Short-range ordering in a battery electrode, the 'cation-disordered' rocksalt Li1.25Nb0.25Mn0.5O2

Michael A. Jones; Philip J. Reeves; Ieuan D. Seymour; Matthew J. Cliffe; Siân E. Dutton; Clare P. Grey

doi:10.1039/c9cc04250d

Short-range ordering in a battery electrode, the 'cation-disordered' rocksalt Li_1.25Nb_0.25Mn_0.5O₂

Michael A. Jones
, Philip J. Reeves
, Ieuan D. Seymour
, Matthew J. Cliffe
, Siân E. Dutton^* (Corresponding Author)
, Clare P. Grey^* (Corresponding Author)

^*Corresponding author for this work

Chemistry

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

76 Citations (Scopus)

Abstract

Cation order, with a local structure related to γ-LiFeO₂, is observed in the nominally cation-disordered Li-excess rocksalt Li_1.25Nb_0.25Mn_0.5O₂via X-ray diffraction, neutron pair distribution function analysis, magnetic susceptibility and NMR spectroscopy. The correlation length of ordering depends on synthesis conditions and has implications for the electrochemistry of these phases.

Original language	English
Pages (from-to)	9027-9030
Number of pages	4
Journal	Chemical Communications
Volume	55
Issue number	61
DOIs	https://doi.org/10.1039/c9cc04250d
Publication status	Published - 7 Aug 2019

Bibliographical note

Funding Information:
We are grateful for the financial support of the EPSRC CDT in Nanoscience and Nanotechnology, Award EP/L015978/1 (MAJ), and Northeast Centre for Chemical Energy Storage (NECCES), an Energy Frontier Research Centre funded by the US Department of Energy, Office of Basic Energy Sciences, Award DE-SC0012583 (PJR). Neutron scattering experiments were performed on the POLARIS instrument at the ISIS Neutron and Muon Source, with many thanks to Helen Playford. We thank Jack Hodkinson for assistance with neutron measurements and Josh Stratford for useful PDF discussions. MJC acknowledges the School of Chemistry, University of Nottingham for a Hobday Fellowship.

Data Availability Statement

No data availability statement.

Funding

We are grateful for the financial support of the EPSRC CDT in Nanoscience and Nanotechnology, Award EP/L015978/1 (MAJ), and Northeast Centre for Chemical Energy Storage (NECCES), an Energy Frontier Research Centre funded by the US Department of Energy, Office of Basic Energy Sciences, Award DE-SC0012583 (PJR). Neutron scattering experiments were performed on the POLARIS instrument at the ISIS Neutron and Muon Source, with many thanks to Helen Playford. We thank Jack Hodkinson for assistance with neutron measurements and Josh Stratford for useful PDF discussions. MJC acknowledges the School of Chemistry, University of Nottingham for a Hobday Fellowship.

Funders	Funder number
Engineering and Physical Sciences Research Council	EP/L015978/1
United States Department of Energy	DE-SC0012583
University of Nottingham	Hobday Fellowship

Access to Document

10.1039/c9cc04250d

Cite this

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title = "Short-range ordering in a battery electrode, the 'cation-disordered' rocksalt Li1.25Nb0.25Mn0.5O2",

abstract = "Cation order, with a local structure related to γ-LiFeO2, is observed in the nominally cation-disordered Li-excess rocksalt Li1.25Nb0.25Mn0.5O2via X-ray diffraction, neutron pair distribution function analysis, magnetic susceptibility and NMR spectroscopy. The correlation length of ordering depends on synthesis conditions and has implications for the electrochemistry of these phases.",

author = "Jones, \{Michael A.\} and Reeves, \{Philip J.\} and Seymour, \{Ieuan D.\} and Cliffe, \{Matthew J.\} and Dutton, \{Si{\^a}n E.\} and Grey, \{Clare P.\}",

note = "Funding Information: We are grateful for the financial support of the EPSRC CDT in Nanoscience and Nanotechnology, Award EP/L015978/1 (MAJ), and Northeast Centre for Chemical Energy Storage (NECCES), an Energy Frontier Research Centre funded by the US Department of Energy, Office of Basic Energy Sciences, Award DE-SC0012583 (PJR). Neutron scattering experiments were performed on the POLARIS instrument at the ISIS Neutron and Muon Source, with many thanks to Helen Playford. We thank Jack Hodkinson for assistance with neutron measurements and Josh Stratford for useful PDF discussions. MJC acknowledges the School of Chemistry, University of Nottingham for a Hobday Fellowship.",

year = "2019",

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language = "English",

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AU - Jones, Michael A.

AU - Reeves, Philip J.

AU - Seymour, Ieuan D.

AU - Cliffe, Matthew J.

AU - Dutton, Siân E.

AU - Grey, Clare P.

N1 - Funding Information: We are grateful for the financial support of the EPSRC CDT in Nanoscience and Nanotechnology, Award EP/L015978/1 (MAJ), and Northeast Centre for Chemical Energy Storage (NECCES), an Energy Frontier Research Centre funded by the US Department of Energy, Office of Basic Energy Sciences, Award DE-SC0012583 (PJR). Neutron scattering experiments were performed on the POLARIS instrument at the ISIS Neutron and Muon Source, with many thanks to Helen Playford. We thank Jack Hodkinson for assistance with neutron measurements and Josh Stratford for useful PDF discussions. MJC acknowledges the School of Chemistry, University of Nottingham for a Hobday Fellowship.

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N2 - Cation order, with a local structure related to γ-LiFeO2, is observed in the nominally cation-disordered Li-excess rocksalt Li1.25Nb0.25Mn0.5O2via X-ray diffraction, neutron pair distribution function analysis, magnetic susceptibility and NMR spectroscopy. The correlation length of ordering depends on synthesis conditions and has implications for the electrochemistry of these phases.

AB - Cation order, with a local structure related to γ-LiFeO2, is observed in the nominally cation-disordered Li-excess rocksalt Li1.25Nb0.25Mn0.5O2via X-ray diffraction, neutron pair distribution function analysis, magnetic susceptibility and NMR spectroscopy. The correlation length of ordering depends on synthesis conditions and has implications for the electrochemistry of these phases.

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