| 碳酸盐溶胶-凝胶法制备锂离子电池正极材料LiNi0.5Mn1.5O4 |
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| 引用本文： | 文衍宣,黄振德,肖卉,黄映恒,粟海锋. 碳酸盐溶胶-凝胶法制备锂离子电池正极材料LiNi0.5Mn1.5O4[J]. 材料导报, 2006, 20(Z2): 299-302 |
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| 作者姓名： | 文衍宣 黄振德 肖卉 黄映恒 粟海锋 |
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| 作者单位： | 广西大学化学化工学院,南宁,530004 |
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| 摘 要： | 以聚丙烯酸和碳酸盐(Li:Ni:Mn＝1.05:0.5:1.5)为主要原料,用溶胶-凝胶法合成了LiNi0.5Mn1.5O4.用X射线衍射、DSC-TGA、SEM和恒电流充放电技术研究了工艺条件对材料结构、微观形貌和电化学性能的影响.碳酸盐溶胶-凝胶法可以制备单相尖晶石结构LiNi0.5Mn1.5O4,其放电比容量高达134 mAh/g,经45次循环后仍然可保持初始放电容量的98%.
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| 关 键 词： | 碳酸盐溶胶-凝胶法 锂离子电池 正极材料 |
Preparation of LiNi0.5Mn1.5O4 as Cathode Materials for Lithium Ion Battery by Carbonate Sol-gel |
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| WEN Yanxuan,HUANG Zhende,XIAO Hui,HUANG Yingheng,SU Haifeng. Preparation of LiNi0.5Mn1.5O4 as Cathode Materials for Lithium Ion Battery by Carbonate Sol-gel[J]. Materials Review, 2006, 20(Z2): 299-302 |
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| Authors: | WEN Yanxuan HUANG Zhende XIAO Hui HUANG Yingheng SU Haifeng |
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| Abstract: | In this article, LiNi_ 0.5 Mn_ 1.5 O_4 is synthesized by sol-gel with PAA and carbonate. X-ray diffraction(XRD), DSC-TGA, scanning electron microscopy (SEM) and electrochemical measurement are used to study the effect of synthetic condition on the structure, micro-morphology of LiNi_ 0.5 Mn_ 1.5 O_4. Single spinel LiNi_ 0.5 Mn_ 1.5 O_4 is prepared by carbonate sol-gel. The 1st discharge capacity of LiNi_ 0.5 Mn_ 1.5 O_4 obtained at optimum condition is 134mAh/g, and its capacity retention is 98% after 45th cycle numbers. |
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| Keywords: | LiNi0.5Mn1.5O4 |
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