Micro-sized nano-porous Si/C anodes for lithium ion batteries

doi:10.1016/j.nanoen.2014.11.031

	Micro-sized nano-porous Si/C anodes for lithium ion batteries
	Tian, Huajun 1; Tan, Xiaojian 1; Xin, Fengxia 1; Wang, Chunsheng 2; Han, Weiqiang1,3
	2015-01
发表期刊	NANO ENERGY (IF:16.8[JCR-2023],16.3[5-Year])
ISSN	2211-2855
卷号	11 页码:490-499
发表状态	已发表
DOI	10.1016/j.nanoen.2014.11.031
摘要	The unique micro-sized (2-10 mu m) Si/C composites consisting of 20 nm carbon coated secondary Si were synthesized from the abundant and low cost Al-Si alloy ingot by acid etching, ball-milling and carbonization procedure. The nano-porous Si/C composites provide a capacity of 1182 mAh g(-1) at a current density of 50 mAg(-1), 952 mAh g(-1) at 200 mAg(-1), 815 mAh g(-1) at 500 mAg(-1), and maintain 86.8% of initial capacity after 300 cycles. Even at a much higher current density of 10 A/g, the porous Si/C anode can still provide capacities of >200 mAh g(-1). Its superior rate capability and cycling stability of micro-sized nano-porous Si/C anodes is because it takes advantage of both long cycle life of nano-Si and high volumetric/gravimetric capacity of micro-Si. The hierarchical porous micro-scale Si/C with the carbon coating can stabilize the SEI layer and the inside pore provides adequate space for Si expansion, relaxing the stress/strain. The hierarchical Si/C with exceptional electrochemical performance is prepared by a simple, low-cost and saleable synthesis method, making it very promising for a large-scale production of high-performance Si-based anode materials in high-energy lithium-ion batteries. (C) 2014 Elsevier Ltd. All rights reserved.
关键词	Lithium ion batteries Micro-sized Si/C Anode Hierarchical structure
收录类别	SCI ; EI
语种	英语
资助项目	Zhejiang Province Key Science and Technology Innovation Team[2013PT16]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:000351194300050
出版者	ELSEVIER SCIENCE BV
EI入藏号	20144900296973
EI主题词	Aluminum coatings ; Anodes ; Ball milling ; Carbon ; Carbonization ; Electric batteries ; Ions ; Lithium ; Lithium alloys ; Lithium compounds ; Porous silicon ; Secondary batteries ; Silicon ; Silicon alloys
EI分类号	Water Treatment Techniques:445.1 ; Ore Treatment:533.1 ; Alkali Metals:549.1 ; Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3 ; Electric Batteries and Fuel Cells:702 ; Chemistry:801 ; Chemical Plants and Equipment:802.1 ; Chemical Products Generally:804 ; Coating Materials:813.2
WOS关键词	NANOSCALE BUILDING-BLOCKS ; SILICON NANOWIRES ; C COMPOSITE ; PERFORMANCE ; NANOPARTICLES ; ELECTRODE ; NANOMATERIALS ; FABRICATION ; CAPACITY ; COATINGS
原始文献类型	Article
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/2340
专题	物质科学与技术学院_特聘教授组_韩伟强组
通讯作者	Wang, Chunsheng
作者单位	1.Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China 2.Univ Maryland, Dept Chem & Biomol Engn, College Pk, MD 20742 USA 3.Shanghai Tech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China
推荐引用方式 GB/T 7714	Tian, Huajun,Tan, Xiaojian,Xin, Fengxia,et al. Micro-sized nano-porous Si/C anodes for lithium ion batteries[J]. NANO ENERGY,2015,11:490-499.
APA	Tian, Huajun,Tan, Xiaojian,Xin, Fengxia,Wang, Chunsheng,&Han, Weiqiang.(2015).Micro-sized nano-porous Si/C anodes for lithium ion batteries.NANO ENERGY,11,490-499.
MLA	Tian, Huajun,et al."Micro-sized nano-porous Si/C anodes for lithium ion batteries".NANO ENERGY 11(2015):490-499.