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题名: Synthesis of LiFePO4/C composite as a cathode material for lithium-ion battery by a novel two-step method
作者: Zhang, Le1;  Xiang, Hongfa1;  Zhu, Xuefeng2;  Yang, Weishen2;  Wang, Haihui1
刊名: JOURNAL OF MATERIALS SCIENCE
发表日期: 2012-04-01
DOI: 10.1007/s10853-011-6139-7
卷: 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
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.
关键词[WOS]: SOLID-STATE SYNTHESIS ;  NANO-SIZED LIFEPO4 ;  ELECTROCHEMICAL PERFORMANCE ;  GEL SYNTHESIS ;  CARBON ;  ELECTRODE ;  ROUTE ;  CHALLENGES ;  PHOSPHATE
语种: 英语
WOS记录号: WOS:000299331500008
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142967
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.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

Recommended Citation:
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.
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