Morphology control and electrochemical properties of nanosize LiFePO4 cathode material synthesized by co-precipitation combined with in situ polymerization

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dc.contributor.author Wang, Ying en_US
dc.contributor.author Sun, Bing en_US
dc.contributor.author Park, Jinsoo en_US
dc.contributor.author Kim, Woo-Seong en_US
dc.contributor.author Kim, Hyun-Soo en_US
dc.contributor.author Wang, Guoxiu en_US
dc.contributor.editor en_US
dc.date.accessioned 2012-02-02T10:56:39Z
dc.date.available 2012-02-02T10:56:39Z
dc.date.issued 2011 en_US
dc.identifier 2010000539 en_US
dc.identifier.citation Wang Ying et al. 2011, 'Morphology control and electrochemical properties of nanosize LiFePO4 cathode material synthesized by co-precipitation combined with in situ polymerization', Elsevier, vol. 509, no. 3, pp. 1040-1044. en_US
dc.identifier.issn 0925-8388 en_US
dc.identifier.other C1 en_US
dc.identifier.uri http://hdl.handle.net/10453/15347
dc.description.abstract Nanosize carbon coated LiFePO4 cathode material was synthesized by in situ polymerization. The as-prepared LiFePO4 cathode material was systematically characterized by X-ray diffraction, thermogravimetric-differential scanning calorimetry, X-ray photo-electron spectroscopy, field-emission scanning electron microscopy, and transmission electron microscopy techniques. Field-emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) images revealed that the morphology of the LiFePO4 consists of primary particles (40-50 nm) and agglomerated secondary particles (100-110 nm). Each particle is evenly coated with an amorphous carbon layer, which has a thickness around 3-5 nm. The electrochemical properties were examined by cyclic voltammetry and charge-discharge testing. The as-prepared LiFePO4 can deliver an initial discharge capacity of 145 mAh/g, 150 mAh/g, and 134 mAh/g at 0.2 C, 1 C, and 2 C rates, respectively, and exhibits excellent cycling stability. At a higher C-rate (5 C) a slight capacity loss could be found. However after being charge-discharge at lower C-rates, LiFePO4 can be regenerated and deliver the discharge capacity of 145 mAh/g at 0.2 C. (C) 2010 Elsevier B.V. All rights reserved. en_US
dc.language en_US
dc.publisher Elsevier en_US
dc.relation.isbasedon http://dx.doi.org/10.1016/j.jallcom.2010.08.161 en_US
dc.title Morphology control and electrochemical properties of nanosize LiFePO4 cathode material synthesized by co-precipitation combined with in situ polymerization en_US
dc.parent Journal Of Alloys And Compounds en_US
dc.journal.volume 509 en_US
dc.journal.number 3 en_US
dc.publocation Switzerland en_US
dc.identifier.startpage 1040 en_US
dc.identifier.endpage 1044 en_US
dc.cauo.name SCI.Faculty of Science en_US
dc.conference Verified OK en_US
dc.for 091200 en_US
dc.personcode 112017 en_US
dc.personcode 115811 en_US
dc.personcode 0000062778 en_US
dc.personcode 0000071650 en_US
dc.personcode 0000071648 en_US
dc.personcode 109499 en_US
dc.percentage 100 en_US
dc.classification.name Materials Engineering en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity en_US
dc.description.keywords Co-precipitation; Polymerization; Carbon layer; LiFePO4; Electrochemical properties en_US
dc.staffid 109499 en_US


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