Mn3O4 Nanostructures as Cathodes for High-Energy-Density Zinc-lon Batteries
Category
Sciences and Technology
Department
Material Science
Student Status
Graduate
Research Advisor
Dr. Ram Gupta
Document Type
Event
Location
Student Center Ballroom
Start Date
10-4-2025 2:00 PM
End Date
10-4-2025 4:00 PM
Description
Zinc-ion batteries (ZIBs) are considered advanced battery technology to replace lithium-ion batteries because they are cost-effective, safe, and environmentally friendly energy storage systems. However, finding suitable cathode materials is a challenging task for ZIBs. In this study, pristine Mn3O4, nanostructures were prepared using the microwave-assisted solvothermal method and utilized as a cathode for ZIBs. The phase and crystalline properties were analyzed using X-ray diffraction (XRD). Scanning electron microscopy (SEM) was utilized to examine the morphology of the prepared samples. The electrochemical performance was evaluated using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and charge-discharge cycling tests. The CV data measured indicated enhanced redox kinetics of the Mn3O, cathode, signifying its strong charge storage capability. As a result, the Mn3O4 cathode exhibits a high initial charge/discharge capacity of 223/173 mAh/g at a current density of 100 mA/g with a Coulombic efficiency of 76%. After 100 cycles, the Mn3O4 cathode showed a high reversible capacity of 221 mAh/g. The improved electrochemical properties are attributed to structural stabilization and enhanced ion transport. These findings highlight the potential applications of Mn3O4, as an efficient cathode material for next-generation ZIBs, contributing to the development of high-capacity sustainable energy storage solutions.
Mn3O4 Nanostructures as Cathodes for High-Energy-Density Zinc-lon Batteries
Student Center Ballroom
Zinc-ion batteries (ZIBs) are considered advanced battery technology to replace lithium-ion batteries because they are cost-effective, safe, and environmentally friendly energy storage systems. However, finding suitable cathode materials is a challenging task for ZIBs. In this study, pristine Mn3O4, nanostructures were prepared using the microwave-assisted solvothermal method and utilized as a cathode for ZIBs. The phase and crystalline properties were analyzed using X-ray diffraction (XRD). Scanning electron microscopy (SEM) was utilized to examine the morphology of the prepared samples. The electrochemical performance was evaluated using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and charge-discharge cycling tests. The CV data measured indicated enhanced redox kinetics of the Mn3O, cathode, signifying its strong charge storage capability. As a result, the Mn3O4 cathode exhibits a high initial charge/discharge capacity of 223/173 mAh/g at a current density of 100 mA/g with a Coulombic efficiency of 76%. After 100 cycles, the Mn3O4 cathode showed a high reversible capacity of 221 mAh/g. The improved electrochemical properties are attributed to structural stabilization and enhanced ion transport. These findings highlight the potential applications of Mn3O4, as an efficient cathode material for next-generation ZIBs, contributing to the development of high-capacity sustainable energy storage solutions.
