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Title: Solid state synthesis of layered sodium manganese oxide for sodium-ion battery by in-situ high energy X-ray diffraction and X-ray absorption near edge spectroscopy [Solid state synthesis of layered sodium manganese oxide for sodium-ion battery by in-situ HEXRD and XANES]

Journal Article · · Journal of Power Sources
 [1];  [2];  [2];  [2];  [2];  [2];  [2];  [3];  [2];  [2]
  1. Argonne National Lab. (ANL), Argonne, IL (United States); Univ. of Rochester, Rochester, NY (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States)
  3. Univ. of Rochester, Rochester, NY (United States)

In situ high energy X-ray diffraction (HEXRD) and in situ X-ray absorption near edge spectroscopy (XANES) were carried out to understand the soild state synthesis of NaxMnO2, with particular interest on the synthesis of P2 type Na2/3MnO2. It was found that there were multi intermediate phases formed before NaMnO2 appeared at about 600 °C. And the final product after cooling process is a combination of O'3 NaMnO2 with P2 Na2/3MnO2. A P2 type Na2/3MnO2 was synthesized at reduced temperature (600 °C). The influence of Na2CO3 impurity on the electrochemical performance of P2 Na2/3MnO2 was thoroughly investigated in our work. It was found that the content of Na2CO3 can be reduced by optimizing Na2CO3/MnCO3 ratio during the solid state reaction or other post treatment such as washing with water. Lastly, we expected our results could provide a good guide for future development of high performance cathode materials for sodium-ion batteries.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V); USDOE
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1369033
Alternate ID(s):
OSTI ID: 1397470
Journal Information:
Journal of Power Sources, Vol. 341, Issue C; ISSN 0378-7753
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 21 works
Citation information provided by
Web of Science

References (24)

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An advanced cathode for Na-ion batteries with high rate and excellent structural stability journal January 2013
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Sur quelques nouvelles phases de formule NaxMnO2 (x ⩽ 1) journal February 1971
Sodium and Manganese Stoichiometry of P2-Type Na 2/3 MnO 2 journal September 2016
Solid state synthesis of LiFePO4 studied by in situ high energy X-ray diffraction journal January 2011
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Cited By (4)

Challenges in Developing Electrodes, Electrolytes, and Diagnostics Tools to Understand and Advance Sodium-Ion Batteries journal February 2018
Excellent cyclability of P2-type Na–Co–Mn–Si–O cathode material for high-rate sodium-ion batteries journal July 2019
A Novel Graphene Oxide Wrapped Na 2 Fe 2 (SO 4 ) 3 /C Cathode Composite for Long Life and High Energy Density Sodium-Ion Batteries journal August 2018
Ni- and/or Mn-based layered transition metal oxides as cathode materials for sodium ion batteries: status, challenges and countermeasures journal January 2019