| 溶胶-凝胶法合成LiAl0.1Mn1.9O4 及其电化学性能 |
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| 引用本文： | 钟清华,袁中直,王辉. 溶胶-凝胶法合成LiAl0.1Mn1.9O4 及其电化学性能[J]. 中山大学学报(自然科学版), 2007, 46(Z1): 149-150 |
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| 作者姓名： | 钟清华 袁中直 王辉 |
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| 作者单位： | 华南师范大学化学与环境学院 广东广州51006 |
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| 摘 要： | 通过溶胶-凝胶法合成LiAl0.1Mn1.9O4,XRD的结果表明掺杂少量的铝后并没有改变晶体的结构。利用恒流充放电测试手段比较研究了尖晶石型的LiAl0.1Mn1.9O4,铝的掺杂后的LiAl0.1Mn1.9O4比没有掺杂的LiMn2O4更好的可逆性能,更好的循环性能。
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| 关 键 词： | 锂离子电池 溶胶-凝胶法 尖晶石 |
| 文章编号： | 0529-6579(2007)S1-0149-02 |
| 修稿时间： | 2007-01-10 |
Synthesis and Electrochemical Properties of LiAl0.1Mn1.9O4 by Sol-gel Method |
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| ZHONG Qing-hua,YUAN Zhong-zhi,WANG Hui. Synthesis and Electrochemical Properties of LiAl0.1Mn1.9O4 by Sol-gel Method[J]. Acta Scientiarum Naturalium Universitatis Sunyatseni, 2007, 46(Z1): 149-150 |
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| Authors: | ZHONG Qing-hua YUAN Zhong-zhi WANG Hui |
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| Abstract: | Spinel-type LiAl0.1Mn1.9O4 have been synthesized by sol-gel method. We found that Al-doped LiMn2O4 can overcome capacity fading, showed relatively good cycling performances. The structural and electrochemical properties of LiAl0.1Mn1.9O4 was investigated by X-ray diffraction(XRD),charge/discharge. Electrochemical test of the Al-doped LiAl0.1Mn1.9O4 showed excellent rate capability, better reversibility than that of no Al-doped LiMn2O4. |
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| Keywords: | LiAl0.1Mn1.9O4 lithium-ion batteries LiAl0.1Mn1.9O4 sol-gel method spinel |
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