Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

The Role of Metal Substitution in Tuning Anion Redox in Sodium Metal Layered Oxides Revealed by X-Ray Spectroscopy and Theory

Journal Article · · Angewandte Chemie (International Edition)
 [1];  [2];  [3];  [4];  [5];  [1];  [1];  [2]
  1. Stanford Univ., CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
  2. Univ. of Waterloo, ON (Canada)
  3. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  4. SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Synchrotron Radiation Lightsource (SSRL); Stanford Univ., CA (United States)
  5. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)

We investigate high-valent oxygen redox in the positive Na-ion electrode P2-Na0.67-x[Fe0.5Mn0.5]O2 (NMF) where Fe is partially substituted with Cu (P2-Na0.67-x[Mn0.66Fe0.20Cu0.14]O2, NMFC) or Ni (P2-Na0.67-x[Mn0.65Fe0.20Ni0.15]O2, NMFN). From combined analysis of resonant inelastic X-ray scattering and X-ray near-edge structure with electrochemical voltage hysteresis and X-ray pair distribution function profiles, we correlate structural disorder with high-valent oxygen redox and its improvement by Ni or Cu substitution. Density of states calculations elaborate considerable anionic redox in NMF and NMFC without the widely accepted requirement of an A-O-A' local configuration in the pristine materials (where A=Na and A'=Li, Mg, vacancy, etc.). We also show that the Jahn–Teller nature of Fe4+ and the stabilization mechanism of anionic redox could determine the extent of structural disorder in the materials. These findings shed light on the design principles in TM and anion redox for positive electrodes to improve the performance of Na-ion batteries.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-76SF00515; AC02-05CH11231; AC02-05CH11231
OSTI ID:
1781060
Alternate ID(s):
OSTI ID: 1786120
Journal Information:
Angewandte Chemie (International Edition), Journal Name: Angewandte Chemie (International Edition) Journal Issue: 19 Vol. 60; ISSN 1433-7851
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

References (57)

