Synthesis and Characterization of LiNi1/3Co1/3Mn1/3O2 as a Cathode Material for Lithium Batteries by Ultrasonic Spray Pyrolysis

doi:10.3724/SP.J.1077.2007.00637

Abstract

Abstract:

Spherical morphology LiNi_1/3Co_1/3Mn_1/3O₂ as a cathode aterial of lithium ion batteries was successfully synthesized by an ultrasonic spray pyrolysis method. The effects of different precursor solution on the morphology of particles were investigated. The reasons of morphology difference were analysed by using the process mechanism of spray pyrolysis. In addition, the impacts of various post reatment sintering time on electrochemical performances of the samples were characterized. Experimental results show that the cathode material synthesized by ultrasonic spray pyrolysis using nitrate as precursor solution, followed by sintering at 900℃ for 6h, exhibits excellent electrochemical properties. In the voltage range of 3.0--4.3V, initial discharge capacity of the sample is 157.7mAh · g^-1 and its capacity retains 146.6mAh·g^-1 after 40 cycles.

Key words: lithium-ion battery, ultrasonic spray pyrolysis, LiNi1/3Co1/3Mn1/3O2

CLC Number:

TM912

LIU Zhi-Min,HU Guo-Rong,FANG Zheng-Sheng,ZHANG Xin-Long,LIU Ye-Xiang. Synthesis and Characterization of LiNi_1/3Co_1/3Mn_1/3O₂as a Cathode Material for Lithium Batteries by Ultrasonic Spray Pyrolysis[J]. Journal of Inorganic Materials, DOI: 10.3724/SP.J.1077.2007.00637.

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Synthesis and Characterization of LiNi_1/3Co_1/3Mn_1/3O₂as a Cathode Material for Lithium Batteries by Ultrasonic Spray Pyrolysis

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