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Naslov:Role of Cu current collector on electrochemical mechanism of Mg–S battery
Avtorji:ID Robba, Ana, KI (Avtor)
ID Mežnar, Maja, Uni-MB (Avtor)
ID Vižintin, Alen, KI (Avtor)
ID Bitenc, Jan, KI (Avtor)
ID Bobnar, Jernej, KI (Avtor)
ID Arčon, Iztok, UNG (Avtor)
ID Randon-Vitanova, Anna, Honda R&D Europe (Avtor)
ID Dominko, Robert, KI (Avtor)
Datoteke: Gradivo nima datotek, ki so prostodostopne za javnost. Gradivo je morda fizično dosegljivo v knjižnici fakultete, zalogo lahko preverite v COBISS-u. Povezava se odpre v novem oknu
Jezik:Angleški jezik
Vrsta gradiva:Delo ni kategorizirano
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:UNG - Univerza v Novi Gorici
Opis:Development of magnesium sulfur battery is accompanied with all known difficulties present in Li–S batteries, however with even more limited choice of electrolytes. In the present work, the influence of current collector on electrochemical mechanism was investigated in light of different reports where improved behavior was ascribed to electrolyte. Notable differences in cycling behavior are reported when Al current collector is replaced by Cu current collector independent of electrolyte. The initial reduction of sulfur follows similar reaction path no mater of current collector, but formation of MgS can be in competition with formation of CuS in the presence of Cu cations. With the subsequent cycling cells prepared from cathodes deposited on Cu current collector show decrease in the voltage and formation of single plateau during cycling. The change corresponds to the involvement of Cu into the reaction and formation of redox couple Mg/CuS as determined by Cu K-edge XANES measurements. Corrosion of Cu foil is identified by SEM and serves as a source of Cu cations for the chemical reaction between Cu and polysulfides. Mg/CuS redox couple shows improved cycling stability, but theoretical energy density is severely reduced due to substitution of S with CuS as cathode active material.
Ključne besede:Magnesium Sulfur Rechargeable batteries Current collector Copper Corrosion
Verzija publikacije:Objavljena publikacija
Leto izida:2020
Št. strani:7
Številčenje:1
PID:20.500.12556/RUNG-5245 Novo okno
COBISS.SI-ID:6773274 Novo okno
DOI:10.1016/j.jpowsour.2019.227672 Novo okno
NUK URN:URN:SI:UNG:REP:5B1VB3LB
Datum objave v RUNG:16.01.2020
Število ogledov:3110
Število prenosov:0
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Gradivo je del revije

Naslov:Journal of power sources
Leto izida:2020

Licence

Licenca:CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
Opis:Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.
Začetek licenciranja:15.01.2020

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