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dc.contributor.author
Wang, Shutao
dc.contributor.author
Kovalenko, Maksym V.
dc.contributor.author
Kravchyk, Kostiantyn V.
dc.date.accessioned
2021-06-17T05:57:26Z
dc.date.available
2021-02-16T03:56:46Z
dc.date.available
2021-02-16T12:36:12Z
dc.date.available
2021-02-16T13:40:45Z
dc.date.available
2021-06-17T05:57:26Z
dc.date.issued
2021-06
dc.identifier.issn
2566-6223
dc.identifier.other
10.1002/batt.202000289
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/469610
dc.identifier.doi
10.3929/ethz-b-000469610
dc.description.abstract
Al–graphite dual‐ion batteries (AGDIBs) represent a compelling battery concept for large‐scale stationary storage of electricity in view of their safety, low cost, long cycling life, and high energy efficiency (80–90 %). However, at present, the deployment of AGDIBs is intrinsically limited by their low cell‐level energy density as a result of the non‐rocking‐chair operation principle and, consequently, the need for large quantities of acidic chloroaluminate ionic liquid (IL) anolytes as a reservoir of Al2Cl7− ions required for AGDIB operation. Thus far, AGDIBs have commonly employed IL anolytes with moderate acidity (AlCl3/Lewis base molar ratio of 1.3), which corresponds to charge‐storage anolyte capacity of ca. 19 mAh g−1, eventually resulting in low cell‐level energy densities of 20–30 Wh kg−1. In this work, we present an AGDIB utilizing an AlCl3‐saturated IL anolyte, containing an excess of AlCl3 powder for maintaining constant acidity during operation, leading to a theoretical capacity of 52 mAh g−1. The resultant AGDIB possesses an energy density of 59.1 Wh kg−1, along with a high energy efficiency of 85 % and an average discharge voltage of 1.71 V.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Wiley
en_US
dc.rights.uri
http://creativecommons.org/licenses/by-nc/4.0/
dc.subject
graphite
en_US
dc.subject
aluminum
en_US
dc.subject
dual-ion battery
en_US
dc.subject
ionic liquid
en_US
dc.subject
energy density
en_US
dc.title
AlCl3‐Saturated Ionic Liquid Anolyte with an Excess of AlCl3 for Al–Graphite Dual‐Ion Batteries
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution-NonCommercial 4.0 International
dc.date.published
2021-01-05
ethz.journal.title
Batteries and Supercaps
ethz.journal.volume
4
en_US
ethz.journal.issue
6
en_US
ethz.pages.start
929
en_US
ethz.pages.end
933
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Weinheim
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02020 - Dep. Chemie und Angewandte Biowiss. / Dep. of Chemistry and Applied Biosc.::02513 - Laboratorium für Anorganische Chemie / Laboratory of Inorganic Chemistry::03934 - Kovalenko, Maksym / Kovalenko, Maksym
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02020 - Dep. Chemie und Angewandte Biowiss. / Dep. of Chemistry and Applied Biosc.::02513 - Laboratorium für Anorganische Chemie / Laboratory of Inorganic Chemistry::03934 - Kovalenko, Maksym / Kovalenko, Maksym
ethz.date.deposited
2021-02-16T03:57:03Z
ethz.source
WOS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2021-06-17T05:57:33Z
ethz.rosetta.lastUpdated
2024-02-02T14:08:00Z
ethz.rosetta.versionExported
true
ethz.COinS
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