| 溶胶凝胶法制LiFePO4作为锂电池正极材料的研究 |
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| 引用本文： | 杨华,司靖宇. 溶胶凝胶法制LiFePO4作为锂电池正极材料的研究[J]. 合肥学院学报(自然科学版), 2006, 16(1): 40-44 |
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| 作者姓名： | 杨华 司靖宇 |
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| 作者单位： | 安徽农业大学,应用化学系,合肥,230036;合肥学院,化学与材料工程系,合肥,230022 |
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| 摘 要： | 采用固相法和溶胶凝胶法(sol-gel)成功地制备出了L iFePO4.并利用X射线衍射、扫描电镜以及电化学测试等手段,系统地研究了合成条件和方法对材料的结构和电化学性能的影响.研究表明,使用sol-gel方法和固相法,制备出单一相的L iFePO4,其比容量分别为130mAh/g和80mAh/g.采用sol-gel方法制备的L iFePO4作为电池正极材料具有高的比容量和优良的电化学性能.
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| 关 键 词： | sol-gel 固相法 LiFePO4 正极材料 |
| 文章编号： | 1673-162X(2006)01-0040-05 |
| 修稿时间： | 2005-07-11 |
The Synthesis of LiFePO4 as Positive Cathode Materials for Lithium-ion Batteries by Sol-gel |
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| YANG Hua,SI Jing-yu. The Synthesis of LiFePO4 as Positive Cathode Materials for Lithium-ion Batteries by Sol-gel[J]. Journal of Hefei University(Natural Sciences Edition), 2006, 16(1): 40-44 |
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| Authors: | YANG Hua SI Jing-yu |
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| Abstract: | Olivine structure LiFePO_4 has successfully been fabricated using Sol-gel method.Influence of synthesizing conditions and methods on structure,morphology and electrochemical performance of the final materials are investigatee by means of XRD,SEM and electrochemical techniques.Single-phase LiFePO_4 are obtained by solid-state reaction and Sol-gel method at 600 C.Samples based on this condition exhibits reversible discharge capacity of 80mAh/g and 130mAh/g.The synthesis of pure LiFePO_4 by Sol-gel method has high specific capacity and most optimized electrochemical properties. |
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| Keywords: | Sol-gel solid-state method LiFePO_4 positive cathode materials |
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