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High entropy oxides as anode material for Li-ion battery applications: A practical approach

Wang, Q.; Sarkar, A.; Li, Z.; Lu, Y.; Velasco, L.; Bhattacharya, S. S.; Brezesinski, T.; Hahn, H.; Breitung, B.

Abstract:
Owing to their robust Li-ion storage properties induced by the entropy stabilization effect, transition-metal-based high entropy oxides are considered promising electrode materials for use in Li-ion batteries. In this work, full-cells comprising (Co0.2Cu0.2Mg0.2Ni0.2Zn0.2)O anode and LiNi1/3Co1/3Mn1/3O2 cathode were assembled to explore their potential for practical applications. The cycling performance was studied by different electrochemical experiments. The cells were found to deliver an initial specific discharge capacity of 446 mAh g−1, which was maintained at 300 and 256 mAh g−1 after 50 and 100 cycles, respectively, and they showed stable cyclability even at specific currents of 1.6 A g−1. More importantly, high specific energy and power densities of about 240 Wh kg−1 and 320 W kg−1 were achieved. Additionally, pouch cells of total capacity 2.5 mAh were built and successfully employed as a power source.

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Verlagsausgabe §
DOI: 10.5445/IR/1000091578
Veröffentlicht am 14.05.2019
Originalveröffentlichung
DOI: 10.1016/j.elecom.2019.02.001
Scopus
Zitationen: 5
Web of Science
Zitationen: 4
Coverbild
Zugehörige Institution(en) am KIT Institut für Nanotechnologie (INT)
Helmholtz-Institut Ulm (HIU)
Karlsruhe Nano Micro Facility (KNMF)
Publikationstyp Zeitschriftenaufsatz
Jahr 2019
Sprache Englisch
Identifikator ISSN: 1388-2481, 1873-1902
KITopen-ID: 1000091578
HGF-Programm 37.01.01 (POF III, LK 01)
Erschienen in Electrochemistry communications
Band 100
Seiten 121-125
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Schlagworte ALD
Nachgewiesen in Web of Science
Scopus
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