Synthesis of Li1.20Mn0.432+Nb0.39O2 disordered rock-salt under reducing conditions for Li-ion batteries

Wilgner Lima da Silva; Ashok S. Menon; Martin R. Lees; Reza J. Kashtiban; Marc Walker; Louis F. J. Piper; Emma Kendrick; Richard I. Walton

doi:10.1039/D3CC04264B

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Synthesis of Li_1.20Mn_0.43²⁺Nb_0.39O₂ disordered rock-salt under reducing conditions for Li-ion batteries†

Wilgner Lima da Silva,

^ab Ashok S. Menon,

^b Martin R. Lees,

^c Reza J. Kashtiban,

^c Marc Walker,

^c Louis F. J. Piper,

^b Emma Kendrick

*^d and Richard I. Walton

*^a

Author affiliations

* Corresponding authors

^a Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK
E-mail: r.i.walton@warwick.ac.uk

^b WMG, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK

^c Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK

^d School of Metallurgy and Materials, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
E-mail: e.kendrick@bham.ac.uk

Abstract

A Mn²⁺-Li-Nb disordered rock-salt oxide cathode is prepared by a solid-state reaction under 5% H₂/N₂, and its electrochemical property shows a high voltage plateau at 4.8 V, with irreversible structural changes in the 1st cycle due to O redox processes; this is supported by powder X-ray diffraction and ex situ laboratory Mn K-edge XANES data.

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Article information

DOI: https://doi.org/10.1039/D3CC04264B
Article type: Communication
Submitted: 30 Aug 2023
Accepted: 19 Oct 2023
First published: 19 Oct 2023
This article is Open Access

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Chem. Commun., 2023,59, 13502-13505

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Synthesis of Li_1.20Mn_0.43²⁺Nb_0.39O₂ disordered rock-salt under reducing conditions for Li-ion batteries

W. L. da Silva, A. S. Menon, M. R. Lees, R. J. Kashtiban, M. Walker, L. F. J. Piper, E. Kendrick and R. I. Walton, Chem. Commun., 2023, 59, 13502 DOI: 10.1039/D3CC04264B

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