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Synthesis of LiFePO4/C composite as a cathode material for lithium-ion battery by a novel two-step method
Zhang, Le1; Xiang, Hongfa1; Zhu, Xuefeng2; Yang, Weishen2; Wang, Haihui1
刊名JOURNAL OF MATERIALS SCIENCE
2012-04-01
DOI10.1007/s10853-011-6139-7
47期:7页:3076-3081
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Technology
类目[WOS]Materials Science, Multidisciplinary
研究领域[WOS]Materials Science
关键词[WOS]SOLID-STATE SYNTHESIS ; NANO-SIZED LIFEPO4 ; ELECTROCHEMICAL PERFORMANCE ; GEL SYNTHESIS ; CARBON ; ELECTRODE ; ROUTE ; CHALLENGES ; PHOSPHATE
英文摘要In this study, LiFePO4/C is synthesized via a novel two-step method. The first step is the synthesis of nano-sized intermediate FePO4 by a modified sol-gel method. A fast and full combustion procedure is involved to remove carbon and control the size of the intermediate particles. The second step is to prepare LiFePO4/C by combining solid-state reaction with controllable carbon coating. This two-step method is facile to prepare nano-sized LiFePO4 and easy to optimize the carbon content for surface coating. X-ray diffraction shows that the LiFePO4/C composite possesses good crystallinity. Spherical morphology with a diameter of 30-150 nm is observed by scanning electron microscope and transmission electron microscope. Electrochemical measurements indicate that the LiFePO4/C composite exhibits discharge capacities of 162, 144, 126, and 106 mAh g(-1) at 0.1, 1, 2, and 5C, respectively. No capacity fading is observed in 50 cycles.
语种英语
WOS记录号WOS:000299331500008
引用统计
被引频次:24[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/142967
专题中国科学院大连化学物理研究所
作者单位1.S China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Guangdong, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
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GB/T 7714
Zhang, Le,Xiang, Hongfa,Zhu, Xuefeng,et al. Synthesis of LiFePO4/C composite as a cathode material for lithium-ion battery by a novel two-step method[J]. JOURNAL OF MATERIALS SCIENCE,2012,47(7):3076-3081.
APA Zhang, Le,Xiang, Hongfa,Zhu, Xuefeng,Yang, Weishen,&Wang, Haihui.(2012).Synthesis of LiFePO4/C composite as a cathode material for lithium-ion battery by a novel two-step method.JOURNAL OF MATERIALS SCIENCE,47(7),3076-3081.
MLA Zhang, Le,et al."Synthesis of LiFePO4/C composite as a cathode material for lithium-ion battery by a novel two-step method".JOURNAL OF MATERIALS SCIENCE 47.7(2012):3076-3081.
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