| LiMn_2O_4的溶液─凝胶─酯化法合成反应机制 |
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| 引用本文： | 尉继英,孙长敏,高海春.LiMn_2O_4的溶液─凝胶─酯化法合成反应机制[J].盐湖研究,1997(1). |
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| 作者姓名： | 尉继英 孙长敏 高海春 |
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| 作者单位： | 中国科学院青海盐湖研究所!西安，710043 |
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| 摘 要： | 本文以溶胶─凝胶─酯化法合成LiMn2O4尖晶石粉体材料，用FT—IR、TG—DTA以及XRD研究了LiMn2O4的形成机制。整个反应过程可分为凝胶的形成和干凝胶的分解两阶段，前体物在液相中经络合、酯化、聚合而形成凝胶，不同的投料Li／Mn（摩尔比）值使凝胶分解形成LiMn2O4经历不同的反应历程，也使产物具有不同的物相组成。
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| 关 键 词： | 锂离子电池 正极材料 LiMn_2O_4 溶胶─凝胶─酯化合成法 |
Sol-gel Esterification Process for LiMn_2O_4 Preparation |
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| Wei Jiying,Sun Changming,Gao Haichun.Sol-gel Esterification Process for LiMn_2O_4 Preparation[J].Journal of Salt Lake Research,1997(1). |
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| Authors: | Wei Jiying Sun Changming Gao Haichun |
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| Abstract: | LiMn2O4 powder is prepared via sol-gel-esterification process. The mechanism of the process is investigated by FT-IR、TG-DTA and XRD techniques. The whole process can be divided into two parts, the formation of xerogel and the decomposition of it. The salts are mixed in solution and changed into xerogel via chelation, esterification and polycondensation. The xerogel with different Li/Mn value can decompose in different ways and lead to different products. |
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| Keywords: | Lithium-ion battery Positive electrode LiMn_2O_4 Sol-gel esterification process |
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