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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 .


VO(x)-coated LiMn(2)O(4) nanorod clusters for lithium battery cathode materials

DC Field Value Language Cho, Jaephil ko 2014-05-19T06:17:26Z - 2014-05-19 ko 2008 ko
dc.identifier.citation JOURNAL OF MATERIALS CHEMISTRY, v.18, no.19, pp.2257 - 2261 ko
dc.identifier.issn 0959-9428 ko
dc.identifier.uri -
dc.identifier.uri ko
dc.description.abstract VOx-coated LiMn2O4 spinel nanorod clusters as a lithium battery cathode material are prepared by mixing OV(CH 3H7)3 dissolved in ethanol and LiMn 2O4 powder consisting of nanorod clusters and firing this mixture at 700 °C. In the coated spinel, the V atoms are distributed within ∼30 nm of the particle surface without showing any coating layer, indicating the possible formation of a solid solution (LiMn2-xV xO4). The coated nanorod clusters exhibit a comparable rate capability to an uncoated counterpart, showing a discharge capacity of 117 mAh g-1 at a rate of 7 C (= 1400 mA g-1), which corresponds to 89% of the capacity retention ratio at room temperature. Further, the coated cathode exhibits excellent structural stability in storage at 80 °C for 24h; a significantly decreased amount of Mn dissolution (60 ppm) is observed, in contrast to that of an uncoated counterpart (5000 ppm). ko
dc.description.statementofresponsibility close -
dc.language ENG ko
dc.publisher ROYAL SOC CHEMISTRY ko
dc.subject Cathodes ko
dc.subject Coated materials ko
dc.subject Lithium batteries ko
dc.subject Solid solutions ko
dc.subject Vanadium compounds ko
dc.title VO(x)-coated LiMn(2)O(4) nanorod clusters for lithium battery cathode materials ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-43449089794 ko
dc.identifier.wosid 000255450900013 ko
dc.type.rims ART ko
dc.description.wostc 38 *
dc.description.scopustc 37 * 2014-10-18 * 2014-07-12 *
dc.identifier.doi 10.1039/b719177d ko
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