| 用酚醛树脂为碳源制备碳包覆Li4Ti5O12材料 |
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| 引用本文： | 吕岩,张浩,曹高萍,王碧燕.用酚醛树脂为碳源制备碳包覆Li4Ti5O12材料[J].电池工业,2010,15(5):296-299. |
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| 作者姓名： | 吕岩 张浩 曹高萍 王碧燕 |
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| 作者单位： | 北京科技大学,北京,100191;北京科技大学,北京100191;防化研究院,北京100191;防化研究院,北京,100191 |
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| 摘 要： | 碳包覆改性是提高尖晶石型钛酸锂倍率性能比较有效的方法之一。用兼顾水溶性和热固性的酚醛树脂作为碳源,制备出"核-壳"结构的C/Li4Ti5O12复合材料。利用SEM、TEM和电化学表征测试,着重研究了包覆的碳含量对材料电化学性能的影响,最终确定碳包覆量为1%wt时,能最有效地提高Li4Ti5O12的倍率性能。
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| 关 键 词： | Li4Ti5O12 酚醛树脂 碳包覆 |
Preparation of carbon-coated Li4Ti5O12 composite using phenol formaldehyde resin as the carbon source |
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| Lü Yan,ZHANG Hao,CAO Gaoping,WANG Biyan.Preparation of carbon-coated Li4Ti5O12 composite using phenol formaldehyde resin as the carbon source[J].Chinese Battery Industry,2010,15(5):296-299. |
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| Authors: | Lü Yan ZHANG Hao CAO Gaoping WANG Biyan |
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| Affiliation: | 1.University of Science and Technology Beijing,Beijing 100191,China;2.Research Institute of Chemical Defense,Beijing 100191,China;) |
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| Abstract: | One effective way to achieve high rate characteristics for spinel lithium titanate is to prepare carbon coated Li4Ti5O12.The ＂core-shell＂ structured C/Li4Ti5O12 composite was prepared using phenol-formaldehyde resin as carbon source which was water-soluble.We mainly studied on the influence of contents of coated carbon on the electrochemical characteristics of the material with SEM,TEM and electrochemical tests.The composite with 1%wt carbon could effectively improve the rate capability of Li4Ti5O12. |
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| Keywords: | Li4Ti5O12 |
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