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Title: Electrochemical Utilization of Iron IV in the Li1.3Fe0.4Nb0.3O2 Disordered Rocksalt Cathode

Journal Article · · Batteries & Supercaps
ORCiD logo [1];  [2];  [3]; ORCiD logo [1];  [4]; ORCiD logo [1];  [2]; ORCiD logo [3];  [5]; ORCiD logo [3]; ORCiD logo [5]; ORCiD logo [4]; ORCiD logo [2]; ORCiD logo [6]
  1. Binghamton Univ., NY (United States)
  2. Univ. of California San Diego, La Jolla, CA (United States)
  3. Univ. of Cambridge (United Kingdom)
  4. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  5. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  6. Binghamton Univ., NY (United States); Univ. of Warwick, Coventry (United Kingdom)

Interest in alkali-rich oxide cathodes has grown in an effort to identify systems that provide high energy densities through reversible oxygen redox. However, some of the most promising compositions such as those based solely on earth abundant elements, e.g. iron and manganese, suffer from poor capacity retention and large hysteresis. Here, we use the disordered rocksalt cathode, Li1.3Fe0.4Nb0.3O2, as a model system to identify the underlying origin for the poor performance of Li-rich iron based cathodes. Using elementally specific spectroscopic probes, we find the first charge is primarily accounted for by iron oxidation to 4+ below 4.25 V and O2 gas release beyond 4.25 V with limited evidence of bulk oxygen redox. Although the Li1.3Fe0.4Nb0.3O2 is not a viable oxygen redox cathode, the iron 3+/4+ redox couple can be used reversibly during cycling.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-05CH11231; AC02-06CH11357; SC0012704; AC05-76RL01830
OSTI ID:
1826554
Alternate ID(s):
OSTI ID: 1804516; OSTI ID: 1829679
Report Number(s):
PNNL-SA-156856; ark:/13030/qt11h2x88m
Journal Information:
Batteries & Supercaps, Vol. 4, Issue 5; ISSN 2566-6223
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

References (40)

Electrochemical properties and Mössbauer effect of anti-fluorite type compound, LiFeO journal November 2005
Characterization of Disordered Li (1+ x ) Ti 2 x Fe (1–3 x ) O 2 as Positive Electrode Materials in Li-Ion Batteries Using Percolation Theory journal November 2015
The iron L edges: Fe 2p X-ray absorption and electron energy loss spectroscopy journal April 2013
A first principles investigation of new cathode materials for advanced lithium batteries journal December 2006
Origin of High Capacity and Poor Cycling Stability of Li-Rich Layered Oxides: A Long-Duration in Situ Synchrotron Powder Diffraction Study journal May 2018
Identifying the Chemical Origin of Oxygen Redox Activity in Li-Rich Anti-Fluorite Lithium Iron Oxide by Experimental and Theoretical X-ray Absorption Spectroscopy journal January 2019
Structure and electrode reactions of layered rocksalt LiFeO2 nanoparticles for lithium battery cathode journal August 2011
Cation-Disordered Lithium-Excess Li–Fe–Ti Oxide Cathode Materials for Enhanced Li-Ion Storage journal November 2019
Intrinsic instability of Fe4+ in electrochemically oxidized ramsdellite and orthorhombic Li1−xHxFeO2 journal January 1999
Enabling multi-electron reaction of ε-VOPO 4 to reach theoretical capacity for lithium-ion batteries journal January 2018
High-temperature storage and cycling of C-LiFePO4/graphite Li-ion cells journal July 2005
Understanding electrochemical potentials of cathode materials in rechargeable batteries journal March 2016
Structural properties and electrochemistry of α-LiFeO2 journal January 2012
Evolution of the Electrode–Electrolyte Interface of LiNi 0.8 Co 0.15 Al 0.05 O 2 Electrodes Due to Electrochemical and Thermal Stress journal January 2018
Low temperature synthesis and electrochemical characteristics of LiFeO2 cathodes journal October 1997
Synthesis, characterisation and corrosion behaviour of simulant Chernobyl nuclear meltdown materials journal January 2020
Dissociate lattice oxygen redox reactions from capacity and voltage drops of battery electrodes journal February 2020
Highly electroactive nanosized α-LiFeO2 journal August 2007
Insights into the electrochemical activity of nanosized α-LiFeO2 journal September 2008
Valence Band Structure and X-ray Spectra of Oxygen-Deficient Ferrites SrFeO x journal March 2010
Lithium deintercalation in LiFePO4 nanoparticles via a domino-cascade model journal July 2008
Superstructure control of first-cycle voltage hysteresis in oxygen-redox cathodes journal December 2019
Fundamental understanding and practical challenges of anionic redox activity in Li-ion batteries journal April 2018
Low temperature synthesis of Fe2O3 and LiFeO2 as cathode materials for lithium-ion batteries journal August 2014
Elektrochemische Oxidation von Lithiumcarbonat generiert Singulett‐Sauerstoff journal April 2018
First Principles Study on Factors Determining Battery Voltages of LiMO 2 ( M = Ti - Ni ) journal August 1999
High-Capacity P2-Type Na x Li 0.25 Mn 0.75 O 2 Cathode Enabled by Anionic Oxygen Redox journal January 2019
A high pressure pathway toward boron-based nanostructured solids journal January 2018
Distinction between Intrinsic and X-ray-Induced Oxidized Oxygen States in Li-Rich 3d Layered Oxides and LiAlO 2 journal May 2019
Role of Electronic Structure in the Susceptibility of Metastable Transition-Metal Oxide Structures to Transformation journal October 2004
Novel Complex Stacking of Fully-Ordered Transition Metal Layers in Li 4 FeSbO 6 Materials journal February 2015
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
Origin of stabilization and destabilization in solid-state redox reaction of oxide ions for lithium-ion batteries journal December 2016
Preparation of LiFeO[sub 2] with Alpha-NaFeO[sub 2]-Type Structure Using a Mixed-Alkaline Hydrothermal Method journal January 1997
Electrochemical Oxidation of Lithium Carbonate Generates Singlet Oxygen journal April 2018
Enabling the high capacity of lithium-rich anti-fluorite lithium iron oxide by simultaneous anionic and cationic redox journal December 2017
Identifying the anionic redox activity in cation-disordered Li 1.25 Nb 0.25 Fe 0.50 O 2 /C oxide cathodes for Li-ion batteries journal January 2020
Surface aging at olivine LiFePO 4 : a direct visual observation of iron dissolution and the protection role of nano-carbon coating journal January 2013
Quantifying the Capacity Contributions during Activation of Li 2 MnO 3 journal January 2020