2026 Undergraduate Research Showcase

The Processing and Testing of Na (FM14) Ion Batteries

Document Type

Student Presentation

Presentation Date

4-24-2026

Faculty Sponsor

Jiacheng Hu and Cyrus Koroni

Abstract

The demands for sustainable energy systems underscores the importance in developing sodium-ion batteries (SIBs) with earth abundant raw materials, enhanced energy density, prolonged lifespan, and reduced cost. Among potential candidates for such advancements, Na0.67Fe0.2Mn0.8O2 (FM14) positive electrode materials are attractive due to their notable high theoretical specific capacity, abundant Na/Fe/Mn resources, and tunable chemistry. For this project, we successfully synthesized single crystal FM14 materials via a molten salt method at different temperatures (750 - 1000°C) using multiple molten salt sources. Through our experimentation, we found that synthesizing FM14 at 900 C using NaCl produced the best capacity and stability during long term cycling This work was also compared with the electrochemical performance of conventionally synthesized coprecipitated polycrystalline FM14 Single crystal FM14 had the improved capacity and kinetics than polycrystalline FM14 due to less particle boundaries and stable structure. This work proves the potential for using sodium-ion batteries to be used in larger scale energy storage.

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