| 多元醇还原法合成锂离子电池正极材料LiFePO_4 |
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| 引用本文： | 曹雁冰,胡国荣,杜 柯,彭忠东,唐 春,张罗虎.多元醇还原法合成锂离子电池正极材料LiFePO_4[J].无机化学学报,2010,26(6):1061-1065. |
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| 作者姓名： | 曹雁冰 胡国荣 杜 柯 彭忠东 唐 春 张罗虎 |
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| 作者单位： | 中南大学冶金科学与工程学院,长沙,410083 |
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| 基金项目： | 国家科技支撑计划资助项目，湖南省科技计划资助项目 |
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| 摘 要： | 以三甘醇为还原剂,Li2CO3和三价铁源FePO4为原料,通过多元醇还原法在低于300℃下直接制备了结晶良好的纯相LiFePO4,无须后续热处理。0.1C首次放电比容量为140.5mAh·g-1。为了进一步改善纯相LiFePO4的电导率,以聚乙烯醇为碳源,在700℃下热处理进行了碳包覆改性,获得了LiFePO4/C复合正极材料。合成的LiFePO4/C在0.1C下放电容量为155mAh·g-1,5C倍率下放电比容量保持在125mAh·g-1,具有很好的倍率性能和循环稳定性。
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| 关 键 词： | LiFePO4 锂离子电池 多元醇还原法 碳包覆 |
Synthesis of LiFePO4 Cathode Materials by Polyol Reduction Processing |
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| CAO Yan-Bing,HU Guo-Rong,DU Ke,PENG Zhong-Dong,TANG Chun and ZHANG Luo-Hu.Synthesis of LiFePO4 Cathode Materials by Polyol Reduction Processing[J].Chinese Journal of Inorganic Chemistry,2010,26(6):1061-1065. |
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| Authors: | CAO Yan-Bing HU Guo-Rong DU Ke PENG Zhong-Dong TANG Chun and ZHANG Luo-Hu |
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| Affiliation: | School of Metallurgical Science and Engineering, Central South University, Changsha 410083,School of Metallurgical Science and Engineering, Central South University, Changsha 410083,School of Metallurgical Science and Engineering, Central South University, Changsha 410083,School of Metallurgical Science and Engineering, Central South University, Changsha 410083,School of Metallurgical Science and Engineering, Central South University, Changsha 410083 and School of Metallurgical Science and Engineering, Central South University, Changsha 410083 |
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| Abstract: | |
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| Keywords: | LiFePO4 Li-ion battery polyol reduction processing carbon coating |
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