| PAM软模板法合成LiFePO4/C纳米共生物 |
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| 引用本文： | 杨书廷,赵娜红,尹艳红,董红玉,岳红云,杨金鑫.PAM软模板法合成LiFePO4/C纳米共生物[J].电池,2005,35(4). |
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| 作者姓名： | 杨书廷 赵娜红 尹艳红 董红玉 岳红云 杨金鑫 |
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| 作者单位： | 河南师范大学化学与环境科学学院,河南,新乡,453002;河南师范大学化学与环境科学学院,河南,新乡,453002;河南师范大学化学与环境科学学院,河南,新乡,453002;河南师范大学化学与环境科学学院,河南,新乡,453002;河南师范大学化学与环境科学学院,河南,新乡,453002;河南师范大学化学与环境科学学院,河南,新乡,453002 |
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| 摘 要： | 采用聚丙烯酰胺(PAM)软模板法合成了LiFePO4/C正极材料.在0.1 mA/cm2电流密度下,PAM软模板法合成的LiFePO4/C材料的放电比容量可达120mAh/g,且可逆性增强.材料的振实密度达到1.19g/cm3.透射电镜和原子力显微镜图像研究表明:合成的活性材料和所掺杂的碳具有纳米共生结构,且颗粒具有较大的电化学活性比表面,颗粒间无团聚现象.采用X射线衍射实验,对PAM软模板剂在合成过程中的改性作用进行了研究.
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| 关 键 词： | 锂离子电池 正极材料 LiFePO4 软模板剂 |
Synthesis of LiFePO4/C nano-structure intergrowth by PAM soft templating method |
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| YANG Shu-Ting,ZHAO Na-hong,YIN Yan-hong,DONG Hong-yu,YUE Hong-yun,YANG Jin-xin.Synthesis of LiFePO4/C nano-structure intergrowth by PAM soft templating method[J].Battery Bimonthly,2005,35(4). |
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| Authors: | YANG Shu-Ting ZHAO Na-hong YIN Yan-hong DONG Hong-yu YUE Hong-yun YANG Jin-xin |
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| Abstract: | LiFePO_4/C cathode material was prepared by polyacrylamide (PAM) soft templating method. Discharge specific (capacity) of the LiFePO_4/C material prepared by PAM soft templating method reached 120 mAh/g at 0.1 mA/cm~2 and its reversibility was increased.The tap density of the material was 1.19 g/cm~3. TEM and TP-AFM pictures showed that nano-structured intergrowth resided in the composite material and doped carbon with more electrochemical active specific surface and few aggregates. The composite effect of PAM soft template during preparing was studied by XRD test. |
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| Keywords: | LiFePO4 |
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