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Synthesis of Li1.20Mn0.432+Nb0.39O2 disordered rock-salt under reducing conditions for Li-ion batteries
Wilgner Lima da Silva1,2, Ashok S Menon2, Martin R Lees3
1Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK. r.i.walton@warwick.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.

