| 电解刻蚀集流体铜箔对负极性能的影响 |
| |
| 引用本文： | 樊星,郑永平,沈万慈. 电解刻蚀集流体铜箔对负极性能的影响[J]. 电池, 2009, 39(3) |
| |
| 作者姓名： | 樊星 郑永平 沈万慈 |
| |
| 作者单位： | 清华大学材料科学与工程系,先进材料教育部重点实验室,北京,100084;清华大学材料科学与工程系,先进材料教育部重点实验室,北京,100084;清华大学材料科学与工程系,先进材料教育部重点实验室,北京,100084 |
| |
| 摘 要： | 用扫描电镜、交流阻抗谱和恒流充放电等方法,分析了电解刻蚀集流体铜箔对纳米硅和微晶石墨负极性能的影响.电解刻蚀后,铜箔表面形成了沟壑式形貌,与负极材料紧密接触;以0.1 C充放电,纳米硅和微晶石墨负极的首次充放电效率分别提高了7.0%和7.3%,第30次循环的放电比容量分别从192 mAh/g、325 mAh/g提高到217 mAh/g、358 mAh/g.
|
| 关 键 词： | 集流体 铜箔 电解刻蚀 纳米硅 微晶石墨 负极 |
Influence of electrolytic etching currentcollector Cu foil on the performance of anode |
| |
| FAN Xing,ZHENG Yong-ping,SHEN Wan-ci. Influence of electrolytic etching currentcollector Cu foil on the performance of anode[J]. Battery Bimonthly, 2009, 39(3) |
| |
| Authors: | FAN Xing ZHENG Yong-ping SHEN Wan-ci |
| |
| Affiliation: | FAN Xing,ZHENG Yong-ping,SHEN Wan-ci(Key Laboratory for Advanced Materials of Ministry of Education,Department ofMaterials Science , Engineering,Tsinghua University,Beijing 100084,China) |
| |
| Abstract: | The influences of electrolytic etching current collector Cu foil on the electrochemical performance of nano-Si and microcrystalline graphite anodes were analyzed by SEM,EIS and galvanostatic charge-discharge methods.After electrolytic etching,the morphology of homogeneous ravine was formed on the surface of Cu foils,which gave a tighter contact with the anode materials,when charge-discharge at 0.1 C,the initial charge-discharge efficiencies of nano-Si and microcrystalline graphite anodes were increased 7.0%... |
| |
| Keywords: | current collector Cu foil electrolytic etching nano-Si microcrystalline graphite anode |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
