| 控制结晶法制备球形磷酸铁的团聚尺寸模型 |
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| 引用本文： | 张震,蒲薇华,任建国,武玉玲,何向明.控制结晶法制备球形磷酸铁的团聚尺寸模型[J].化学工程,2011,39(8):20-24. |
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| 作者姓名： | 张震 蒲薇华 任建国 武玉玲 何向明 |
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| 作者单位： | 清华大学核能与新能源技术研究院,北京,100084 |
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| 基金项目： | 国家“973”资助项目(2007CB209705); 国家“863”资助项目(2009AA035201); 清华大学自主科研资助项目(2009THZ08064) |
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| 摘 要： | 磷酸铁是制备锂离子电池正极材料磷酸铁锂的主要前躯体之一,磷酸铁的形貌和粒度大小对磷酸铁锂材料的电化学性能有较大影响.为了更好地实现磷酸铁的可控制备,有效改善磷酸铁锂的电化学性能,文中采用硝酸铁和磷酸反应合成磷酸铁的液相结晶控制工艺,研究了反应结晶釜中反应物浓度、温度、搅拌速度与沉淀物颗粒粒径之间的关系,结果表明:沉淀物...
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| 关 键 词： | 锂离子电池 控制结晶法 球形磷酸铁 粒数衡算方程 团聚和破碎动力学 |
Agglomeration-size model of ferric phosphate spherical particle prepared by controlled crystallization |
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| ZHANG Zhen,PU Wei-hua,REN Jian-guo,WU Yu-ling,HE Xiang-ming.Agglomeration-size model of ferric phosphate spherical particle prepared by controlled crystallization[J].Chemical Engineering,2011,39(8):20-24. |
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| Authors: | ZHANG Zhen PU Wei-hua REN Jian-guo WU Yu-ling HE Xiang-ming |
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| Affiliation: | ZHANG Zhen,PU Wei-hua,REN Jian-guo,WU Yu-ling,HE Xiang-ming(Institute of Nuclear and New Energy Technology,Tsinghua University,Beijing 100084,China) |
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| Abstract: | FePO4(FP) is one of the main precursors for preparing LiFePO4(LFP)as the Li-ion battery cathode.FP particle size and morphology is of crucial importance for electro-chemical performance of certain LFP battery.For the purpose of controlling the prepared FP spherical particle size and improving the elector-chemical performance of LFP,the influences of reactants concentrations,reaction temperature,agitation speed in the crystallization reactor on the agglomeration-size of the FP were investigated by using the ... |
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| Keywords: | Li-ion battery controlled crystallization FePO4 spherical particle population balance equation agglomeration and disruption kinetics |
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