Graphene activated 3D-hierarchical flower-like Li2FeSiO4 for high-performance lithium-ion batteries

CORC > 武汉物理与数学研究所 > 中国科学院武汉物理与数学研究所 > 磁共振应用研究部

	Graphene activated 3D-hierarchical flower-like Li2FeSiO4 for high-performance lithium-ion batteries
	Yang, Jinlong 1; Kang, Xiaochun 1; He, Daping 1; Zheng, Anmin 2; Pan, Mu 1; Mu, Shichun 1
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2015
卷号	3 期号:32 页码:16567-16573
英文摘要	Development of a cathode material with safety, low cost, high energy and power densities, long life and excellent abuse tolerance for Li-ion batteries is critical for hybrid electric vehicles (HEVs) and electric vehicles (EVs). Here, we developed graphene activated 3D-hierarchical flower-like Li2FeSiO4 with secondary nanopetals (G@3D-HFLFS), which exhibited a discharge capacity of 327.2 mA h g(-1) (specific energy of 879 W h kg(-1)) approaching the full theoretical capacity with large-current and long-life performance. The electrochemical reaction mechanism of G@3D-HFLFS was investigated by Mossbauer spectroscopy and parallel model X-band ESR. The high performance can be attributed to the secondary petal-like structures having an ultra-rapid Li-ion diffusion along the minimum length, the graphene coating layers facilitating double transport of electrons and Li-ions, and the special hierarchical structure with an optimal petal thickness possessing excellent structural stability. These results clearly demonstrate that our novel material is a promising cathode for commercial applications that require high energy and power densities, long operating life and excellent abuse tolerance.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
研究领域[WOS]	Chemistry ; Energy & Fuels ; Materials Science
关键词[WOS]	CATHODE MATERIALS ; HIGH-CAPACITY ; ELECTROCHEMICAL PROPERTIES ; NANOSTRUCTURED MATERIALS ; ULTRATHIN NANOSHEETS ; ENERGY-CONVERSION ; STORAGE DEVICES ; ELECTRODE ; EXTRACTION/INSERTION ; COMPOSITES
收录类别	SCI
语种	英语
WOS记录号	WOS:000359184200025
公开日期	2015-09-29
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/7854]
专题	武汉物理与数学研究所_磁共振应用研究部
作者单位	1.Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China 2.Chinese Acad Sci, Wuhan Inst Phys & Math, Natl Ctr Magnet Resonance Wuhan, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430070, Peoples R China
推荐引用方式 GB/T 7714	Yang, Jinlong,Kang, Xiaochun,He, Daping,et al. Graphene activated 3D-hierarchical flower-like Li2FeSiO4 for high-performance lithium-ion batteries[J]. JOURNAL OF MATERIALS CHEMISTRY A,2015,3(32):16567-16573.
APA	Yang, Jinlong,Kang, Xiaochun,He, Daping,Zheng, Anmin,Pan, Mu,&Mu, Shichun.(2015).Graphene activated 3D-hierarchical flower-like Li2FeSiO4 for high-performance lithium-ion batteries.JOURNAL OF MATERIALS CHEMISTRY A,3(32),16567-16573.
MLA	Yang, Jinlong,et al."Graphene activated 3D-hierarchical flower-like Li2FeSiO4 for high-performance lithium-ion batteries".JOURNAL OF MATERIALS CHEMISTRY A 3.32(2015):16567-16573.