Studies on glass transition of lithium-iron phosphate glasses

被引：19

作者：

Gorzkowska, I. ^{[1
]}

Jozwiak, P. ^{[2
]}

Garbarczyk, J. E. ^{[2
]}

Wasiucionek, M. ^{[2
]}

Julien, C. M. ^{[3
]}

机构：

[1] Warsaw Univ Technol, Fac Chem, PL-00664 Warsaw, Poland

[2] Warsaw Univ Technol, Fac Phys, PL-00662 Warsaw, Poland

[3] Univ Paris 06, CNRS UMR 7588, Inst Nanosci Paris, F-75015 Paris, France

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2008年 / 93卷 / 03期

关键词：

cathode materials; DTA; Li-ion batteries; lithium-iron phosphate glasses; phospho-olivines;

D O I：

10.1007/s10973-008-9141-9

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Amorphous analogs of lithium-iron phosphates (LFP) were prepared by standard press-quenching method and their thermal stabilities as well as structural properties were studied for the first time. Glass transition temperature T-g determined by DTA method was observed at the temperature range 492-523 degrees C, depending on the glass composition. The maxima of crystallization peaks were observed in the 555-579 degrees C range. In products obtained after heating LIP to 700 degrees C the XRD patterns have revealed the presence of: LiFePO4 (triphylite), FePO4 (heterosite), alpha-FePO4 (quartz like structure) and Li3Fe2(PO4)(3) (Nasicon like structure) phases.

引用

页码：759 / 762

页数：4

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