| Synthesis of LiFePO4 in situ vapor-grown carbon fiber （VGCF） composite cathode material via microwave pyrolysis chemical vapor deposition |
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| 引用本文： | DENG Fei,ZENG XieRong,ZOU JiZhao,HUANG JianFeng,SHENG HongChao,XIONG XinBo,QIAN HaiXia,LI XiaoHua. Synthesis of LiFePO4 in situ vapor-grown carbon fiber （VGCF） composite cathode material via microwave pyrolysis chemical vapor deposition[J]. 科学通报(英文版), 2011, 56(17): 1832-1835. DOI: 10.1007/s11434-010-4273-2 |
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| 作者姓名： | DENG Fei ZENG XieRong ZOU JiZhao HUANG JianFeng SHENG HongChao XIONG XinBo QIAN HaiXia LI XiaoHua |
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| 作者单位： | [1]School of Materials Science and Engineering, Northwestern Polytechnical University, Xi＇ an 710072, China; [2]College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China; [3]Shenzhen Key Laboratory of Special Functional Materials, Shenzhen 518060, China |
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| 基金项目： | This work was supported by the National Natural Science Foundation of China （50672059）. |
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| 摘 要： | One of the most important factors that limits the use of LiFePO 4 as cathode material for lithium ion batteries is its low electronic conductivity.In order to solve this problem,LiFePO 4 in situ vapor-grown carbon fiber (VGCF) composite cathode material has been prepared in a single step through microwave pyrolysis chemical vapor deposition.The phase,microstructure,and electrochemical performance of the composites were investigated.Compared with the cathodes without in situ VGCF,the initial discharge capacity of the composite electrode increases from 109 to 144 mA h g-1 at a 0.5-C rate,and the total electric resistance decreases from 538 to 66.The possible reasons for these effects are proposed.
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| 关 键 词： | vapor-grown carbon fiber LiFePO 4 microwave chemical vapor deposition lithium ion batteries |
| 收稿时间： | 2008-04-02 |
Synthesis of LiFePO4in situ vapor-grown carbon fiber (VGCF) composite cathode material via microwave pyrolysis chemical vapor deposition |
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| Fei Deng,XieRong Zeng,JiZhao Zou,JianFeng Huang,HongChao Sheng,XinBo Xiong,HaiXia Qian,XiaoHua Li. Synthesis of LiFePO4in situ vapor-grown carbon fiber (VGCF) composite cathode material via microwave pyrolysis chemical vapor deposition[J]. Chinese science bulletin, 2011, 56(17): 1832-1835. DOI: 10.1007/s11434-010-4273-2 |
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| Authors: | Fei Deng XieRong Zeng JiZhao Zou JianFeng Huang HongChao Sheng XinBo Xiong HaiXia Qian XiaoHua Li |
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| Affiliation: | (1) Department of Materials Science and Engineering, I-Shou University, No.1, Sec.1, Syuecheng Rd., Dashu Township, Kaohsiung, 840, Taiwan, ROC;(2) Department of Electrophysics, National Chiao Tung University, Hsinchu, 300, Taiwan, ROC;(3) Department of Chemical and Materials Engineering, National Chin-Yi University of Technology, Taichung, 411, Taiwan, ROC;(4) Graduate Program in Electro-Optical Engineering, Tatung Universiy, Taipei, 10452, Taiwan, ROC |
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| Abstract: | One of the most important factors that limits the use of LiFePO4 as cathode material for lithium ion batteries is its low electronic conductivity. In order to solve this problem, LiFePO4 in situ vapor-grown carbon fiber (VGCF) composite cathode material has been prepared in a single step through microwave pyrolysis chemical vapor deposition. The phase, microstructure, and electrochemical performance of the composites were investigated. Compared with the cathodes without in situ VGCF, the initial discharge capacity of the composite electrode increases from 109 to 144 mA h g−1 at a 0.5-C rate, and the total electric resistance decreases from 538 to 66 Ω. The possible reasons for these effects are proposed. |
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| Keywords: | vapor-grown carbon fiber LiFePO4 microwave chemical vapor deposition lithium ion batteries |
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