| LiFePO4/CNT复合材料的制备及电化学性能 |
| |
| 引用本文： | 张勇,杜培培,王力臻,张爱勤,宋延华,李晓峰.LiFePO4/CNT复合材料的制备及电化学性能[J].北京科技大学学报,2011,33(2):205-209. |
| |
| 作者姓名： | 张勇 杜培培 王力臻 张爱勤 宋延华 李晓峰 |
| |
| 作者单位： | 郑州轻工业学院河南省表界面科学重点实验室; |
| |
| 基金项目： | 国家自然科学基金资助项目(No.21001097); 河南省科技厅基础与前沿技术研究项目(No.102300410107); 河南省高等学校青年骨干教师资助计划项目(豫教高[2009]844号); 郑州市科技攻关项目(No.0910SGYG23259); 郑州市金水区科技攻关项目(金科字[2009]35号(35)) |
| |
| 摘 要： | 采用溶胶凝胶-微波法制备LiFePO4/碳纳米管(CNT)复合正极材料.考察不同微波时间和CNT含量对其电化学性能的影响,并通过X射线衍射(XRD)和扫描电子显微镜(SEM)对样品的晶型结构和表面形貌进行表征.结果表明:掺CNT量为2%(质量分数)和微波18 min所得样品有较好的电化学性能;0.1C充放电的首次放电比容量为142 mAh.g-1,第10次循环的比容量为136 mAh.g-1.
|
| 关 键 词： | 锂电池 正极材料 碳纳米管 溶胶凝胶法 微波加热 |
Synthesis and electrochemical performances of LiFePO4/CNT composite materials |
| |
| ZHANG Yong,DU Pei-pei,WANG Li-zhen,ZHANG Ai-qin,SONG Yan-hua,LI Xiao-feng.Synthesis and electrochemical performances of LiFePO4/CNT composite materials[J].Journal of University of Science and Technology Beijing,2011,33(2):205-209. |
| |
| Authors: | ZHANG Yong DU Pei-pei WANG Li-zhen ZHANG Ai-qin SONG Yan-hua LI Xiao-feng |
| |
| Institution: | ZHANG Yong,DU Pei-pei,WANG Li-zhen,ZHANG Ai-qin,SONG Yan-hua,LI Xiao-feng Henan Provincial Key Laboratory of Surface Interface Science,Zhengzhou University of Light Industry,Zhengzhou 450002,China |
| |
| Abstract: | LiFePO4/carbon nanotube(CNT) composite cathode materials were synthesized by a sol-gel-microwave method.The effects of microwave time and CNT content on the electrochemical properties of LiFePO4/CNT were studied and the crystal structure and surface morphology were characterized by X-ray diffraction(XRD) and scanning electron microscopy(SEM).The results show that the samples with better electrochemical performance are obtained when the CNT content in LiFePO4/CNT is 2% and the microwave time is 18 min.When c... |
| |
| Keywords: | lithium batteries cathode materials carbon nanotubes sol-gel process microwave heating |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
