| 合成条件对尖晶石LiMn_2O_4的电化学性能的影响 |
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| 引用本文： | 徐俊峰,江志裕.合成条件对尖晶石LiMn_2O_4的电化学性能的影响[J].电化学,2001,7(4):421-426. |
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| 作者姓名： | 徐俊峰 江志裕 |
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| 作者单位： | 复旦大学化学系,复旦大学化学系 上海200433
,上海200433 |
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| 基金项目： | 国家自然科学基金，29833090， |
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| 摘 要： | 以Li2 CO3、LiOH、LiNO3以及电解MnO2 (EMD)作原料 ,用固相反应法合成了尖晶石LiMn2 O4 .结果表明 ,反应物种类及合成条件对LiMn2 O4 的电化学性质有很大的影响 .其中以LiNO3和EMD为合成原料制得的LiMn2 O4 性能最佳 .其制备条件分两步 :先在 2 80℃加热 6h ,使熔融的LiNO3渗入EMD微孔 ,然后在 75 0℃下焙烧合成
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| 关 键 词： | 固相反应法 尖晶石LiMn2O4 锂离子电池 |
| 文章编号： | 1006-3471(2001)04-0421-06 |
| 收稿时间： | 2001-11-28 |
| 修稿时间： | 2001年1月9日 |
The Influence of Synthesis Conditions on the Electrochemical properties of spinel LiMn2O4 |
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| XU Jun feng,JIANG Zhi yu.The Influence of Synthesis Conditions on the Electrochemical properties of spinel LiMn2O4[J].Electrochemistry,2001,7(4):421-426. |
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| Authors: | XU Jun feng JIANG Zhi yu |
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| Institution: | XU Jun feng,JIANG Zhi yu * |
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| Abstract: | The electrochemical properties of spine LiMn 2O 4 synthesized via a solid state reaction were investigated. Electrolysis MnO 2(EMD), Li 2CO 3,LiOH and LiNO 3 were used as the initial materials. It was found that the electrochemical properties of LiMn 2O 4 were strongly influenced by the synthesis conditions. The LiMn 2O 4 samples prepared via the reaction of EMD and LiNO 3 showed the best properties for a lithium ion intercalation reaction. The procedure includes two steps: pretreatment at 280 ℃ for 6 hours to initiate the permeation of melting LiNO 3 into the micropores of EMD particles, followed by sintering at 750 ℃ for 24 hours. |
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| Keywords: | Solid state reaction Spinel LiMn 2O 4 Lithium ion battery |
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