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@ARTICLE{EilersRethwisch:865961,
author = {Eilers-Rethwisch, M. and Hildebrand, S. and Evertz, M. and
Ibing, L. and Dagger, T. and Winter, M. and Schappacher, F.
M.},
title = {{C}omparative study of {S}n-doped
{L}i[{N}i0.6{M}n0.2{C}o0.2-{S}n ]{O}2 cathode active
materials (x = 0-0.5) for lithium ion batteries regarding
electrochemical performance and structural stability},
journal = {Journal of power sources},
volume = {397},
issn = {0378-7753},
address = {New York, NY [u.a.]},
publisher = {Elsevier},
reportid = {FZJ-2019-05227},
pages = {68 - 78},
year = {2018},
abstract = {Layered Ni-rich Li[Ni0.6Mn0.2Co0.2-xSnx]O2 cathode active
materials with x = 0–0.05 are synthesized via a
co-precipitation synthesis route and the effect of doping
content on the structural behavior and electrochemical
performance are investigated. All synthesized materials show
a well-defined layered structure of the hexagonal α-NaFeO2
phase (space group Rm) analyzed by X-ray diffraction (XRD).
Electrochemical Li-metal/cathode cell studies exhibit that a
Sn-content of $1\%–2\%$ is beneficial regarding specific
discharge capacity and cycle life $(≥20\%).$ Detailed
electrochemical investigations of Li-metal and lithium ion
cells with cathodes consisting of LiNi0.6Mn0.2Co0.2O2 and
LiNi0.6Mn0.2Co0.18Sn0.02O2 are conducted. Post mortem
analyses by means of ICP-OES and TXRF show beneficial
effects of the Sn-doping with regard to a lower transition
metal dissolution and a higher available Li content in the
cathode active material. The thermal analyses (TGA, DSC,
ARC) show a stabilizing effect of Sn-doping, which results
from a lower mass loss and less heat evolution of the
charged cathode active materials at elevated temperatures.},
cin = {IEK-12},
ddc = {620},
cid = {I:(DE-Juel1)IEK-12-20141217},
pnm = {131 - Electrochemical Storage (POF3-131)},
pid = {G:(DE-HGF)POF3-131},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000445317900010},
doi = {10.1016/j.jpowsour.2018.06.072},
url = {https://juser.fz-juelich.de/record/865961},
}