共 19 条
Preparation of LiFePO4 as lithium intercalation compound by emulsion drying method
被引:6
作者:

Myung, ST
论文数: 0 引用数: 0
h-index: 0
机构:
Iwate Univ, Fac Engn, Dept Chem Engn, Morioka, Iwate 0208551, Japan Iwate Univ, Fac Engn, Dept Chem Engn, Morioka, Iwate 0208551, Japan

Komaba, S
论文数: 0 引用数: 0
h-index: 0
机构:
Iwate Univ, Fac Engn, Dept Chem Engn, Morioka, Iwate 0208551, Japan Iwate Univ, Fac Engn, Dept Chem Engn, Morioka, Iwate 0208551, Japan

Kurihara, K
论文数: 0 引用数: 0
h-index: 0
机构:
Iwate Univ, Fac Engn, Dept Chem Engn, Morioka, Iwate 0208551, Japan Iwate Univ, Fac Engn, Dept Chem Engn, Morioka, Iwate 0208551, Japan

Kumagai, N
论文数: 0 引用数: 0
h-index: 0
机构:
Iwate Univ, Fac Engn, Dept Chem Engn, Morioka, Iwate 0208551, Japan Iwate Univ, Fac Engn, Dept Chem Engn, Morioka, Iwate 0208551, Japan
机构:
[1] Iwate Univ, Fac Engn, Dept Chem Engn, Morioka, Iwate 0208551, Japan
关键词:
LiFePO4;
cathode;
lithium-ion battery;
emulsion drying method;
D O I:
10.5796/electrochemistry.71.177
中图分类号:
O646 [电化学、电解、磁化学];
学科分类号:
081704 ;
摘要:
Crystalline olivine type LiFePO4 as cathode material for Li-ion battery was prepared by emulsion drying method. By employing this method, difficulty of conventional preparation, that is, repeated recalcinations and subsequent regrindings, was solved. This method replaced successfully relatively expensive divalent iron to cheaper trivalent iron as a starting material by burning out the emulsion-dried precipitates with carbon, which act as a strong reducing agent. High temperature calcination of the emulsion-dried precursor powders in an Ar atmosphere resulted in high crystalline olivine type LiFePO4 powders which was confirmed and refined by Rietveld method of X-ray diffraction data. The prepared material delivered a capacity as high as 120 and 140 mAh (g-phosphate)(-1) at 25 and 50degreesC, respectively.
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页码:177 / 179
页数:3
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