| 溶胶-凝胶法制备尖晶石锂锰氧正极材料 |
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| 引用本文： | 刘素琴,路雁雁,黄可龙. 溶胶-凝胶法制备尖晶石锂锰氧正极材料[J]. 无机材料学报, 2005, 20(6): 1368-1372 |
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| 作者姓名： | 刘素琴 路雁雁 黄可龙 |
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| 作者单位： | 中南大学化学化工学院功能材料化学研究所,长沙,410083 |
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| 基金项目： | 国家自然科学基金（20376086）;高校博士点基金（20030533001） |
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| 摘 要： | 以丙氨酸为螯合剂采用软化学法制备了锂锰氧化物.XRD分析结果表明所合成的产物为尖晶石型锰酸锂;采用SEM对产物的形貌进行了表征,结果表明所合成产物主要为棒状,且颗粒大小分布均匀.通过FT-IR及TG/DTA等手段初步探讨了产物的合成机理.采用循环充放电测试考察了产物的电化学性能,结果表明采用此法制备的产物具有优异的电化学性能.
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| 关 键 词： | LiMn2O4 溶胶-凝胶 电化学性能 |
| 文章编号： | 1000-324X（2005）06-1368-05 |
| 收稿时间： | 2004-10-20 |
| 修稿时间： | 2004-10-202004-12-31 |
Preparation of LiMn2O4 by Sol-Gel Method and Its Properties |
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| LIU Su-Qin,LU Yan-Yan,HUANG Ke-Long. Preparation of LiMn2O4 by Sol-Gel Method and Its Properties[J]. Journal of Inorganic Materials, 2005, 20(6): 1368-1372 |
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| Authors: | LIU Su-Qin LU Yan-Yan HUANG Ke-Long |
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| Affiliation: | InstituteofFunctionalMaterials&Chemistry;SchoolofChemistryandChemicalEngineering;CentralSouthUniversity;Changsha410083,China |
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| Abstract: | Lithium manganese oxide, as a cathode material for Li-ion battery, was prepared by the sol-gel method with Ala as a chelating agent. The powder samples were confirmed to be a single phase LiMn2O4 by X-ray diffraction (XRD) studies. The textural properties of the powder samples were examined by scanning electron microscope (SEM), showing that the powders mainly consist of rod-shaped particles with uniform particle sizes. The synthesis mechanism of LiMn2O4 was preliminarily investigated by FT-IR and TG-DTA etc. Electrochemical properties of the sample were evaluated with charge and discharge tests. The results show that the samples have excellent electrochemical properties. |
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| Keywords: | LiMn2O4 sol-gel electrochemical properties |
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