Correlation between AlPO4 nanoparticle coating thickness on LiCoO2 cathode and thermal stability
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- Correlation between AlPO4 nanoparticle coating thickness on LiCoO2 cathode and thermal stability
- Cho, Jaephil
- coating thickness; overcharge; thermal stability; LiCoO2
- Issue Date
- PERGAMON-ELSEVIER SCIENCE LTD
- ELECTROCHIMICA ACTA, v.48, no.19, pp.2807 - 2811
- The thickness of an AlPO4 coating significantly affects the thermal stability of a LiCOO2 cathode. Increasing the coating thickness leads to not only a decrease in the exothermic reaction between the cathode and the electrolyte but also to an improvement in the cycling performance. A 1 C rate overcharge experiment up to 12 V is a good example of the thermal stability of the cathode in the Li-ion cell. Further-more, increasing the AIPO(4) Coating thickness results in the lowest cell surface temperature, which is indicative of the degree of heat generation.
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