Mixed-carbon-coated LiMn0.4Fe0.6PO4 nanopowders with excellent high rate and low temperature performances for lithium-ion batteries

CORC > 上海硅酸盐研究所 > 中国科学院上海硅酸盐研究所 > 能量转换材料重点实验室 > 期刊论文

	Mixed-carbon-coated LiMn0.4Fe0.6PO4 nanopowders with excellent high rate and low temperature performances for lithium-ion batteries
	Zou, Bang-Kun 1,2; Wang, He-Yang 1,2; Qiang, Zi-Yue 1,2; Shao, Yu 1,2; Sun, Xin 1,2; Wen, Zhao-Yin 3; Chen, Chun-Hua 1,2
刊名	ELECTROCHIMICA ACTA
	2016-04-01
卷号	196 页码:377-385
关键词	lithium manganese iron phosphate ascorbic acid mixed carbon coating lithium ion batteries electrochemical performance
英文摘要	A novel solvothermal approach with ascorbic acid as both an antioxidant and a first-time carbon coating source is developed to synthesize LiMn0.4Fe0.6PO4 nano-particles with a uniform particle size distribution around 150 nm. A calcination step for the second-time carbon coating and further crystallization is adopted following the solvothermal step. The structures and electrochemical properties of the obtained samples are studied by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, Fourier transformation infrared, Infrared carbon-sulfur analyzer and galvanostatic cell cycling. Ascorbic acid plays a crucial role in the formation of uniform carbon layer and nano-particles. Compared with single-carbon-coated LiMn0.4Fe0.6PO4 without adding ascorbic acid, the mixed-carbon-coated LiMn0.4Fe0.6PO4 shows much better electrochemical performance. It can deliver specific capacities of 154.8 and 128.5 mAh g(-1) at 1C and 20C, respectively, at 25 degrees C. Even at 20 degrees C, its specific capacities are 106.6 and 68.8 mAh g(-1) at 0.2C and 5C, respectively. (C) 2016 Elsevier Ltd. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Electrochemistry
研究领域[WOS]	Electrochemistry
关键词[WOS]	ENHANCED ELECTROCHEMICAL PERFORMANCE ; CATHODE MATERIALS ; SOLVOTHERMAL SYNTHESIS ; LIFE0.6MN0.4PO4/C MICROSPHERES ; NANOSTRUCTURED MATERIALS ; NANOCOMPOSITE CATHODE ; ENERGY-CONVERSION ; STORAGE DEVICES ; RATE CAPABILITY ; LIMNPO4
收录类别	SCI
语种	英语
WOS记录号	WOS:000372877400042
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/23008]
专题	上海硅酸盐研究所_能量转换材料重点实验室_期刊论文
作者单位	1.Univ Sci & Technol China, CAS Key Lab Mat Energy Convers, Dept Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China 2.Univ Sci & Technol China, Collaborat Innovat Ctr Suzhou Nano Sci & Technol, Hefei 230026, Anhui, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China
推荐引用方式 GB/T 7714	Zou, Bang-Kun,Wang, He-Yang,Qiang, Zi-Yue,et al. Mixed-carbon-coated LiMn0.4Fe0.6PO4 nanopowders with excellent high rate and low temperature performances for lithium-ion batteries[J]. ELECTROCHIMICA ACTA,2016,196:377-385.
APA	Zou, Bang-Kun.,Wang, He-Yang.,Qiang, Zi-Yue.,Shao, Yu.,Sun, Xin.,...&Chen, Chun-Hua.(2016).Mixed-carbon-coated LiMn0.4Fe0.6PO4 nanopowders with excellent high rate and low temperature performances for lithium-ion batteries.ELECTROCHIMICA ACTA,196,377-385.
MLA	Zou, Bang-Kun,et al."Mixed-carbon-coated LiMn0.4Fe0.6PO4 nanopowders with excellent high rate and low temperature performances for lithium-ion batteries".ELECTROCHIMICA ACTA 196(2016):377-385.