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dc.contributor.author
Kravchyk, Kostiantyn V.
dc.contributor.author
Widmer, Roland
dc.contributor.author
Erni, Rolf
dc.contributor.author
Dubey, Romain J.-C.
dc.contributor.author
Krumeich, Frank
dc.contributor.author
Kovalenko, Maksym V.
dc.contributor.author
Bodnarchuk, Maryna I.
dc.date.accessioned
2019-06-17T14:21:35Z
dc.date.available
2019-06-16T17:57:35Z
dc.date.available
2019-06-17T14:21:35Z
dc.date.issued
2019
dc.identifier.issn
2045-2322
dc.identifier.other
10.1038/s41598-019-43639-z
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/347619
dc.identifier.doi
10.3929/ethz-b-000347619
dc.description.abstract
Rechargeable magnesium batteries are appealing as safe, low-cost systems with high-energy-density storage that employ predominantly dendrite-free magnesium metal as the anode. While significant progress has been achieved with magnesium electrolytes in recent years, the further development of Mg-ion batteries, however, is inherently limited by the lack of suitable cathode materials, mainly due to the slow diffusion of high-charge-density Mg-ions in the intercalation-type host structures and kinetic limitations of conversion-type cathodes that often causes poor cyclic stability. Nanostructuring the cathode materials offers an effective means of mitigating these challenges, due to the reduced diffusion length and higher surface areas. In this context, we present the highly reversible insertion of Mg-ions into nanostructured conversion-type CuS cathode, delivering high capacities of 300 mAh g−1 at room temperature and high cyclic stability over 200 cycles at a current density of 0.1 A g−1 with a high coulombic efficiency of 99.9%. These materials clearly outperform bulk CuS, which is electrochemically active only at an elevated temperature of 50 °C. Our results not only point to the important role of nanomaterials in the enhancement of the kinetics of conversion reactions but also suggest that nanostructuring should be used as an integral tool in the exploration of new cathodes for multivalent, i.e., (Mg, Ca, Al)-ion batteries.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Nature
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.title
Copper sulfide nanoparticles as high-performance cathode materials for Mg-ion batteries
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2019-05-29
ethz.journal.title
Scientific Reports
ethz.journal.volume
9
en_US
ethz.journal.abbreviated
Sci Rep
ethz.pages.start
7988
en_US
ethz.size
8 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
London
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
2019-06-16T17:57:38Z
ethz.source
WOS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2019-06-17T14:21:57Z
ethz.rosetta.lastUpdated
2024-02-02T08:19:07Z
ethz.rosetta.versionExported
true
ethz.COinS
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