Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Li Salt Anion Effect on O-2 Solubility in an Li-O-2 Battery
KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Kemiteknik, Tillämpad elektrokemi. (Tillämpad elektrokemi)ORCID-id: 0000-0001-7539-0304
KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Kemiteknik, Tillämpad elektrokemi. Univ Szeged, Dept Phys Chem & Mat Sci, H-6720 Szeged, Hungary.. (Tillämpad elektrokemi)
Chalmers Univ Technol, Dept Phys, SE-41296 Gothenburg, Sweden..
Chalmers Univ Technol, Dept Phys, SE-41296 Gothenburg, Sweden..
Vise andre og tillknytning
2018 (engelsk)Inngår i: The Journal of Physical Chemistry C, ISSN 1932-7447, E-ISSN 1932-7455, Vol. 122, nr 4, s. 1913-1920Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

For the promising Li-O-2 battery to be commercialized, further understanding of its constituents is needed. This study deals with the role of O-2 in Li-O-2 batteries, both its influence on electrochemical performance and its solubility in lithium-salt-containing dimethyl sulfoxide (DMSO) electrolytes. Experimentally, the electrochemical performance was evaluated using cylindrical ultramicroelectrodes. Two independent techniques, using a mass spectrometer and an optical sensor, were used to evaluate the O-2 solubility, expressed as Henry's constant. Furthermore, the ionic conductivity, dynamic viscosity, and density were also measured. Density functional theory calculations were made of the interaction energy between O-2 and the different species in the electrolytes. When varying O-2 partial pressure, the current was larger at high pressures confirming that the O-2 concentration is of key importance when studying the kinetics of this system. Compared with neat DMSO, the O-2 solubility increased with addition of LiTFSI and decreased with addition of LiClO4, indicating that the salt influences the solubility. This solubility trend is best explained in terms of apparent molar volume and interaction energy between O-2 and the salt anion. In conclusion, this study shows the importance of O-2 concentration, not just its partial pressure, and that the choice of Li salt can make this concentration increase or decrease.

sted, utgiver, år, opplag, sider
American Chemical Society (ACS), 2018. Vol. 122, nr 4, s. 1913-1920
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-225314DOI: 10.1021/acs.jpcc.7b09218ISI: 000424316200004Scopus ID: 2-s2.0-85041444544OAI: oai:DiVA.org:kth-225314DiVA, id: diva2:1195234
Merknad

QC 20180404

Tilgjengelig fra: 2018-04-04 Laget: 2018-04-04 Sist oppdatert: 2018-05-24bibliografisk kontrollert

Open Access i DiVA

Fulltekst mangler i DiVA

Andre lenker

Forlagets fulltekstScopus

Personposter BETA

Lindberg, JonasEndrodi, BalazsCornell, Ann M.Lindbergh, Göran

Søk i DiVA

Av forfatter/redaktør
Lindberg, JonasEndrodi, BalazsCornell, Ann M.Lindbergh, Göran
Av organisasjonen
I samme tidsskrift
The Journal of Physical Chemistry C

Søk utenfor DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 247 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf