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@ARTICLE{Wagemaker:20185,
author = {Wagemaker, M. and Singh, D.P. and Borghols, W.J.H. and
Lafont, U. and Haverkate, L. and Peterson, V.K. and Mulder,
F.M.},
title = {{D}ynamic {S}olubility {L}imits in {N}anosized {O}livine
{L}i{F}e{PO}(4)},
journal = {Journal of the American Chemical Society},
volume = {133},
issn = {0002-7863},
address = {Washington, DC},
publisher = {American Chemical Society},
reportid = {PreJuSER-20185},
pages = {10222 - 10228},
year = {2011},
note = {This work is a contribution from the Delft Energy
Initiative (DEI). Financial support from Shell is
acknowledged for the Sustainable Mobility grant funding
D.P.S. The Netherlands Organization for Scientific Research
(NWO) is acknowledged for both beam time at ISIS and the
CW-VIDI grant of M.W. The authors thank Ron Smith for
assistance with the neutron diffraction experiments at
POLARIS (ISIS), Michela Brunelli and Mark Johnson at D20
(ILL), and Vladimir Pomjakushin at HRPT (PSI). We thank the
Alistore network for providing access to the TEM
measurements.},
abstract = {Because of its stability, nanosized olivine LiFePO(4) opens
the door toward high-power Li-ion battery technology for
large-scale applications as required for plug-in hybrid
vehicles. Here, we reveal that the thermodynamics of
first-order phase transitions in nanoinsertion materials is
distinctly different from bulk materials as demonstrated by
the decreasing miscibility gap that appears to be strongly
dependent on the overall composition in LiFePO(4). In
contrast to our common thermodynamic knowledge, that
dictates solubility limits to be independent of the overall
composition, combined neutron and X-ray diffraction reveals
strongly varying solubility limits below particle sizes of
35 nm. A rationale is found based on modeling of the diffuse
interface. Size confinement of the lithium concentration
gradient, which exists at the phase boundary, competes with
the in bulk energetically favorable compositions.
Consequently, temperature and size diagrams of nanomaterials
require complete reconsideration, being strongly dependent
on the overall composition. This is vital knowledge for the
future nanoarchitecturing of superior energy storage devices
as the performance will heavily depend on the disclosed
nanoionic properties.},
keywords = {J (WoSType)},
cin = {PGI-4 / JCNS (München) ; Jülich Centre for Neutron
Science JCNS (München) ; JCNS-FRM-II / JCNS-2},
ddc = {540},
cid = {I:(DE-Juel1)PGI-4-20110106 /
I:(DE-Juel1)JCNS-FRM-II-20110218 /
I:(DE-Juel1)JCNS-2-20110106},
pnm = {Grundlagen für zukünftige Informationstechnologien /
Großgeräte für die Forschung mit Photonen, Neutronen und
Ionen (PNI)},
pid = {G:(DE-Juel1)FUEK412 / G:(DE-Juel1)FUEK415},
experiment = {EXP:(DE-MLZ)External-20140101},
shelfmark = {Chemistry, Multidisciplinary},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:21598941},
UT = {WOS:000292715600050},
doi = {10.1021/ja2026213},
url = {https://juser.fz-juelich.de/record/20185},
}