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@ARTICLE{Huang:905999,
author = {Huang, Zhuojun and Choudhury, Snehashis and Paul, Neelima
and Thienenkamp, Johannes Helmut and Lennartz, Peter and
Gong, Huaxin and Müller-Buschbaum, Peter and Brunklaus,
Gunther and Gilles, Ralph and Bao, Zhenan},
title = {{E}ffects of {P}olymer {C}oating {M}echanics at
{S}olid‐{E}lectrolyte {I}nterphase for {S}tabilizing
{L}ithium {M}etal {A}nodes},
journal = {Advanced energy materials},
volume = {12},
number = {5},
issn = {1614-6832},
address = {Weinheim},
publisher = {Wiley-VCH},
reportid = {FZJ-2022-01172},
pages = {2103187 -},
year = {2022},
abstract = {Lithium metal batteries are next-generation energy storage
devices that rely on the stable electrodeposition of lithium
metal during the charging process. The major challenge
associated with this battery chemistry is related to the
uneven deposition that leads to dendritic growth and poor
coulombic efficiency (CE). A promising strategy for
addressing this challenge is utilizing a polymer coating on
the anodic surface. While several works in the past have
evaluated polymer coatings, the requirements for polymer
design are still unclear. In this work, the effect of
polymer dynamics on lithium metal deposition is specifically
investigated. Electrolyte (solvent) blocking
perfluoropolyether polymer networks with evenly spaced
H-bonding sites of various strengths are designed, resulting
in significant differences in the molecular ordering, as
analyzed by X-ray scattering measurements. The differences
in the H-bonding strength directly impact the mechanical
properties of these materials, thus providing a controlled
set of samples with a range of polymer dynamics for
electrodeposition studies. Finally, a systematic evaluation
of the lithium metal electrodeposition quality with these
polymers as anodic coating shows that polymers with
flowability or faster polymer dynamics exhibit higher CE.
These experimental findings provide rational design
principles for soft polymer coatings on lithium metal
anodes.},
cin = {IEK-12},
ddc = {050},
cid = {I:(DE-Juel1)IEK-12-20141217},
pnm = {1221 - Fundamentals and Materials (POF4-122) / 1222 -
Components and Cells (POF4-122) / 1223 - Batteries in
Application (POF4-122)},
pid = {G:(DE-HGF)POF4-1221 / G:(DE-HGF)POF4-1222 /
G:(DE-HGF)POF4-1223},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000732690000001},
doi = {10.1002/aenm.202103187},
url = {https://juser.fz-juelich.de/record/905999},
}