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Preparation and electrochemical properties of cathode materials for lithium ion battery by aerosol process

机译：气溶胶法制备锂离子电池正极材料及其电化学性能

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摘要

Lithium transition metal oxide powders such as LiMn_2O_4, LiNi_(0.5)Mn_(1.5)O_4, LiCo_(1/3)Ni_(1/3)Mn_(1/3)O_2 and LiFePO_4 were prepared by spray pyrolysis. The particle characteristics of them were determined by SEM, XRD, BET and AAS. Lithium transition metal oxide powders had spherical morphology of 1 -2 μm with narrow size distribution and homogeneous chemical composition. The electrochemical properties of cathode were also estimated by rechargeable capacity, cycle performance, thermal stability and high rate charging. The cathodes obtained by spray pyrolysis exhibited that the discharge capacity of LiMn_2O_4, LiNi_(0.5)Mn_(1.5)O_4, LiCo_(1/3)Ni,/3Mn_(1/3)O_2 and LiFePO_4 was 120, 130, 170 and 150mAh/g, respectively and stable up to 500 cycles at a rate of 1 C. Mass production of lithium transition metal oxide powders was carried out by using internal combustion type of spray pyrolysis. The electrochemical properties of cathode obtained by internal combustion type spray pyrolysis were comparable with those obtained by spray pyrolysis.
机译：通过喷雾热解制备LiMn_2O_4，LiNi_（0.5）Mn_（1.5）O_4，LiCo_（1/3）Ni_（1/3）Mn_（1/3）O_2和LiFePO_4等锂过渡金属氧化物粉末。通过SEM，XRD，BET和AAS测定它们的颗粒特性。锂过渡金属氧化物粉末的球形形态为1 -2μm，尺寸分布窄，化学成分均一。还通过可充电容量，循环性能，热稳定性和高速率充电来评估阴极的电化学性质。喷雾热解法得到的正极表现出LiMn_2O_4，LiNi_（0.5）Mn_（1.5）O_4，LiCo_（1/3）Ni，/ 3Mn_（1/3）O_2和LiFePO_4的放电容量分别为120、130、170和150mAh / g，并且在1℃的速率下稳定至500个循环。通过使用内燃型喷雾热解法进行锂过渡金属氧化物粉末的批量生产。通过内燃型喷雾热解获得的阴极的电化学性质与通过喷雾热解获得的那些具有可比性。

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  • 来源
    《Materials Science and Engineering》 |2009年第3期|109-114|共6页
  • 作者

    Takashi Ogihara; Takayuki Kodera; Kenichi Myoujin; Shigeru Motohira;

  • 作者单位

    Department of Fiber Amenity Engineering, University of Fukui, 3-9-1 Bunkyo, Fukui-shi. Fukui 910-8507, Japan;

    Department of Fiber Amenity Engineering, University of Fukui, 3-9-1 Bunkyo, Fukui-shi. Fukui 910-8507, Japan;

    Department of Fiber Amenity Engineering, University of Fukui, 3-9-1 Bunkyo, Fukui-shi. Fukui 910-8507, Japan;

    Department of Fiber Amenity Engineering, University of Fukui, 3-9-1 Bunkyo, Fukui-shi. Fukui 910-8507, Japan;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    lithium ion battery; oxide; aerosol; spray pyrolysis;

    机译：锂离子电池;氧化物气雾剂;喷雾热解;

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