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@ARTICLE{Reissig:1024886,
author = {Reissig, Friederike and Ramirez-Rico, Joaquin and Placke,
Tobias Johannes and Winter, Martin and Schmuch, Richard and
Gomez-Martin, Aurora},
title = {{T}he {R}ole of {P}rotective {S}urface {C}oatings on the
{T}hermal {S}tability of {D}elithiated {N}i-{R}ich {L}ayered
{O}xide {C}athode {M}aterials},
journal = {Batteries},
volume = {9},
number = {5},
issn = {2313-0105},
address = {Basel},
publisher = {MDPI},
reportid = {FZJ-2024-02537},
pages = {245 -},
year = {2023},
abstract = {To achieve a broader public acceptance for electric
vehicles based on lithium-ion battery (LIB) technology, long
driving ranges, low cost, and high safety are needed. A
promising pathway to address these key parameters lies in
the further improvement of Ni-rich cathode materials for LIB
cells. Despite the higher achieved capacities and thus
energy densities, there are major drawbacks in terms of
capacity retention and thermal stability (of the charged
cathode) which are crucial for customer acceptance and can
be mitigated by protecting cathode particles. We studied the
impact of surface modifications on cycle life and thermal
stability of LiNi0.90Co0.05Mn0.05O2 layered oxide cathodes
with WO3 by a simple sol–gel coating process. Several
advanced analytical techniques such as low-energy ion
scattering, differential scanning calorimetry, and
high-temperature synchrotron X-ray powder diffraction of
delithiated cathode materials, as well as charge/discharge
cycling give significant insights into the impact of surface
coverage of the coatings on mitigating degradation
mechanisms. The results show that successful surface
modifications of WO3 with a surface coverage of only $20\%$
can prolong the cycle life of an LIB cell and play a crucial
role in improving the thermal stability and, hence, the
safety of LIBs.},
cin = {IEK-12},
ddc = {530},
cid = {I:(DE-Juel1)IEK-12-20141217},
pnm = {1221 - Fundamentals and Materials (POF4-122)},
pid = {G:(DE-HGF)POF4-1221},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000995544700001},
doi = {10.3390/batteries9050245},
url = {https://juser.fz-juelich.de/record/1024886},
}