Electrochemical performance of Na0.6[Li0.2Ni0.2Mn0.6]O2 cathodes with high-working average voltage for Na-ion batteries

Ezequiel De La Llave, Prasant Kumar Nayak, Elena Levi, Tirupathi Rao Penki, Shaul Bublil, Pascal Hartmann, Frederick Francois Chesneau, Miri Greenstein, Linda F. Nazar, Doron Aurbach

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31 Scopus citations


Na0.6[Li0.2Ni0.2Mn0.6]O2 is synthesized by a self-combustion reaction (SCR) and studied for the first time as a cathode material for Na-ion batteries. The Na0.6[Li0.2Ni0.2Mn0.6]O2 cathode presents remarkable high rate capability and prolonged stability under galvanostatic cycling. A detailed analysis of X-ray diffraction (XRD) patterns at various states of cycling reveals that the excellent structural stability is due to a primarily solid-solution sodiation/desodiation mechanism of the material during cycling. Moreover, a meaningful comparison with Na0.6MnO2 and Na0.6[Li0.2Mn0.8]O2 reveals that the Na0.6[Li0.2Ni0.2Mn0.6]O2 cathode achieves a very high working-average voltage that outperforms most of the lithium-doped manganese-oxide cathodes published to date.

Original languageEnglish
Pages (from-to)5858-5864
Number of pages7
JournalJournal of Materials Chemistry A
Issue number12
StatePublished - 2017

Bibliographical note

Funding Information:
L. F. N. and D. A. gratefully acknowledge funding from BASF SE for ongoing support through the BASF Research Network in Electrochemistry and Batteries. Partial support for this work was obtained from the Israel Science Foundation (ISF) as part of the INREP project, and from the Israel Ministry of Science and Technology as part of the Israel-India cooperation program.

Publisher Copyright:
© The Royal Society of Chemistry.


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