Plasma-processed homogeneous magnesium hydride/carbon nanocomposites for highly stable lithium storage
发布时间：2020-05-23
点击次数：
影响因子：8.67
DOI码：10.1007/s12274-017-1902-y
所属单位：Peking Univ
发表刊物：Nano Res.
摘要：Magnesium hydride (MgH2) is a high-capacity anode material for lithium ion batteries, which suffers from poor cycling stability. In this study, we describe a thermal plasma-based approach to prepare homogeneous MgH2/C nanocomposites with very high cycling stability. In this process, magnesium evaporation is coupled with carbon generation from the plasma decomposition of acetylene, leading to a homogeneous Mg/C nanocomposite, which can be easily converted to MgH2/C by hydrogenation. The MgH2/C nanocomposite achieves a high reversible capacity of up to 620 mAh.g(-1) after 1,000 cycles with an ultralow decay rate of only 0.0036% per cycle, which represents a significantly improved performance compared to previous results.
合写作者：Jun, Chen, Yanru, Guo, Xinyao, Zheng
第一作者：Xinghua, Chang
论文类型：期刊论文
通讯作者：Xingguo, 邹理, Jie, Zheng
一级学科：0805 材料科学与工程
文献类型：J
是否译文：否
发表时间：2018-05-01