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dc.contributor.author선양국-
dc.date.accessioned2018-03-15T05:54:35Z-
dc.date.available2018-03-15T05:54:35Z-
dc.date.issued2014-08-
dc.identifier.citationNANO LETTERS, 2014, 14(8), p.4873-4880en_US
dc.identifier.issn1530-6984-
dc.identifier.issn1530-6992-
dc.identifier.urihttps://pubs.acs.org/doi/10.1021/nl5022859-
dc.identifier.urihttp://hdl.handle.net/20.500.11754/47157-
dc.description.abstractCathode materials with high energy density for lithium-ion batteries are highly desired in emerging applications in automobiles and stationary energy storage for the grid. Lithium transition metal oxide with concentration gradient of metal elements inside single particles was investigated as a promising high-energy-density cathode material. Electrochemical characterization demonstrated that a full cell with this cathode can be continuously operated for 2500 cycles with a capacity retention of 83.3%. Electron microscopy and high-resolution X-ray diffraction were employed to investigate the structural change of the cathode material after this extensive electrochemical testing. It was found that microstrain developed during the continuous charge/discharge cycling, resulting in cracking of nanoplates. This finding suggests that the performance of the cathode material can be further improved by optimizing the concentration gradient to minimize the microstrain and to reduce the lattice mismatch during cycling.en_US
dc.description.sponsorshipResearch at Hangyang University was supported by the Human Resources Development Program (No. 20124010203310) of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Trade, Industry, and Energy and also by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST; No. 2009-0092780). Support from David Howell (Team Lead), Tien Duong, and Peter Faguy of the Vehicle Technologies Program, Hybrid and Electric Systems, at the U. S. Department of Energy, Office of Energy Efficiency and Renewable Energy, is gratefully acknowledged. The authors acknowledge the use of the Advanced Photon Source (APS) of Argonne National Laboratory, which is supported by the U. S. Department of Energy, Office of Science, Office of Basic Energy Science.en_US
dc.language.isoenen_US
dc.publisherAMER CHEMICAL SOCen_US
dc.subjectCoprecipitationen_US
dc.subjectMicro-Strainen_US
dc.subjectNi Richen_US
dc.subjectCathodeen_US
dc.subjectLithiumen_US
dc.subjectBatteryen_US
dc.titleDevelopment of Microstrain in Aged Lithium Transition Metal Oxidesen_US
dc.typeArticleen_US
dc.relation.volume14-
dc.identifier.doi10.1021/nl5022859-
dc.relation.page4873-4880-
dc.relation.journalNANO LETTERS-
dc.contributor.googleauthorLee, Eung-Ju-
dc.contributor.googleauthorChen, Zonghai-
dc.contributor.googleauthorNoh, Hyung-Ju-
dc.contributor.googleauthorNam, Sang Cheol-
dc.contributor.googleauthorKang, Sung-
dc.contributor.googleauthorKim, Do Hyeong-
dc.contributor.googleauthorAmine, Khalil-
dc.contributor.googleauthorSun, Yang-Kook-
dc.relation.code2014036375-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDEPARTMENT OF ENERGY ENGINEERING-
dc.identifier.pidyksun-
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COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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