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

Synthesis of Li_1.20Mn₀.₄₃²⁺Nb_0.39O₂ 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^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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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.

Original language	English
Pages (from-to)	13502-13505
Number of pages	4
Journal	Chemical Communications
Volume	59
Issue number	90
Early online date	19 Oct 2023
DOIs	https://doi.org/10.1039/d3cc04264b
Publication status	Published - 21 Nov 2023

Bibliographical note

Acknowledgments:
We thank Companhia Brasileira de Metalurgia e Mineração (CBMM) for funding and the University of Warwick's Research Technology Platforms for provision of some of the instrumentation used. M. W. acknowledges financial support from the Engineering and Physical Sciences Research Council (EPSRC)-funded Warwick Analytical Science Centre (EP/V007688/1). Access to I11 at Diamond Light Source was provided by the Block Allocation Group award “Oxford/Warwick Solid State Chemistry BAG to probe composition-structure-property relationships in solids” (CY25166) and access to B18 was provided by the Energy Materials Block Allocation Group SP14239. We are grateful to Dr Giannantonio Cibin for their help with data acquisition on B18. A. S. M would like to acknowledge the Faraday Institution FutureCat (FIRG017) project.

Keywords

Materials Science
Li-ion batteries
Solid State Chemistry

Access to Document

10.1039/d3cc04264bLicence: Creative Commons: Attribution (CC BY)

LimadaSilvaW2023SynthesisFinal published version, 1.8 MBLicence: Creative Commons: Attribution (CC BY)

Cite this

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

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.",

keywords = "Materials Science, Li-ion batteries, Solid State Chemistry",

author = "{Lima da Silva}, Wilgner and Menon, {Ashok S.} and Lees, {Martin R.} and Kashtiban, {Reza J.} and Marc Walker and Piper, {Louis F.J.} and Emma Kendrick and Walton, {Richard I.}",

note = "Acknowledgments: We thank Companhia Brasileira de Metalurgia e Minera{\c c}{\~a}o (CBMM) for funding and the University of Warwick's Research Technology Platforms for provision of some of the instrumentation used. M. W. acknowledges financial support from the Engineering and Physical Sciences Research Council (EPSRC)-funded Warwick Analytical Science Centre (EP/V007688/1). Access to I11 at Diamond Light Source was provided by the Block Allocation Group award “Oxford/Warwick Solid State Chemistry BAG to probe composition-structure-property relationships in solids” (CY25166) and access to B18 was provided by the Energy Materials Block Allocation Group SP14239. We are grateful to Dr Giannantonio Cibin for their help with data acquisition on B18. A. S. M would like to acknowledge the Faraday Institution FutureCat (FIRG017) project.",

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language = "English",

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T1 - Synthesis of Li1.20Mn0.432+Nb0.39O2 disordered rock-salt under reducing conditions for Li-ion batteries

AU - Lima da Silva, Wilgner

AU - Menon, Ashok S.

AU - Lees, Martin R.

AU - Kashtiban, Reza J.

AU - Walker, Marc

AU - Piper, Louis F.J.

AU - Kendrick, Emma

AU - Walton, Richard I.

N1 - Acknowledgments: We thank Companhia Brasileira de Metalurgia e Mineração (CBMM) for funding and the University of Warwick's Research Technology Platforms for provision of some of the instrumentation used. M. W. acknowledges financial support from the Engineering and Physical Sciences Research Council (EPSRC)-funded Warwick Analytical Science Centre (EP/V007688/1). Access to I11 at Diamond Light Source was provided by the Block Allocation Group award “Oxford/Warwick Solid State Chemistry BAG to probe composition-structure-property relationships in solids” (CY25166) and access to B18 was provided by the Energy Materials Block Allocation Group SP14239. We are grateful to Dr Giannantonio Cibin for their help with data acquisition on B18. A. S. M would like to acknowledge the Faraday Institution FutureCat (FIRG017) project.

PY - 2023/11/21

Y1 - 2023/11/21

N2 - 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.

AB - 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.

KW - Materials Science

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KW - Solid State Chemistry

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