The Processing and Testing of Na (FM14) Ion Batteries
Faculty Mentor Information
Jiacheng Hu, Boise State University; and Cyrus Koroni, Boise State University
Presentation Date
7-15-2026
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.
The Processing and Testing of Na (FM14) Ion Batteries
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.