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化学学报
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化学学报 ›› 1992, Vol. 50 ›› Issue (12): 1150-1156. 上一篇    下一篇

研究论文

电化学嵌锂尖晶石型Li~xFe~3-ωO~4的电子结构

陈俊明;黄建顺   

  1. 中国科学院上海冶金研究所
  • 发布日期:1992-12-15

Electronic structure of spinel type Li~xFe~3-ωO~4 inserted lithium electrochemistry

CHEN JUNMING;HUANG JIANSHUN   

  • Published:1992-12-15

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Mossbauer谱学研究了Li│LiClO~4-PC│Fe~3-ωO~4电池放电过程中阳极反应电子在阴极Fe~3-ωO~4中的分布得出,一小部分电子进入氧化铁八面体FeO~6的t2~g非键轨道成为跳变电子,大部分电子则进入较高能量的反键轨道.

关键词: 氧化铁, 电池, 氧化锂, 电子结构, 锂, 穆斯堡尔谱法, 嵌入反应, 电极反应, 高氯酸锂, 丙二醉碳酸酯

The distributions of electrons coming from the anode and reacting at an Fe3-wO4 (w = 0-0.33) cathode during discharge of a Li/LiClO4-PC/Fe3-wO4 (PC = propylene carbonate) cell were studied by Moessbauer spectroscopy. Only a small part of electrons entered into the t2g non-bonded orbit of octahedral FeO6 of Fe3-wO4, but a large no. of electrons get into and anti-bonded orbit holding higher energy.

Key words: IRON OXIDE, BATTERIES, LITHIUM OXIDE, ELECTRONIC STRUCTURE, LITHIUM, MOSSBAUER SPECTROMETRY, INTERCALATION REACTION, ELECTRODE REACTION, LITHIUM PERCHLORATE

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