High energy density Li/Ni/Co-free O3/P2 sodium layered oxide intergrowth for sodium-ion batteries

Philip  A. Maughan; Aaron  Benjamin Naden; John Irvine; Anthony  Robert Armstrong

doi:10.1002/batt.202300089

High energy density Li/Ni/Co-free O3/P2 sodium layered oxide intergrowth for sodium-ion batteries

Philip A. Maughan, Aaron Benjamin Naden, John Irvine, Anthony Robert Armstrong^*

^*Corresponding author for this work

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

Abstract

Sodium-ion batteries have attracted widespread interest due to the potential for providing safe and cheap energy storage. However, large scale use of Na-ion batteries is limited by insufficient performance from positive electrode materials, while also avoiding the use of expensive and toxic elements. Here, we present a bi-phasic sodium layered oxide material, O3/P2-Na_0.75Mn_0.35Fe_0.35Ti_0.1Al_0.1Cu_0.1O₂, free of Li, Ni, and Co, which delivered high energy densities up to 420 Wh kg^-1, discharge potential of 3.03 V, and high capacity retention of 80% over 70 cycles in half cells (292 Wh Kg^-1 in full cells). Crucially, the high Na content is sufficient to provide high energy densities in full cell format. The intergrown nature of the material was confirmed by TEM and SAED analysis, while ex-situ XRD studies revealed the two phases undergo complementary c-parameter evolution, reducing overall volume change. These results demonstrate the potential for future commercialisation of bi-phasic materials utilising only Earth abundant elements.

Original language	English
Article number	e202300089
Number of pages	9
Journal	Batteries & Supercaps
Volume	6
Issue number	7
Early online date	5 Jun 2023
DOIs	https://doi.org/10.1002/batt.202300089
Publication status	Published - 1 Jul 2023

Keywords

Layered compounds
Positive electrode material
Sodium
Biphasic material
Low cost material

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10.1002/batt.202300089Licence: CC BY

Maughan-2023-High-energy-density-BattSupercaps-e202300089-CCBY
Copyright © 2023 The Authors. Batteries & Supercaps published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
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Light Element Analysis Facility (LEAF): Light Element Analysis Facility (LEAF)
Irvine, J. T. S. (PI), Baker, R. (CoI) & Miller, D. N. (CoI)
EPSRC
5/04/20 → 4/04/23
Project: Standard
NEXGENNA: Next Generation Na-ion Batteries
Irvine, J. T. S. (PI), Armstrong, R. (CoI) & Morris, R. E. (CoI)
1/10/19 → 30/09/23
Project: Standard
Electon Microscopy: Electon Microscopy for the characterisation and manipulation of advanced function materials and their interfaces at the nanoscale
Irvine, J. T. S. (PI), Baker, R. (CoI) & Zhou, W. (CoI)
EPSRC
1/04/18 → 2/09/20
Project: Standard

Cite this

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title = "High energy density Li/Ni/Co-free O3/P2 sodium layered oxide intergrowth for sodium-ion batteries",

abstract = "Sodium-ion batteries have attracted widespread interest due to the potential for providing safe and cheap energy storage. However, large scale use of Na-ion batteries is limited by insufficient performance from positive electrode materials, while also avoiding the use of expensive and toxic elements. Here, we present a bi-phasic sodium layered oxide material, O3/P2-Na0.75Mn0.35Fe0.35Ti0.1Al0.1Cu0.1O2, free of Li, Ni, and Co, which delivered high energy densities up to 420 Wh kg-1, discharge potential of 3.03 V, and high capacity retention of 80% over 70 cycles in half cells (292 Wh Kg-1 in full cells). Crucially, the high Na content is sufficient to provide high energy densities in full cell format. The intergrown nature of the material was confirmed by TEM and SAED analysis, while ex-situ XRD studies revealed the two phases undergo complementary c-parameter evolution, reducing overall volume change. These results demonstrate the potential for future commercialisation of bi-phasic materials utilising only Earth abundant elements.",

keywords = "Layered compounds, Positive electrode material, Sodium, Biphasic material, Low cost material",

author = "Maughan, {Philip A.} and Naden, {Aaron Benjamin} and John Irvine and Armstrong, {Anthony Robert}",

note = "Funding: This work was supported by the Faraday Institution (grant number FIRG018). The authors would like to thank Dr David Rochester at Lancaster University for conducting the ICP-OES experiments. A.B.N. would like to acknowledge funding by the Engineering and Physical Sciences Research Council under grant numbers EP/L017008/1, EP/R023751/1 and EP/T019298/1 for the electron microscopy analysis.",

