| 不同溶剂中电化学合成LiFePO4/C及性能 |
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| 引用本文： | 邓凌峰,魏银烨.不同溶剂中电化学合成LiFePO4/C及性能[J].电池工业,2011,16(5):259-262. |
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| 作者姓名： | 邓凌峰 魏银烨 |
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| 作者单位： | 中南林业科技大学材料科学与工程学院,湖南长沙,410004 |
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| 摘 要： | 以无水乙醇、纯水为溶剂,蔗糖为碳源,采用电化学法合成LiFePO4/C锂离子电池复合正极材料.通过X射线衍射(XRD)、扫描电镜(SEM)及充放电性能测试等方法对其晶体结构、微观形貌和电化学性能进行分析研究.结果表明:LiFePO4/C具有单一的橄榄石型晶体结构.其中在无水乙醇溶剂中合成的LiFePO4/C复合正极材料...
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| 关 键 词： | 不同溶剂 电化学合成 磷酸铁锂 锂离子电池 正极材料 |
Electrochemical synthesis of LiFePO4/C using different solvent and its performance |
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| DENG Ling-feng,WEI Yin-ye.Electrochemical synthesis of LiFePO4/C using different solvent and its performance[J].Chinese Battery Industry,2011,16(5):259-262. |
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| Authors: | DENG Ling-feng WEI Yin-ye |
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| Affiliation: | (College of Material Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan 410004, China) |
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| Abstract: | The LiFePO4/C composite cathode materials was synthesized by electrochemical method using ethanol,water as solvent and sucrose as carbon source. The crystalline structure, morphology and electrochemical performance were investigated by X-ray diffraction, scanning electromicroscope, and charge- discharge measurements. The results showed that LiFePO4/C was simple pure phase olivine-type crystal structure. It is noted that the LiFePO4/C composite cathode materials have small, uniform particle sizes, and thus excellent electrochemical performance with the first discharge specific capacity of 142.3 mAh/g at 0.2 C. After 30 times cycling, the discharge specific capacity wasl41.2 mA h/g. |
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| Keywords: | different solvent electrochemical synthesis lithium iron phosphate Li-ion battery cathode materials |
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