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Updated: Dec 22, 2025

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
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Development of High-Throughput Methods for Sodium-Ion Battery Cathodes.

Tham Adhikari1, Alex Hebert1, Michel Adamič1

  • 1Department of Chemistry, McGill University, Montreal, H3A 0B8, Canada.

ACS Combinatorial Science
|May 7, 2020
PubMed
Summary

A new sol-gel synthesis method enables rapid, combinatorial production of sodium-ion cathode materials. This approach yields phase-pure samples, crucial for developing next-generation sodium-ion batteries.

Keywords:
Na-ion cathodeX-ray diffractioncombinatorial synthesishigh-throughput electrochemistrylayered oxides

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Energy Storage

Background:

  • Combinatorial synthesis accelerates materials discovery for lithium-ion batteries.
  • A comparable high-throughput synthesis route for sodium-ion battery cathodes is lacking.
  • The Na-Fe-Mn-O system is of significant interest for sodium-ion battery applications.

Purpose of the Study:

  • To develop a rapid, combinatorial synthesis method for sodium-ion cathode materials.
  • To evaluate the effectiveness of a sol-gel method compared to coprecipitation for phase-pure synthesis.
  • To demonstrate the electrochemical viability of combinatorial samples for materials screening.

Main Methods:

  • Development of a sol-gel synthesis route for milligram-scale powder samples.
  • Synthesis of materials within the Na-Fe-Mn-O pseudoternary system.
  • Electrochemical testing of synthesized materials using a combinatorial cell setup.

Main Results:

  • Hundreds of milligram-scale powder samples synthesized in 3 days.
  • Sol-gel method produced phase-pure Na2/3Fe1/2Mn1/2O2 and NaFe1/2Mn1/2O2, unlike coprecipitation.
  • Cyclic voltammograms of combinatorial samples matched literature data for bulk materials.

Conclusions:

  • The developed sol-gel method is effective for combinatorial synthesis of sodium-ion cathode materials.
  • This methodology enables efficient screening of complex ternary systems for battery applications.
  • The results indicate good scalability for gram and kilogram production.