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@ARTICLE{Grnebaum:903610,
author = {Grünebaum, Mariano and Buchheit, Annika and Lürenbaum,
Constantin and Winter, Martin and Wiemhöfer, Hans-Dieter},
title = {{A} {S}eries of {P}olyhydric {E}sters {A}s {N}ovel
{C}andidates for {B}attery {S}olvents in {L}ithium {M}etal
{C}ells: {E}lectrochemical {I}nvestigations and {I}nfluences
of {M}oisture and {A}lcohol {R}esidues in {C}ontact with
{L}ithium {M}etal},
journal = {Meeting abstracts},
volume = {},
issn = {1091-8213},
address = {Pennington, NJ},
publisher = {Soc.},
reportid = {FZJ-2021-05264},
pages = {MA2019-04 158},
year = {2019},
abstract = {In recent years, the lithium metal anode has aroused great
interest, not at least through the development of the
lithium//sulfur and the lithium//air battery technologies,
in all-solid-state batteries. However, the application of
lithium metal anodes is limited by safety issues and several
failure mechanisms, including, dendrite growth and direct
chemical reactions with electrolyte components like battery
solvents, which leads to fast capacity losses.In this
context, a new series of polyhydric propyl-based esters were
investigated, namely n-propyl acetate, isopropyl acetate
(monohydric esters), trimethylene diacetate, 1,2-propylene
glycol diacetate (dihydric esters) and triacetin (trihydric
ester) as attractive and environmental friendly candidates
for electrolyte solvents in lithium metal battery
applications.The above mentioned organic esters were
examined in respect to their reactivity in contact with
lithium metal, influenced by water or alcohol impurities.
The resulting reaction products were analyzed and determined
via 1H-NMR spectroscopy. Additional experiments were
performed and the resulting products compared to anticipated
reaction products which were prepared separately, to
evidence possible reaction mechanisms like the occurrence of
a CLAISEN-condensation.Furthermore, the here mentioned
propyl-based esters and the reaction products were analyzed
by cyclic voltammetry against copper, platinum and aluminum
as working electrode to evaluate the anodic and cathodic
stability, as well as possible anodic dissolution reactions
in the presence of LiTFSI as conducting salt.In both cases,
the reactivity in contact with lithium metal and the anodic
dissolution of aluminum, a reactivity could be observed
whereupon the trihydric esters were least reactive followed
by the dihydric and monohydric esters.In absence of water
and alcohols all investigated esters show no detectable
reaction with lithium metal.},
cin = {IEK-12},
ddc = {540},
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},
doi = {10.1149/MA2019-04/3/158},
url = {https://juser.fz-juelich.de/record/903610},
}