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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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Stabilization of spinel-like phase transformation of o-LiMnO2 during 55 degrees C cycling by sol-gel coating of CoO

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dc.contributor.author Cho, Jaephil ko
dc.date.available 2014-11-21T00:12:59Z -
dc.date.created 2014-11-18 ko
dc.date.issued 2001-12 -
dc.identifier.citation CHEMISTRY OF MATERIALS, v.13, no.12, pp.4537 - 4541 ko
dc.identifier.issn 0897-4756 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/9107 -
dc.identifier.uri http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=0035673298 ko
dc.description.abstract Low-temperature sol-gel coating of CoO on orthorhombic LiMnO2 (o-LiMnO2) particles greatly stabilizes spinel-like phase transformation during electrochemical cycling at 55 degreesC. Enhanced structural stability of the coated o-LiMnO2 is because discretely higher Co concentration at the surface than in the bulk improves the structural stability of cycling-induced LiMn2O4 and Li2Mn2O4 phases. The coated o-LiMnO2 shows increased discharge capacity to 185 from 170 mAh/g at 0.2 C rate (=36 mA/g) cycled between 4.5 and 2 V. In addition, the coated o-LiMnO2 exhibits smaller capacity fading than the bare one (35%), showing only 12% capacity loss of the discharge capacity after 50 cycles. ko
dc.description.statementofresponsibility close -
dc.language ENG ko
dc.publisher AMER CHEMICAL SOC ko
dc.subject ORTHORHOMBIC LIMNO2 ko
dc.subject LITHIUM BATTERIES ko
dc.subject CAPACITY ko
dc.subject LIMN2O4 ko
dc.subject CATHODE ko
dc.subject ELECTRODES ko
dc.subject CELLS ko
dc.title Stabilization of spinel-like phase transformation of o-LiMnO2 during 55 degrees C cycling by sol-gel coating of CoO ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-0035673298 ko
dc.identifier.wosid 000172889300023 ko
dc.type.rims ART ko
dc.description.wostc 28 *
dc.description.scopustc 25 *
dc.date.tcdate 2015-05-06 *
dc.date.scptcdate 2014-11-18 *
dc.identifier.doi 10.1021/cm0101935 ko
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