Reversible Flat to Rippling Phase Transition in Fe Containing Layered Battery Electrode Materials journal July 2018
High-Performance P2-Type Na 2/3 (Mn 1/2 Fe 1/4 Co 1/4 )O 2 Cathode Material with Superior Rate Capability for Na-Ion Batteries journal September 2015
Computational Design and Preparation of Cation-Disordered Oxides for High-Energy-Density Li-Ion Batteries journal May 2016
Highly Reversible Oxygen-Redox Chemistry at 4.1 V in Na 4/7− x [□ 1/7 Mn 6/7 ]O 2 (□: Mn Vacancy) journal April 2018
Anionic Redox Activity in a Newly Zn-Doped Sodium Layered Oxide P2-Na 2/3 Mn 1− y Zn y O 2 (0 < y < 0.23) journal October 2018
Anionic Redox Activity Regulated by Transition Metal in Lithium‐Rich Layered Oxides journal June 2020
The Emerging Chemistry of Sodium Ion Batteries for Electrochemical Energy Storage journal February 2015
Layered P2-Na 0.66 Fe 0.5 Mn 0.5 O 2 Cathode Material for Rechargeable Sodium-Ion Batteries journal August 2013
Sodium deintercalation from sodium iron oxide journal June 1994
Layered Na[Ni1/3Fe1/3Mn1/3]O2 cathodes for Na-ion battery application journal January 2012
NaFe0.5Co0.5O2 as high energy and power positive electrode for Na-ion batteries journal September 2013
P2-type Na0.67Mn0.65Fe0.2Ni0.15O2 Cathode Material with High-capacity for Sodium-ion Battery journal January 2014
Structure-Induced Reversible Anionic Redox Activity in Na Layered Oxide Cathode journal January 2018
High Reversibility of Lattice Oxygen Redox Quantified by Direct Bulk Probes of Both Anionic and Cationic Redox Reactions journal February 2019
Design Rules for High-Valent Redox in Intercalation Electrodes journal July 2020
Anionic and cationic redox and interfaces in batteries: Advances from soft X-ray absorption spectroscopy to resonant inelastic scattering journal June 2018
Stabilizing the oxygen lattice and reversible oxygen redox in Na-deficient cathode oxides journal November 2019
Harbinger of hysteresis in lithium-rich oxides: Anionic activity or defect chemistry of cation migration journal September 2020
Iron migration and oxygen oxidation during sodium extraction from NaFeO2 journal May 2018
Uptake of CO 2 in Layered P2-Na 0.67 Mn 0.5 Fe 0.5 O 2 : Insertion of Carbonate Anions journal March 2015
High-Performance P2-Phase Na 2/3 Mn 0.8 Fe 0.1 Ti 0.1 O 2 Cathode Material for Ambient-Temperature Sodium-Ion Batteries journal December 2015
Lithium Extraction Mechanism in Li-Rich Li 2 MnO 3 Involving Oxygen Hole Formation and Dimerization journal September 2016
Structural Evolution and Redox Processes Involved in the Electrochemical Cycling of P2–Na 0.67 [Mn 0.66 Fe 0.20 Cu 0.14 ]O 2 journal July 2017
Anionic Redox Activity as a Key Factor in the Performance Degradation of NaFeO 2 Cathodes for Sodium Ion Batteries journal May 2019
Full Energy Range Resonant Inelastic X-ray Scattering of O 2 and CO 2 : Direct Comparison with Oxygen Redox State in Batteries journal March 2020
Spectroscopic Signature of Oxidized Oxygen States in Peroxides journal October 2018
Electrospun P2-type Na 2/3 (Fe 1/2 Mn 1/2 )O 2 Hierarchical Nanofibers as Cathode Material for Sodium-Ion Batteries journal June 2014
P2-Na x Mn 1/2 Fe 1/2 O 2 Phase Used as Positive Electrode in Na Batteries: Structural Changes Induced by the Electrochemical (De)intercalation Process journal September 2014
Re-entrant Lithium Local Environments and Defect Driven Electrochemistry of Li- and Mn-Rich Li-Ion Battery Cathodes journal February 2015
Exploring Oxygen Activity in the High Energy P2-Type Na 0.78 Ni 0.23 Mn 0.69 O 2 Cathode Material for Na-Ion Batteries journal March 2017
Unraveling Oxygen Evolution in Li-Rich Oxides: A Unified Modeling of the Intermediate Peroxo/Superoxo-like Dimers journal June 2019
Origin of the Overpotential for Oxygen Reduction at a Fuel-Cell Cathode journal November 2004
Role of Ligand-to-Metal Charge Transfer in O3-Type NaFeO 2 –NaNiO 2 Solid Solution for Enhanced Electrochemical Properties journal January 2014
A cost and resource analysis of sodium-ion batteries journal March 2018
The structural and chemical origin of the oxygen redox activity in layered and cation-disordered Li-excess cathode materials journal May 2016
Oxygen redox chemistry without excess alkali-metal ions in Na2/3[Mg0.28Mn0.72]O2 journal January 2018
Intermediate honeycomb ordering to trigger oxygen redox chemistry in layered battery electrode journal April 2016
P2-type Nax[Fe1/2Mn1/2]O2 made from earth-abundant elements for rechargeable Na batteries journal April 2012
Coupling between oxygen redox and cation migration explains unusual electrochemistry in lithium-rich layered oxides journal December 2017
Elucidating anionic oxygen activity in lithium-rich layered oxides journal March 2018
Coulombic self-ordering upon charging a large-capacity layered cathode material for rechargeable batteries journal May 2019
Fundamental understanding and practical challenges of anionic redox activity in Li-ion batteries journal April 2018
Probing the thermal effects of voltage hysteresis in anionic redox-based lithium-rich cathodes using isothermal calorimetry journal July 2019
Metal–oxygen decoordination stabilizes anion redox in Li-rich oxides journal February 2019
Unified picture of anionic redox in Li/Na-ion batteries journal March 2019
Superstructure control of first-cycle voltage hysteresis in oxygen-redox cathodes journal December 2019
Synthesis and characterization of pure P2- and O3-Na 2/3 Fe 2/3 Mn 1/3 O 2 as cathode materials for Na ion batteries journal January 2014
Structure of the high voltage phase of layered P2-Na 2/3−z [Mn 1/2 Fe 1/2 ]O 2 and the positive effect of Ni substitution on its stability journal January 2015
Exploring reversible oxidation of oxygen in a manganese oxide journal January 2016
Identification and characterisation of high energy density P2-type Na 2/3 [Ni 1/3−y/2 Mn 2/3−y/2 Fe y ]O 2 compounds for Na-ion batteries journal January 2018
A comparison of destabilization mechanisms of the layered NaxMO2 and LixMO2 compounds upon alkali de-intercalation journal January 2012
Oxygen and transition metal involvement in the charge compensation mechanism of LiNi1/3Mn1/3Co1/3O2 cathodes journal January 2012
Novel copper redox-based cathode materials for room-temperature sodium-ion batteries journal November 2014
Electrochemical Properties of NaCuO2 for Sodium-Ion Secondary Batteries journal February 2014
The Interaction between Cu and Fe in P2-Type Na x TMO 2 Cathodes for Advanced Battery Performance journal January 2018
Structural and Electrochemical Characterizations of P2 and New O3-Na x Mn 1-y Fe y O 2 Phases Prepared by Auto-Combustion Synthesis for Na-Ion Batteries journal January 2013
Fingerprint Oxygen Redox Reactions in Batteries through High-Efficiency Mapping of Resonant Inelastic X-ray Scattering journal January 2019