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Kim, Youngsik
YK Research
Research Interests
  • Ionic conducting ceramic electrolyte membranes, energy conversion and storage materials and devices


Enhanced electrochemical properties of LiNi1/3Co1/3Mn1/3O2 cathode material by coating with LiAlO2 nanoparticles

DC Field Value Language Kim, Hyun-Soo ko Kim, Youngsik ko Kim, Seong-Il ko Martin, Steve W. ko 2014-10-06T08:19:50Z - 2014-10-06 ko 2006-10 -
dc.identifier.citation JOURNAL OF POWER SOURCES, v.161, no.1, pp.623 - 627 ko
dc.identifier.issn 0378-7753 ko
dc.identifier.uri -
dc.identifier.uri ko
dc.description.abstract Surface coating of LiNi1/3Co1/3Mn1/3O2 with LiAlO2 nanoparticles has been attempted to improve the electrochemical properties of these materials as cathodes in lithuim-ion batteries. The coating is undertaken by a sol-gel method that uses C9H21O3Al, LiOH·H2O and LiNi1/3Co1/3Mn1/3O2. X-ray diffraction analysis shows that the LiAlO2 is composed of both α- and β-LiAlO2 phases. The average size of the particles is about 15 nm. The structure of LiNi1/3Co1/3Mn1/3O2 is not affected by the LiAlO2 nanoparticle coating. A 3 wt.% LiAlO2-coating increases the specific discharge capacity, provides excellent cycling performance (i.e. 96.7% capacity retention after 50 cycles at the 1 C rate) and improves the rate capability. By contrast, heavier coatings (5 wt.%) on LiNi1/3Co1/3Mn1/3O2 dramatically decrease both the discharge capacity and the rate capability, but enhance the cycle life. ko
dc.description.statementofresponsibility close -
dc.language ENG ko
dc.publisher ELSEVIER SCIENCE BV ko
dc.subject Cycle life ko
dc.subject LiAlO2 nanoparticles ko
dc.subject Lithuim-ion battery ko
dc.subject Rate capability ko
dc.subject Sol-gel method ko
dc.subject Substituted lithuim cobalt oxide ko
dc.title Enhanced electrochemical properties of LiNi1/3Co1/3Mn1/3O2 cathode material by coating with LiAlO2 nanoparticles ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-33749144298 ko
dc.identifier.wosid 000241412000079 ko
dc.type.rims ART ko
dc.description.wostc 40 *
dc.description.scopustc 34 * 2015-05-06 * 2014-10-06 *
dc.identifier.doi 10.1016/j.jpowsour.2006.03.092 ko
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