| LiNi1/3Co1/3Mn1/3O2的蔗糖改性研究 |
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| 引用本文： | 裴力,龚强,何雨石,廖小珍,马紫峰. LiNi1/3Co1/3Mn1/3O2的蔗糖改性研究[J]. 电源技术, 2008, 32(11) |
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| 作者姓名： | 裴力 龚强 何雨石 廖小珍 马紫峰 |
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| 作者单位： | 上海交通大学化学工程系,上海,200240 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)，上海市科委资助项目 |
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| 摘 要： | 首次采用一种固相自引发基团置换反应法制备了蔗糖改性的LiNi1/3Co1/3Mn1/3O2材料.采用X射线衍射(XRD)、场发射扫描电镜(SEM)技术对产物的结构和形貌进行了表征,同时对其电化学性能进行了检测.结果表明,在前驱体中加入少量的蔗糖可以有效改善LiNi1/3Co1/3Mn1/3O2材料的微观结构和电化学性能.在3～4.3 V的充放电电压区间内.添加质量分数3%蔗糖所制备的LiNi1/3Co1/3Mn1/3O2材料显示出最高的初始放电比容量0.1 C达到183 mAh/g.
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| 关 键 词： | 锂离子电池 正极材料 电化学性能 蔗糖 |
Investigation of LiNi1/3Co1/3Mn1/3O2 modified by sucrose |
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| PEI Li,GONG Qiang,HE Yu-shi,LIAO Xiao-zhen,MA Zi-feng. Investigation of LiNi1/3Co1/3Mn1/3O2 modified by sucrose[J]. Chinese Journal of Power Sources, 2008, 32(11) |
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| Authors: | PEI Li GONG Qiang HE Yu-shi LIAO Xiao-zhen MA Zi-feng |
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| Abstract: | The starting materials of LiNi1/3Co1/3Mn1/3O2 modified by sucrose were prepared by using a simple self-propagating solid-state metathesis method with the help of ball milling and the following calcination.The crystal structure,morphology and the electrochemical performance of the samples were investigated by XRD,field emission scanning electron microscopy(FESEM)and electrochemical measurements.It is foundthat adding a small amount of sucrose in precursor can improve effectively the microstructure and electrochemical characteristics of LiNi1/3Co1/3Mn1/3O2 products.The specific capacity of the LiNi1/3Co1/3Mn1/3O2 materials with 3% sucrose is 183mAh/g amongthe voltage range 3-4.3V at 0.1C rate. |
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| Keywords: | LiNi1/3Co1/3Mn1/3O2 |
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