| 锂离子电池正极材料LiMn2O4的合成与晶体结构（英） |
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| 引用本文： | 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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| 作者姓名： | 阮艳莉 唐致远 韩恩山 冯季军 |
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| 作者单位： | 1. 天津大学化工学院应用化学系,天津,300072
2. 河北工业大学化工学院应用化学系,天津,300130 |
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| 基金项目： | 国家自然科学基金资助项目(No.20273047) |
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| 摘 要： | 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.
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| 关 键 词： | 锂离子电池； 正极材料； LiMn2O4； 晶体结构 |
| 收稿时间： | 2004-06-08 |
| 修稿时间： | 2004-10-31 |
Synthesis and Crystal Structure of LiMn2O4 Cathode Material for Li-ion Battery |
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| RUAN Yan-Li,TANG Zhi-Yuan,HAN En-Shan and FENG Ji-Jun. Synthesis and Crystal Structure of LiMn2O4 Cathode Material for Li-ion Battery[J]. Chinese Journal of Inorganic Chemistry, 2005, 21(2): 232-236 |
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| Authors: | RUAN Yan-Li TANG Zhi-Yuan HAN En-Shan FENG Ji-Jun |
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| Affiliation: | Department of Applied Chemistry, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072,Department of Applied Chemistry, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072,Department of Applied Chemistry, School of Chemical Engineering and Technology, Hebei University of Technology , Tianjin 300130 and Department of Applied Chemistry, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072 |
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| 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. |
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| Keywords: | Li-ion battery cathode material LiMn2O4 crystal structure |
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