Synthesis and characterization of spherical morphology [Ni0.4Co0.2Mn0.4](3)O-4 materials for lithium secondary batteries

Oh, Sung Woo; Park, Sang-Ho; Amine, Khalil; Sun, Yang-Kook

doi:10.1016/j.jpowsour.2006.01.023

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Synthesis and characterization of spherical morphology [Ni0.4Co0.2Mn0.4](3)O-4 materials for lithium secondary batteries

Oh, Sung Woo;
Park, Sang-Ho;
Amine, Khalil;
Sun, Yang-Kook

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21

초록

Spherical morphology [Ni0.4Co0.2Mn0.4](3)O-4 materials have been synthesized by ultrasonic spray pyrolysis. The Li[Ni(0.4)ACo(0.2)Mn(0.4)]O-2 powders were prepared at various pyrolysis temperatures between 500 and 900 degrees C. The Li[Ni0.4Co0.2Mn0.4]O-2 material prepared at a pyrolysis temperature of 600 degrees C samples are exhibited excellent electrochemical cycling performance and delivered the highest discharge capacity at over 180 mAh g(-1) between 2.8 and 4.4 V. The structural, electrochemical, morphological property and thermal stability of the powders were characterized by X-ray diffraction (XRD), galvanostatic charge/discharge testing, scanning electron microscopy (SEM), and differential scanning calorimeter (DSC), respectively.

키워드

lithium secondary batteries; spray pyrolysis; positive materials; layered materials; electrochemical properties; ULTRASONIC SPRAY-PYROLYSIS; ION BATTERIES; PARTICLES; CATHODE; LIMNO2

제목: Synthesis and characterization of spherical morphology [Ni0.4Co0.2Mn0.4](3)O-4 materials for lithium secondary batteries

저자: Oh, Sung Woo; Park, Sang-Ho; Amine, Khalil; Sun, Yang-Kook

DOI: 10.1016/j.jpowsour.2006.01.023

발행일: 2006-09

유형: Article

저널명: Journal of Power Sources

권: 160

호: 1

페이지: 558 ~ 562