高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (S1): 16.

• 研究论文 • 上一篇    下一篇

镁离子电池正极材料Mg1.2Mn1.8O4的电化学性能研究

袁华堂, 曹建胜, 王一菁, 周勇, 武绪丽, 刘景旺   

  1. 南开大学新能源材料化学研究所, 天津 300071
  • 收稿日期:2001-07-17 出版日期:2001-12-31 发布日期:2001-12-31
  • 通讯作者: 袁华堂(1946年出生),男,教授,博士生导师,从事材料化学研究.Tel:23503623.
  • 基金资助:

    国家自然科学基金项目(批准号:50081004>和天津市自然科学基金(批准号:003803011)资助.

Study on Electrochemical Behavior of the Positive Electrode Mg1.2Mn1.8O4 in Magnesium Ion Battery

YUAN Hua-Tang, CAO Jian-Sheng, WANG Yi-Jing, ZHOU Yong, Wu Xu-Li, LIU Jing-Wang   

  1. Institute of New Energy Material Chemistry, Nankai University, Tianjin 300071, China
  • Received:2001-07-17 Online:2001-12-31 Published:2001-12-31

摘要:

用髙温固相合成方法,合成了具有尖晶石结构的Mg1.2Mn1.8O4材料,并用X射线衍射(XRD)实验和扫描电镜(SEM)实验对产物进行了研究,利用充放电和交流阻抗实验,研究了Mg1.2Mn1.8O4在非水有机电解液中脱嵌镁离子的性能.通过交流阻抗研究发现,镁离子嵌入的电化学过程为混合控制.

关键词: 镁离子电池, 嵌入反应, Mg1.2Mn1.8O4, 电化学性能

Abstract:

Mg1.2Mn1.8O4 with structure of spinel was synthesized by the method of solid synthesis under high temperature and was studied by X-ray diffraction (XRD) and scanning electron microscope (SEM). The behavior of magnesium ion intercalation in nonaqueous organic electrolyte was studied by means of charge experiments and electrochemical impedance spectra (EIS). The results showed that the performance of magnesium ion intercalating is similar with that of lithium and the electrochemical process is mix controlled.

Key words: Magnesium ion battery, Intercalation reaction, Mg1.2Mn1.8O4, Electrochemical behavior

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