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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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Correlation of capacity fading of LiMn2O4 cathode material on 55 degrees C cycling with their surface area measured by a methylene blue adsorption

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Title
Correlation of capacity fading of LiMn2O4 cathode material on 55 degrees C cycling with their surface area measured by a methylene blue adsorption
Author
Cho, Jaephil
Keywords
LiMn2O4; MB adsorption; capacity fading; irreversible capacity; particle size
Issue Date
200101
Publisher
ELSEVIER SCIENCE BV
Citation
SOLID STATE IONICS, v.138, no.3-4, pp.267 - 271
Abstract
LiMn2O4 cathode materials, having various particle sizes and using different preparation techniques, have been prepared. Surface areas of these materials measured by two alternative methods of Brunauer, Emmett, and Teller (BET) and methylene blue (MB) adsorption methods did not agree with each other in both absolute and relative values. The electrochemical performance such as capacity fading on 55°C cycling and irreversible capacity correlate well with the surface area measured by the MB method but not with that by the BET method. The electrochemical performance improved as the surface area (by MB) decreased.
URI
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DOI
http://dx.doi.org/10.1016/S0167-2738(00)00787-6
ISSN
0167-2738
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