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High entropy oxides for reversible energy storage

Sarkar, Abhishek 1; Velasco, Leonardo 1; Wang, Di ORCID iD icon 1,2; Wang, Qingsong 1; Talasila, Gopichand 1; Biasi, Lea de 1; Kübel, Christian ORCID iD icon 1,2; Brezesinski, Torsten ORCID iD icon 1; Bhattacharya, Subramshu S.; Hahn, Horst 1; Breitung, Ben ORCID iD icon 1,2
1 Institut für Nanotechnologie (INT), Karlsruher Institut für Technologie (KIT)
2 Karlsruhe Nano Micro Facility (KNMF), Karlsruher Institut für Technologie (KIT)

Abstract:

In recent years, the concept of entropy stabilization of crystal structures in oxide systems has led to an increased research activity in the field of “high entropy oxides”. These compounds comprise the incorporation of multiple metal cations into single-phase crystal structures and interactions among the various metal cations leading to interesting novel and unexpected properties. Here, we report on the reversible lithium storage properties of the high entropy oxides, the underlying mechanisms governing these properties, and the influence of entropy stabilization on the electrochemical behavior. It is found that the stabilization effect of entropy brings significant benefits for the storage capacity retention of high entropy oxides and greatly improves the cycling stability. Additionally, it is observed that the electrochemical behavior of the high entropy oxides depends on each of the metal cations present, thus providing the opportunity to tailor the electrochemical properties by simply changing the elemental composition.


Verlagsausgabe §
DOI: 10.5445/IR/1000085833
Veröffentlicht am 17.09.2018
Originalveröffentlichung
DOI: 10.1038/s41467-018-05774-5
Scopus
Zitationen: 716
Web of Science
Zitationen: 684
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Zitationen: 744
Cover der Publikation
Zugehörige Institution(en) am KIT Helmholtz-Institut Ulm (HIU)
Institut für Nanotechnologie (INT)
Karlsruhe Nano Micro Facility (KNMF)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 12.2018
Sprache Englisch
Identifikator ISSN: 2041-1723
urn:nbn:de:swb:90-858337
KITopen-ID: 1000085833
HGF-Programm 43.22.03 (POF III, LK 01) Printed Materials and Systems
Erschienen in Nature Communications
Verlag Nature Research
Band 9
Heft 1
Seiten Article number: 3400
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Vorab online veröffentlicht am 24.08.2018
Nachgewiesen in Web of Science
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Scopus
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