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投稿时间：2011-01-18 网络发布日期：2013-01-18
投稿时间：2011-01-18 网络发布日期：2013-01-18
中文摘要: 采用单一温区一次烧结合成工艺，在工业窑炉中成功合成了尖晶石锰酸锂。用XRD、SEM、激光粒度仪和比表面积测定仪对合成的正极材料的物理性能进行了表征，采用软包装全电池对合成的正极材料的电化学性能进行了测试。结果表明：所合成的正极材料为不含杂相的立方尖晶石结构，比表面积0.2~0.8 m2/g，晶格常数a=0.823~0.824 nm；形貌为由直径大于1.0 μm的近八面体形一次颗粒团聚形成的二次颗粒；应用所合成材料作为正极活性材料制作全电池，正极片压实密度达到2.8 g/cm3以上，首次放电容量在108 mA·h/g以上。
Abstract:The spinel LiMn2O4 was synthesized by the modified method of solid-state reaction with one step heat treatment at single temperature interval in the industrial furnace. The physical characterization was studied by XRD, SEM, Laser Particle Size Analyzer and Surface Area (BET) Analyzer,respectivelt, the electrochemical capability was investigated according to the soft-packed battery testing with the material as active material. According to the results, the samples have perfect spinel structure and the BET is 0.2~0.8 m2/g, the grant constant is a=0.823~0.824 nm. The secondary particles are formed by the aggregation of primary particles like abbreviated octahedron whose particle diameter is 1.0 μm or more. The cells are produced using the material as anode active material, the polar-plate compacting density is 2.8 g/cm3 or over，the initial capacity is 108 mA·h/g or more.
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引用文本：
刘爱强，李碧平，熊学，凃文.钒元素微量掺杂尖晶石锰酸锂的合成与表征[J].有色金属（冶炼部分）,2011(10):50-53.
.Synthesis and Characterization of Spinel Lithium Manganese Oxide Doped with Trace Vanadium[J].Nonferrous Metals (Extractive Metallurgy),2011(10):50-53.
刘爱强，李碧平，熊学，凃文.钒元素微量掺杂尖晶石锰酸锂的合成与表征[J].有色金属（冶炼部分）,2011(10):50-53.
.Synthesis and Characterization of Spinel Lithium Manganese Oxide Doped with Trace Vanadium[J].Nonferrous Metals (Extractive Metallurgy),2011(10):50-53.
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