Morphology control and electrochemical properties of nanosize LiFePO 4 cathode material synthesized by co-precipitation combined with in situ polymerization

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Show simple item record Wang, Y Sun, B Park, J Kim, W-S Kim, H-S Wang, G 2012-02-02T10:56:39Z 2011-01-21
dc.identifier.citation Journal of Alloys and Compounds, 2011, 509 (3), pp. 1040 - 1044
dc.identifier.issn 0925-8388
dc.identifier.other C1 en_US
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. © 2010 Elsevier B.V. All rights reserved.
dc.language eng
dc.relation.isbasedon 10.1016/j.jallcom.2010.08.161
dc.title Morphology control and electrochemical properties of nanosize LiFePO 4 cathode material synthesized by co-precipitation combined with in situ polymerization
dc.type Journal Article
dc.description.version Published
dc.parent Journal of Alloys and Compounds
dc.journal.volume 3
dc.journal.volume 509
dc.journal.number 3 en_US
dc.publocation Switzerland en_US
dc.identifier.startpage 1040 en_US
dc.identifier.endpage 1044 en_US SCI.Faculty of Science en_US
dc.conference Verified OK en_US
dc.for 0912 Materials Engineering
dc.personcode 109499
dc.personcode 112017
dc.personcode 115811
dc.percentage 100 en_US Materials Engineering en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US en_US
dc.location.activity en_US
dc.description.keywords Carbon layer
dc.description.keywords Co-precipitation
dc.description.keywords Electrochemical properties
dc.description.keywords LiFePO4
dc.description.keywords Polymerization
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Science
pubs.organisational-group /University of Technology Sydney/Strength - Materials and Technology for Energy Efficiency
utslib.copyright.status Closed Access 2015-04-15 12:17:09.805752+10
pubs.consider-herdc true
utslib.collection.history School of Chemistry and Forensic Science (ID: 339) [2015-05-09T06:16:40+10:00]
utslib.collection.history Closed (ID: 3)

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