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@ARTICLE{Szczuka:890762,
author = {Szczuka, Conrad and Ackermann, Jörg and Schleker, Peter
Philipp Maria and Jakes, Peter and Eichel, Rüdiger-A. and
Granwehr, Josef},
title = {{T}ransient morphology of lithium anodes in batteries
monitored by in operando pulse electron paramagnetic
resonance},
journal = {Communications materials},
volume = {2},
number = {1},
issn = {2662-4443},
address = {London},
publisher = {Springer Nature},
reportid = {FZJ-2021-01179},
pages = {20},
year = {2021},
abstract = {Enhancing lithium-ion battery technology in terms of
specific capacity and charging time is key for the
advancement of the electrification of transportation.
Particularly for fast charging, inhomogeneous deposition of
metallic lithium, for example on commercial graphite or
metallic lithium anodes, leads to cell degradation and
safety issues. To understand the underlying mechanisms and
develop counter-measures, non-invasive online detection
techniques providing satisfactory time resolution are
crucial. Here, we demonstrate in operando pulse electron
paramagnetic resonance to observe transient processes during
pulsed fast charging in cells with metallic lithium anodes.
Sampling timescales of 100 ms enable real-time monitoring
of the formation and evolution of porous lithium during and
after charging pulses. It was observed that the generated
morphology continued to evolve after the end of a charging
pulse, whereby surface features were fusing with a time
constant that was slower than their formation.},
cin = {IEK-9},
ddc = {600},
cid = {I:(DE-Juel1)IEK-9-20110218},
pnm = {122 - Elektrochemische Energiespeicherung (POF4-122) /
HITEC - Helmholtz Interdisciplinary Doctoral Training in
Energy and Climate Research (HITEC) (HITEC-20170406)},
pid = {G:(DE-HGF)POF4-122 / G:(DE-Juel1)HITEC-20170406},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000623915300001},
doi = {10.1038/s43246-021-00126-1},
url = {https://juser.fz-juelich.de/record/890762},
}