| 溅射功率对Sn薄膜负极材料循环性能的影响 |
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| 引用本文： | 赵灵智,胡社军.溅射功率对Sn薄膜负极材料循环性能的影响[J].电源技术,2009,33(7). |
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| 作者姓名： | 赵灵智 胡社军 |
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| 作者单位： | 1. 华南师范大学,化学与环境学院,广东,广州,510006;广东高校电化学储能与发电技术重点实验室,广东,广州,510006
2. 五邑大学,数理系,广东,江门,529020;广东高校电化学储能与发电技术重点实验室,广东,广州,510006 |
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| 基金项目： | 国家自然科学基金，中国博士后科学基金 |
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| 摘 要： | 采用磁控溅射法分别在150、250、400 W功率下制备了3种锂离子电池用Sn薄膜负极材料.通过X射线衍射光谱法(XRD)、扫描电子显微镜法(SEM)、恒电流充放电对3种薄膜材料的结构、形貌及循环性能进行了表征.实验结果表明,随着溅射功率增加,薄膜的非晶成分减少,晶化加剧,颗粒粗化.在相同溅射时间20 min的情况下.当溅射功率为250 W时,获得的Sn薄膜电极具有最好的循环性能,首次嵌锂容量为653.8 mAh/g,30次循环后容量维持在515mAh/g.容量保持率达79%.
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| 关 键 词： | 锂离子电池 负极 磁控溅射 锡薄膜 溅射功率 |
Influence of sputtering power on cyclic performance of Sn thin films as anode of lithium ion battery |
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| ZHAO Ling-zhi,HU She-jun.Influence of sputtering power on cyclic performance of Sn thin films as anode of lithium ion battery[J].Chinese Journal of Power Sources,2009,33(7). |
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| Authors: | ZHAO Ling-zhi HU She-jun |
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| Affiliation: | ZHAO Ling-zhi1,3,HU She-jun2,3(1.School of Chemistry and Environment,South China Normal University,Guangzhou Guangdong 510006,China,2.Department of Mathematics and Physics,Wuyi University,Jiangmen Guangdong 529020,3.Key Lab of Electrochemical Technology on Energy Storage and Power Generation in Guangdong Universities,China) |
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| Abstract: | Three kinds of Sn thin films as anodes of lithium ion battery have been fabricated by magnetron sputtering with sputtering power of 150 W,250 W and 400 W,respectively.The crystal structure,morphology and cycle performance of the films were characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM),the galvanostatic charge/discharge(GC) measurement.The experimental results show that with the sputtering power increasing,the amorphous of the films decreases,the crystallization increases and the ... |
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| Keywords: | lithium-ion battery anode magnetron sputtering Sn film sputtering power |
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