(2021).