Development of High-Capacity Periodate Battery with Three-Dimensional-Printed Casing Accommodating Replaceable...

Area of Science:

• Electrochemistry
• Materials Science
• Inorganic Chemistry

Background:

• Development of advanced energy storage solutions is crucial.
• Novel cathode materials are needed to improve battery performance.
• Iron-based compounds offer potential for electrochemical applications.

Purpose of the Study:

• To develop a novel battery using an iron(III) periodate complex cathode and a zinc anode.
• To investigate the electrochemical properties and performance of this new battery system.
• To explore a multielectron process for enhanced cathode specific capacity.

Main Methods:

• Synthesis of the iron(III) periodate complex [H7Fe4(IO4)3O8] via precipitation.
• Fabrication of a stable, flexible electrode using the periodate complex, carbon nanotubes, and polytetrafluoroethylene.
• Assembly and testing of a battery with a zinc anode and acetic acid electrolyte.
• Design and presentation of a 3D-printed reserve battery with replaceable electrodes.

Main Results:

• The novel iron(III) periodate complex was successfully synthesized and utilized as a battery cathode for the first time.
• The developed battery demonstrated a high specific capacity of up to 300 mA h g⁻¹.
• A multielectron process involving the valence change of iodine from +7 to 0 (I2) was shown to significantly enhance cathode specific capacity.
• A functional 3D-printed reserve battery design was presented.

Conclusions:

• The iron(III) periodate complex is a promising material for high-capacity battery cathodes.
• Multielectron redox processes offer a viable strategy for boosting battery energy density.
• The developed 3D-printed reserve battery design provides a platform for flexible and replaceable energy storage systems.