| 催化剂前驱体Fe(NO3)3对LiFePO4/C倍率性能的影响 |
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| 引用本文： | 从长杰,张向军,卢世刚. 催化剂前驱体Fe(NO3)3对LiFePO4/C倍率性能的影响[J]. 电池, 2011, 41(5): 235-238 |
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| 作者姓名： | 从长杰 张向军 卢世刚 |
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| 作者单位： | 北京有色金属研究总院动力电池研究中心,北京,100088;北京有色金属研究总院动力电池研究中心,北京,100088;北京有色金属研究总院动力电池研究中心,北京,100088 |
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| 基金项目： | 国家高新技术研究(863)发展计划重大项目 |
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| 摘 要： | 以蔗糖和葡萄糖为碳源,Fe(N O3)3为催化剂前驱体,用碳热还原法合成LiFePO4/C复合材料,分析了产物的微观结构、形貌及电化学性能.蔗糖热解形成的碳包覆层石墨化程度高,可提高材料的倍率性能；Fe( NO3)3可优化包覆层的碳结构.在4.2～2.5V循环,制备的LiFePO4/C复合材料的5.0 C首次放电比容量...
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| 关 键 词： | 碳热还原 硝酸铁[Fe(NO3)3] 磷酸铁锂(LiFePO4) 碳包覆 |
Effects of catalyst precursor Fe(NO3)3 on rate performance of LiFePO4/C |
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| CONG Chang-jie,ZHANG Xiang-jun,LU Shi-gang. Effects of catalyst precursor Fe(NO3)3 on rate performance of LiFePO4/C[J]. Battery Bimonthly, 2011, 41(5): 235-238 |
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| Authors: | CONG Chang-jie ZHANG Xiang-jun LU Shi-gang |
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| Affiliation: | (Research & Development Center for Vehicle Battery and Energy Storage,Beijing General Research Institute of Nonferrous Metals,Beijing 100088,China) |
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| Abstract: | LiFePO4/C composite was synthesized via carbothermal reduction process.Sucrose and glucose were used as carbon source;Fe(NO3)3 was used as catalyst precursor.The microstructure,morphology and the electrochemical performance of the pro-duct were analyzed.The degree of graphitization of pyrolysis of carbon coating formed by sucrose was high and thus improved the high-rate performance of the material.Fe(NO3)3 could optimize the structure of the coating.When cycled at 4.2~2.5 V,the 5.0 C initial specific discharge capacity of prepared LiFePO4/C composite was 112.3 mAh/g,77% of the 1.0 C discharge. |
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| Keywords: | carbothermal reduction ferric nitrate[Fe(NO3)3] lithium iron phosphate(LiFePO4) carbon coating |
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