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dc.contributor.author
Zhang, Yong
dc.contributor.author
Wan, Gang
dc.contributor.author
Lewis, Nicholas H.C.
dc.contributor.author
Mars, Julian
dc.contributor.author
Bone, Sharon E.
dc.contributor.author
Steinrück, Hans-Georg
dc.contributor.author
Lukatskaya, Maria R.
dc.contributor.author
Weadock, Nicholas J.
dc.contributor.author
Bajdich, Michal
dc.contributor.author
Borodin, Oleg
dc.contributor.author
Tokmakoff, Andrei
dc.contributor.author
Toney, Michael F.
dc.contributor.author
Maginn, Edward J.
dc.date.accessioned
2021-11-08T09:10:27Z
dc.date.available
2021-11-05T08:14:34Z
dc.date.available
2021-11-08T09:10:27Z
dc.date.issued
2021-10-08
dc.identifier.issn
2380-8195
dc.identifier.other
10.1021/acsenergylett.1c01624
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/513773
dc.description.abstract
Applications of aqueous zinc batteries for grid-scale energy storage are limited by their poor reversibility and the competing water splitting reaction. The recent invention of a water-in-salt (WIS) electrolyte concept provides a new route enabling a stable and highly reversible aqueous zinc battery chemistry. In the present work, a mixed zinc bis(trifluoromethane sulfonyl)imide (Zn(TFSI)2) and LiTFSI WIS electrolyte was studied using X-ray total scattering, X-ray absorption, and Fourier transform infrared spectroscopy in conjunction with classical molecular dynamics simulations. It was found that, in the highly concentrated WIS electrolyte consisting of 1 m Zn(TFSI)2 and 20 m LiTFSI, Zn2+ cations are mainly solvated by six waters in their first solvation shell, while the TFSI- anions are completely excluded. This ion solvation picture is fundamentally different from the previous understandings. The results suggest that additional studies are needed to fully understand the unusual stability and reversibility of zinc-WIS electrolyte-based batteries.
en_US
dc.language.iso
en
en_US
dc.publisher
American Chemical Society
en_US
dc.title
Water or Anion? Uncovering the Zn2+ Solvation Environment in Mixed Zn(TFSI)2 and LiTFSI Water-in-Salt Electrolytes
en_US
dc.type
Journal Article
dc.date.published
2021-09-08
ethz.journal.title
ACS Energy Letters
ethz.journal.volume
6
en_US
ethz.journal.issue
10
en_US
ethz.journal.abbreviated
ACS Energy Lett.
ethz.pages.start
3458
en_US
ethz.pages.end
3463
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Washington, DC
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02130 - Dep. Maschinenbau und Verfahrenstechnik / Dep. of Mechanical and Process Eng.::02668 - Inst. f. Energie- und Verfahrenstechnik / Inst. Energy and Process Engineering::09692 - Lukatskaya, Maria / Lukatskaya, Maria
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02130 - Dep. Maschinenbau und Verfahrenstechnik / Dep. of Mechanical and Process Eng.::02668 - Inst. f. Energie- und Verfahrenstechnik / Inst. Energy and Process Engineering::09692 - Lukatskaya, Maria / Lukatskaya, Maria
ethz.date.deposited
2021-11-05T08:14:41Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2021-11-08T09:10:34Z
ethz.rosetta.lastUpdated
2022-03-29T15:53:30Z
ethz.rosetta.versionExported
true
ethz.COinS
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