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@ARTICLE{Bieker:851133,
author = {Bieker, Georg and Wellmann, Julia and Kolek, Martin and
Jalkanen, Kirsi and Winter, Martin and Bieker, Peter},
title = {{I}nfluence of cations in lithium and magnesium
polysulphide solutions: dependence of the solvent chemistry},
journal = {Physical chemistry, chemical physics},
volume = {19},
number = {18},
issn = {1463-9076},
address = {Cambridge},
publisher = {RSC Publ.},
reportid = {FZJ-2018-04835},
pages = {11152 - 11162},
year = {2017},
abstract = {In order to gain a deeper understanding of Li and Mg
polysulphides in Li/S and Mg/S batteries, respectively, this
work investigates the impact of the two different cations as
well as the influence of the electrolyte solvents' relative
dielectric permittivity and Gutmann's donor number on the
solubility and relative stability of different Li and Mg
polysulphide species. Therefore, the disproportionation and
dissociation equilibria of chemically prepared “Li2S8”
and “MgS8” solutions in DMSO, DMF, ACN, THF, DME,
TEGDME, and Pyr14TFSI are characterized by UV/Vis
spectroscopy. Varying the cation and the solvent reveals
their mutual interplay in stabilizing different polysulphide
species. To our knowledge, this is the first time that
chemically synthesized Mg polysulphides in solutions are
studied. The results of this work provide essential
knowledge for further development of the economically,
ecologically, and also in terms of energy density and
safety, attractive Mg/S batteries.},
cin = {IEK-12},
ddc = {540},
cid = {I:(DE-Juel1)IEK-12-20141217},
pnm = {131 - Electrochemical Storage (POF3-131)},
pid = {G:(DE-HGF)POF3-131},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:28425529},
UT = {WOS:000401022300019},
doi = {10.1039/C7CP01238A},
url = {https://juser.fz-juelich.de/record/851133},
}