| Naslov: | Polysulfides formation in different electrolytes from the perspective of X-ray absorption spectroscopy |
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| Avtorji: | ID Dominko, Robert (Avtor)
ID Vižintin, Alen (Avtor)
ID Aquilanti, Giuliana (Avtor)
ID Stievano, Lorenzo (Avtor)
ID Joseph Helen, Maria (Avtor)
ID Reddy Munnangi, Anji (Avtor)
ID Fichtner, Maximilian (Avtor)
ID Arčon, Iztok (Avtor) |
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| Datoteke: |
Gradivo nima datotek, ki so prostodostopne za javnost. Gradivo je morda fizično dosegljivo v knjižnici fakultete, zalogo lahko preverite v COBISS-u.  |
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| Jezik: | Angleški jezik |
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| Vrsta gradiva: | Delo ni kategorizirano |
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| Tipologija: | 1.01 - Izvirni znanstveni članek |
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| Organizacija: | UNG - Univerza v Novi Gorici
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| Opis: | Li-S batteries are promising energy storage technology for the future, however there two major problems remained which need to be
solved before successful commercialization. Capacity fading due to polysulfide shuttle and corrosion of lithium metal are directly
connected with the type and quantity of electrolyte used in the cells. Several recent works show dependence of the electrochemical
behavior of Li-S batteries on type of the electrolyte. In this work we compare and discuss a discharge mechanism of sulfur conversion
in three different electrolytes based on measurements with sulfur K-edge XAS. The sulfur conversion mechanism in the ether based
electrolytes, the most studied type of solvents in the Li-S batteries, which are enabling high solubility of polysulfides are compared
with the fluorinated ether based electrolytes with a reduced polysulfide solubility and in carbonate based electrolytes with the sulfur
confined into a ultramicroporous carbon. In all three cases the sulfur reduction proceeds through polysulfide intermediate phases
with a difference on the type polysulfides detected at different steps of discharge. |
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| Ključne besede: | Li-S batteries, operando sulphur K-edge XANES, EXAFS, Li-polysulphides |
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| Leto izida: | 2018 |
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| Št. strani: | str. A5014-A5019 |
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| Številčenje: | #Vol. #165, #no. #1 |
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| PID: | 20.500.12556/RUNG-4134 |
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| COBISS.SI-ID: | 6296602 |
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| ISSN pri članku: | 1945-7111 |
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| DOI: | 10.1149/2.0151801jes |
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| NUK URN: | URN:SI:UNG:REP:08GH8NRB |
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| Datum objave v RUNG: | 01.06.2018 |
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| Število ogledov: | 4298 |
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| Število prenosov: | 0 |
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| Metapodatki: |    |
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