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题名: Superior electrode performance of LiFePO4/C composite prepared by an in situ polymerization restriction method
作者: Chen, Jian1;  Zou, Yong-Cun1;  Zhang, Feng2;  Zhang, Yuan-Chun1;  Guo, Fei-Fan1;  Li, Guo-Dong1
关键词: Electrode materials ;  Microstructure ;  Coating materials ;  Precipitation
刊名: JOURNAL OF ALLOYS AND COMPOUNDS
发表日期: 2013-06-25
DOI: 10.1016/j.jallcom.2013.02.131
卷: 563, 页:264-268
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Materials Science, Multidisciplinary ;  Metallurgy & Metallurgical Engineering
研究领域[WOS]: Chemistry ;  Materials Science ;  Metallurgy & Metallurgical Engineering
英文摘要: The LiFePO4/C composite is prepared by heating the mixture of resorcinol-formaldehyde gel and FePO4, synthesized by an in situ polymerization restriction method, and lithium acetate dihydrate in the atmosphere of nitrogen. The physical and electrochemical properties of the LiFePO4/C composite are investigated by X-ray diffraction, Raman spectroscopy, thermogravimetric analysis, scanning electron microscopy, transmission electron microscopy and electrochemical measurements. The discharge capacity of LiFePO4 is as high as 155.6 mA h g(-1) in the first cycle at 0.5C, and it could remain 144.0 mA h g(-1) after 50 cycles. Even at the high rates of 10C, 20C and 50C, the initial discharge capacities of the electrodes exhibit 115.6 mA h g(-1), 84.5 mA h g(-1) and 67.8 mA h g(-1), and the electrodes deliver capacity retention of 89.5%, 90.9% and 85.7% after 1000 cycles, respectively. The outstanding electrochemical performance could be attributed to the small particle size and good electronic conductivity of the composite. (c) 2013 Elsevier B.V. All rights reserved.
关键词[WOS]: LITHIUM-ION BATTERIES ;  HIGH-RATE CAPABILITY ;  ELECTROCHEMICAL PERFORMANCE ;  CATHODE MATERIALS ;  HYDROTHERMAL SYNTHESIS ;  CARBON ;  NANOCOMPOSITE ;  NANOPARTICLES ;  MICROSPHERES ;  ENHANCEMENT
语种: 英语
WOS记录号: WOS:000317269300047
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/137660
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Jilin Univ, State Key Lab Inorgan Synth & Preparat Chem, Coll Chem, Changchun 130012, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Lab Adv Rechargeable Batteries, Dalian 116023, Peoples R China

Recommended Citation:
Chen, Jian,Zou, Yong-Cun,Zhang, Feng,et al. Superior electrode performance of LiFePO4/C composite prepared by an in situ polymerization restriction method[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2013,563:264-268.
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