| 锂离子电池正极材料LiMn2O4的合成与晶体结构（英） |
| Synthesis and Crystal Structure of LiMn2O4 Cathode Material for Li-ion Battery |
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| 摘要: |
| 关键词: 锂离子电池 正极材料 LiMn2O4 晶体结构 |
| 基金项目: |
| Abstract: Spinel LiMn2O4 powders were prepared using two-step synthesis method consisting of solid-state reaction method and citrate modified sol-gel method. The effects of the calcination temperature and the Li/Mn ratio of raw materials were studied on the physicochemical and electrochemical properties of the spinel LiMn2O4 powders, such as crystallinity, lattice constant and density. The title compound was characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Polycrystalline LiMn2O4 powers calcined at 750 ℃ were found to be composed of very uniformly-sized microcrystal with an average particle size of 300 nm. The improvement in electrochemical properties was mainly attributed to the process of re-grinding by absolute alcohol. |
| Keywords: Li-ion battery cathode material LiMn2O4 crystal structure |
| 投稿时间：2004-06-08 修订日期：2004-10-31 |
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| 阮艳莉,唐致远,韩恩山,冯季军.锂离子电池正极材料LiMn2O4的合成与晶体结构（英）[J].无机化学学报,2005,21(2):232-236. |
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