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doi = "10.1002/batt.202300089",

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T1 - High energy density Li/Ni/Co-free O3/P2 sodium layered oxide intergrowth for sodium-ion batteries

AU - Maughan, Philip A.

AU - Naden, Aaron Benjamin

AU - Irvine, John

AU - Armstrong, Anthony Robert

N1 - Funding: This work was supported by the Faraday Institution (grant number FIRG018). The authors would like to thank Dr David Rochester at Lancaster University for conducting the ICP-OES experiments. A.B.N. would like to acknowledge funding by the Engineering and Physical Sciences Research Council under grant numbers EP/L017008/1, EP/R023751/1 and EP/T019298/1 for the electron microscopy analysis.

PY - 2023/7/1

Y1 - 2023/7/1

N2 - Sodium-ion batteries have attracted widespread interest due to the potential for providing safe and cheap energy storage. However, large scale use of Na-ion batteries is limited by insufficient performance from positive electrode materials, while also avoiding the use of expensive and toxic elements. Here, we present a bi-phasic sodium layered oxide material, O3/P2-Na0.75Mn0.35Fe0.35Ti0.1Al0.1Cu0.1O2, free of Li, Ni, and Co, which delivered high energy densities up to 420 Wh kg-1, discharge potential of 3.03 V, and high capacity retention of 80% over 70 cycles in half cells (292 Wh Kg-1 in full cells). Crucially, the high Na content is sufficient to provide high energy densities in full cell format. The intergrown nature of the material was confirmed by TEM and SAED analysis, while ex-situ XRD studies revealed the two phases undergo complementary c-parameter evolution, reducing overall volume change. These results demonstrate the potential for future commercialisation of bi-phasic materials utilising only Earth abundant elements.

AB - Sodium-ion batteries have attracted widespread interest due to the potential for providing safe and cheap energy storage. However, large scale use of Na-ion batteries is limited by insufficient performance from positive electrode materials, while also avoiding the use of expensive and toxic elements. Here, we present a bi-phasic sodium layered oxide material, O3/P2-Na0.75Mn0.35Fe0.35Ti0.1Al0.1Cu0.1O2, free of Li, Ni, and Co, which delivered high energy densities up to 420 Wh kg-1, discharge potential of 3.03 V, and high capacity retention of 80% over 70 cycles in half cells (292 Wh Kg-1 in full cells). Crucially, the high Na content is sufficient to provide high energy densities in full cell format. The intergrown nature of the material was confirmed by TEM and SAED analysis, while ex-situ XRD studies revealed the two phases undergo complementary c-parameter evolution, reducing overall volume change. These results demonstrate the potential for future commercialisation of bi-phasic materials utilising only Earth abundant elements.

KW - Layered compounds

KW - Positive electrode material

KW - Sodium

KW - Biphasic material

KW - Low cost material

U2 - 10.1002/batt.202300089

DO - 10.1002/batt.202300089

M3 - Article

SN - 2566-6223

VL - 6

JO - Batteries & Supercaps

JF - Batteries & Supercaps

IS - 7

M1 - e202300089

ER -

High energy density Li/Ni/Co-free O3/P2 sodium layered oxide intergrowth for sodium-ion batteries

Abstract

Keywords

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Projects

Light Element Analysis Facility (LEAF): Light Element Analysis Facility (LEAF)

NEXGENNA: Next Generation Na-ion Batteries

Electon Microscopy: Electon Microscopy for the characterisation and manipulation of advanced function materials and their interfaces at the nanoscale

Cite this