材料科学
电解质
碳纳米管
电极
电化学
碳酸乙烯酯
碳酸丙烯酯
化学工程
复合材料
纳米技术
化学
工程类
物理化学
作者
Changhee Lee,Chang-Su Kim,Yun Taek Jeong,Junhwan Kim,Soon-Ki Jeong,Yang Soo Kim
出处
期刊:Materials Science Forum
日期:2016-05-01
卷期号:859: 75-78
被引量:2
标识
DOI:10.4028/www.scientific.net/msf.859.75
摘要
We investigated the electrochemical behavior and properties of multi-wall carbon nanotubes (MWCNTs) as a novel negative electrode for calcium ion batteries during charging and discharging. The second charge and discharge capacities were ~63 and ~43 mAh g –1 in propylene carbonate-based electrolyte and ~86 and ~60 mAh g –1 in ethylene carbonate-based electrolyte, respectively. X-ray diffraction analysis results showed that the inter-layer distance of the MWCNTs was increased after charging, indicating that calcium ions were intercalated into the MWCNT graphitic sheets during the charging. The electrochemical performance of the MWCNT electrode was improved by using ball milling to introduce defects.
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