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Title: High-Capacity P2-Type NaxLi0.25Mn0.75O2 Cathode Enabled by Anionic Oxygen Redox

Journal Article · · Journal of the Electrochemical Society (Online)
DOI:https://doi.org/10.1149/2.0611916jes· OSTI ID:1760177
 [1];  [2];  [3]; ORCiD logo [4];  [5]; ORCiD logo [3]
  1. Wuhan Univ. (China); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  3. Univ. of California, Berkeley, CA (United States)
  4. Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  5. Wuhan Univ. (China)

Sodium-ion battery technology has attracted significant attention due to its substantial cost advantage and similar operating mechanism to Li-ion batteries. P2-type sodium manganese oxide cathode is one of the most promising candidates, demonstrating both high capacity and good cycling stability. Here, we explore the lattice oxygen activity in layered sodium transition metal oxides. We synthesize a series of sodium lithium manganese oxides, NaxLi0.25Mn0.75O2 (x = 0.75 – 0.833), to optimize Na content. We further investigate the charge compensation mechanism for the best performing Na0.75Li0.25Mn0.75O2 over an extensive electrochemical cycling window. The large charge and discharge capacity is enabled by reversible lattice oxygen redox in the high voltage region (≥2.5 V), along with Mn redox at the voltages below 2.5 V. Additionally, we reveal a small amount of oxygen gas evolution, 0.04% of the total oxygen in Na0.25Li0.25Mn0.75O2. This initial study will trigger an interest in the lattice oxygen activity in layered sodium metal oxide cathode, therefore, leading to better understanding of its correlation with crystal structure and electrochemical performance.

Research Organization:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1760177
Journal Information:
Journal of the Electrochemical Society (Online), Vol. 166, Issue 16; ISSN 1945-7111
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English

References (31)

Sodium and Sodium-Ion Batteries: 50 Years of Research journal February 2018
Investigation of the Charge Compensation Mechanism on the Electrochemically Li-Ion Deintercalated Li 1 - x Co 1/3 Ni 1/3 Mn 1/3 O 2 Electrode System by Combination of Soft and Hard X-ray Absorption Spectroscopy journal December 2005
A high-capacity P2 Na2/3Ni1/3Mn2/3O2 cathode material for sodium ion batteries with oxygen activity journal August 2018
Charge Heterogeneity and Surface Chemistry in Polycrystalline Cathode Materials journal March 2018
Electrochemistry and Solid‐State Chemistry of NaMeO 2 (Me = 3d Transition Metals) journal June 2018
Review—Manganese-Based P2-Type Transition Metal Oxides as Sodium-Ion Battery Cathode Materials journal January 2015
Charge-compensation in 3d-transition-metal-oxide intercalation cathodes through the generation of localized electron holes on oxygen journal March 2016
Soft X-Ray Irradiation Effects of Li2O2, Li2CO3 and Li2O Revealed by Absorption Spectroscopy journal November 2012
Surface reconstruction and chemical evolution of stoichiometric layered cathode materials for lithium-ion batteries journal March 2014
Anionic Redox Reaction-Induced High-Capacity and Low-Strain Cathode with Suppressed Phase Transition journal February 2019
Synthesis and electrochemistry of Li3MnO4: Mn in the +5 oxidation state journal October 2007
Lithium-Doping Stabilized High-Performance P2–Na 0.66 Li 0.18 Fe 0.12 Mn 0.7 O 2 Cathode for Sodium Ion Batteries journal April 2019
Oxygen redox chemistry without excess alkali-metal ions in Na2/3[Mg0.28Mn0.72]O2 journal January 2018
Exceptionally highly stable cycling performance and facile oxygen-redox of manganese-based cathode materials for rechargeable sodium batteries journal May 2019
New O2/P2-type Li-Excess Layered Manganese Oxides as Promising Multi-Functional Electrode Materials for Rechargeable Li/Na Batteries journal May 2014
Understanding the Degradation Mechanism of Lithium Nickel Oxide Cathodes for Li-Ion Batteries journal November 2016
Sodium and Manganese Stoichiometry of P2-Type Na 2/3 MnO 2 journal September 2016
Chemical versus Electrochemical Electrolyte Oxidation on NMC111, NMC622, NMC811, LNMO, and Conductive Carbon journal September 2017
Elucidating anionic oxygen activity in lithium-rich layered oxides journal March 2018
A novel P3-type Na 2/3 Mg 1/3 Mn 2/3 O 2 as high capacity sodium-ion cathode using reversible oxygen redox journal January 2019
Toward high energy density cathode materials for sodium-ion batteries: investigating the beneficial effect of aluminum doping on the P2-type structure journal January 2017
Residual Lithium Carbonate Predominantly Accounts for First Cycle CO 2 and CO Outgassing of Li-Stoichiometric and Li-Rich Layered Transition-Metal Oxides journal November 2017
Sodium-ion batteries: present and future journal January 2017
Sodium metal anodes for room-temperature sodium-ion batteries: Applications, challenges and solutions journal January 2019
A review of Ni-based layered oxides for rechargeable Li-ion batteries journal January 2017
Oxygen Release and Its Effect on the Cycling Stability of LiNi x Mn y Co z O 2 (NMC) Cathode Materials for Li-Ion Batteries journal January 2017
Electrode Materials for Rechargeable Sodium-Ion Batteries: Potential Alternatives to Current Lithium-Ion Batteries journal May 2012
Sodium-ion diffusion and ordering in single-crystal P 2 -Na x CoO 2 journal August 2008
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
Research Development on Sodium-Ion Batteries journal October 2014
Investigating Li 2 NiO 2 –Li 2 CuO 2 Solid Solutions as High-Capacity Cathode Materials for Li-Ion Batteries journal May 2017

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