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Cho, Jaephil
Nano Energy Storage Materials Lab (NESM)
Research Interests
  • Li-ion battery, metal-air battery, redox-flow battery, flexible battery .

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Improved thermal stability of LiCoO2 by nanoparticle AlPO4 coating with respect to spinel Li1.05Mn1.95O4

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Title
Improved thermal stability of LiCoO2 by nanoparticle AlPO4 coating with respect to spinel Li1.05Mn1.95O4
Author
Cho, Jaephil
Keywords
AlPO4 coating; overcharge; thermal stability; spinel
Issue Date
2003-02
Publisher
ELSEVIER SCIENCE INC
Citation
ELECTROCHEMISTRY COMMUNICATIONS, v.5, no.2, pp.146 - 148
Abstract
The thermal instability of the LiCoO2 cathode material was greatly improved by the nanoparticle AlPO4 coating. The AlPO4 coating appears to minimize the violent exothermic reaction of the cathode with the flammable electrolytes, resulting in excellent thermal stability even at the overcharged state. Moreover, the results of the overcharge and elevated temperature cycling tests show that, when compared with the spinel Li1.05Mn1.95O4, the AlPO4 nanoparticle coating results not only in enhanced thermal stability of the cathodes but also in reduced Co dissolution in the electrolytes.
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DOI
10.1016/S1388-2481(03)00008-0
ISSN
1388-2481
Appears in Collections:
ECHE_Journal Papers
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