气氛对LiMn2O4中氧脱出和嵌入的影响

材料导报, 2004, 18(6): 96-104.

1.华南理工大学材料学院,广州,510641

2.广西大学材料科学研究所,南宁,530004

3.华南理工大学材料学院,广州,510641

The Effects of Atmosphere on the Extraction and Insertion of Oxygen in LiMn2O4

用热重(TG)和X射线衍射(XRD)对比研究了气氛对LiMn2O4中氧脱出和嵌入的影响.TG和XRD说明在氧气和空气气氛下LiMn2O4中的氧能可逆地脱出和嵌入,而在氩气中却不能.提高气氛的含氧量有利于抑制加热中LiMn2O4氧的脱出,促进冷却中氧的嵌入.气氛对氧脱嵌过程的相变有显著的影响.

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