高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (5): 805.

• 研究简报 • 上一篇    下一篇

尖晶石型LiMn2O4薄膜电极的制备及电化学性质研究──电化学石英晶体微天平(EQCM)技术研究

舒东1, 杨勇1, 夏熙2, 林祖赓1   

  1. 1. 固体表面物理化学国家重点实验室, 厦门大学化学系, 厦门, 361005;
    2. 新疆大学化学系, 乌鲁木齐, 830046
  • 收稿日期:1997-01-14 出版日期:1998-05-24 发布日期:1998-05-24
  • 通讯作者: 杨勇
  • 作者简介:舒东,男,32岁,博士研究生.
  • 基金资助:

    福建省自然科学基金

Preparation and Performance of Spinel LiMn2O4 Thin Films ——An EQCM Technique Study

SHU Dong1, YANG Yong1, XIA Xi2, LIN Zu-Geng1   

  1. 1. State Key Laboratory for Physical Chemistry of Solid Surface, Department of Chemistry, Xiamen University, Xiamen, 361005;
    2. Department of Chemistry, Xinjiang University, Urumqi, 830046
  • Received:1997-01-14 Online:1998-05-24 Published:1998-05-24

关键词: 锂离子电池, 锂锰氧化物膜, 电化学石英晶体微天平技术

Abstract: The intercalation process of Li+ in spinel LiMn2O4 thin films in1 mol/L LiClO4+PC solution has been investigated using EQCM method. The results indicate that a passive solvent film is formed on the lithium-manganese-oxides electrode surface in PC solvent. The Li+ intercalation is a main process in the potential range between 2.5~3.25 V. However, the decomposition of the solvent film and de intercalation of Li+ occur simultaneously when the electrode potentials are controlled between 3.7~4.1V.

Key words: Lithium ion battery, Lithium manganese oxide film, EQCM technique

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