Intermediate honeycomb ordering to trigger oxygen redox chemistry in layered battery electrode

Benoit Mortemard de Boisse; Guandong Liu; Jiangtao Ma; Shin-ichi Nishimura; Sai-Cheong Chung; Hisao Kiuchi; Yoshihisa Harada; Jun Kikkawa; Yoshio Kobayashi; Masashi Okubo; Atsuo Yamada

doi:10.1038/ncomms11397

Nature Communications (Apr 2016)

Intermediate honeycomb ordering to trigger oxygen redox chemistry in layered battery electrode

Benoit Mortemard de Boisse,
Guandong Liu,
Jiangtao Ma,
Shin-ichi Nishimura,
Sai-Cheong Chung,
Hisao Kiuchi,
Yoshihisa Harada,
Jun Kikkawa,
Yoshio Kobayashi,
Masashi Okubo,
Atsuo Yamada

Affiliations

Benoit Mortemard de Boisse: Department of Chemical System Engineering, School of Engineering, The University of Tokyo
Guandong Liu: Department of Chemical System Engineering, School of Engineering, The University of Tokyo
Jiangtao Ma: Department of Chemical System Engineering, School of Engineering, The University of Tokyo
Shin-ichi Nishimura: Department of Chemical System Engineering, School of Engineering, The University of Tokyo
Sai-Cheong Chung: Department of Chemical System Engineering, School of Engineering, The University of Tokyo
Hisao Kiuchi: Department of Applied Chemistry, School of Engineering, The University of Tokyo
Yoshihisa Harada: Institute for Solid State Physics, The University of Tokyo
Jun Kikkawa: Advanced Key Technologies Division, National Institute for Materials Science
Yoshio Kobayashi: Department of Engineering Science, The University of Electro-Communications
Masashi Okubo: Department of Chemical System Engineering, School of Engineering, The University of Tokyo
Atsuo Yamada: Department of Chemical System Engineering, School of Engineering, The University of Tokyo

DOI: https://doi.org/10.1038/ncomms11397
Journal volume & issue: Vol. 7, no. 1
pp. 1 – 9

Abstract

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Sodium-excess metal oxides Na2MO3 are appealing cathode materials for sodium-ion batteries. Here, the authors demonstrate that honeycomb-type cation ordering in Na2RuO3 triggers the oxygen redox reaction via frontier orbital reorganization, increasing the capacity by 1/3 compared with disordered Na2RuO3.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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