Hierarchically porous carbon architectures embedded with hollow nanocapsules for high-performance lithium storage

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	Hierarchically porous carbon architectures embedded with hollow nanocapsules for high-performance lithium storage
	C.; Chen Yu, M.; Li, X. J.; Zhao, C. T.; He, L. L.; Qiu, J. S.
	2015
发表期刊	Journal of Materials Chemistry A
ISSN	2050-7488
卷号	3 期号:9 页码:5054-5059
摘要	One of the great challenges in the development of lithium ion batteries (LIBs) is to achieve the design and synthesis of electrode materials with a large capacity and a high rate capability. Here, we report a novel hierarchical pore architecture material composed of a micro-sized porous carbon sphere matrix embedded with hollow nanocapsules (HNs-HPCS) as a promising anode material for large capacity and ultra-high rate capability in LIBs. Such a hierarchical porous structure delivers a very high capacity of 805 mA h g(-1) at a current density of 0.1 A g(-1), and the capacity of ca. 210 mA h g(-1) can be kept at 20 A g(-1) (ca. 38 s to fully charge). We believe that the hollow nanocapsules embedded within the carbon interior would store large amounts of Li ions, while hierarchical pores are favorable for the fast transportation of Li ions in the electrolyte to a great degree, and thus mean that the micro-sized material has great potential for the fabrication of high-performance LIBs.
部门归属	[yu, chang ; chen, meng ; zhao, changtai ; qiu, jieshan] dalian univ technol, liaoning key lab energy mat & chem engn, state key lab fine chem, sch chem engn,carbon res lab, dalian 116024, peoples r china. [chen, meng] shanxi transportat res inst, taiyuan 030006, peoples r china. [li, xiaoju ; he, lianlong] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. ; qiu, js (reprint author), dalian univ technol, liaoning key lab energy mat & chem engn, state key lab fine chem, sch chem engn,carbon res lab, dalian 116024, peoples r china. ; jqiu@dlut.edu.cn
关键词	Li-ion Batteries High-rate Capability High-capacity Anode Material Mesoporous Carbon Physicochemical Properties Catalytic Graphitization Starch Spheres Supercapacitors
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文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/74008
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	C.,Chen Yu, M.,Li, X. J.,et al. Hierarchically porous carbon architectures embedded with hollow nanocapsules for high-performance lithium storage[J]. Journal of Materials Chemistry A,2015,3(9):5054-5059.
APA	C.,Chen Yu, M.,Li, X. J.,Zhao, C. T.,He, L. L.,&Qiu, J. S..(2015).Hierarchically porous carbon architectures embedded with hollow nanocapsules for high-performance lithium storage.Journal of Materials Chemistry A,3(9),5054-5059.
MLA	C.,et al."Hierarchically porous carbon architectures embedded with hollow nanocapsules for high-performance lithium storage".Journal of Materials Chemistry A 3.9(2015):5054-5059.