高等学校化学学报 ›› 1993, Vol. 14 ›› Issue (9): 1261.

• 研究论文 • 上一篇    下一篇

锂-氧化铜电池反应机理(Ⅰ)——光电化学方法研究阴极嵌入反应

祖延兵, 董庆华   

  1. 武汉大学化学系, 武汉 430072
  • 收稿日期:1992-10-05 修回日期:1993-03-20 出版日期:1993-09-24 发布日期:1993-09-24
  • 通讯作者: 董庆华.
  • 作者简介:第一作者:男, 26岁, 硕士.
  • 基金资助:

    国家自然科学基金

Reaction Mechanism of Li-CuO Cell (Ⅰ) ——Investigation of the Cathode Intercalation Reaction by Photoelectrochemical Method

ZU Yan-Bing, DONG Qing-Hua   

  1. Department of Chemistry, Wuhan University, Wuhan, 430072
  • Received:1992-10-05 Revised:1993-03-20 Online:1993-09-24 Published:1993-09-24

摘要: 采用光电化学方法现场研究了锂-氧化铜电池的嵌入反应,氧化铜电极光电流的变化直观地反映了该电化学嵌入过程.发现锂离子嵌入氧化铜电极的反应始于2.5V(vs.Li/Li+),锂以施主杂质状态存在于氧化铜晶格中,改变了阴极的半导体性质.在较低电位下,可能有产生氧化亚铜的后续反应.

关键词: 光电化学, 锂-氧化铜电池, 嵌入反应

Abstract: The cathode intercalation reaction of Li-CuOcell was studied in-situ by photoelec-trochemical method.The changes of photocurrent of CuOelectrode reflected the intercalation process directly.It is found that Li+ ions start inserting into CuOlattice at 2.5 V(vs.Li/Li+) and act as the donor impurities, changing the semiconductor property of the cathode.Some succeeding reactions may take place at lower potential, leading to the formation of Cu2O.

Key words: Photoelectrochemistry, Li-CuO cell, Intercalation reaction

TrendMD: