“Electrodeposition of Zn-Mn for Batteries”
Nishat Tasnim Nimmu
Abstract
Zinc-ion batteries (ZIBs) offer a promising energy storage solution due to their safety, high energy
density, affordability, and eco-friendliness. However, ZIBs face challenges with anode stability, notably
dendrite growth and corrosion, which reduce efficiency. To address these issues, this study investigates
the electrodeposition of a Zn-Mn alloy, a composition that enhances anode stability compared to pure Zn
by improving corrosion resistance and mitigating dendrite formation. Using a rotating cylinder Hull cell
(RHC), Zn-Mn was deposited on a copper electrode, with variations in electrolyte pH and Mn
concentration to examine their impact on porosity—a key factor in electrode performance. The porosity
created by H2 evolution during deposition promotes ion transfer but also risks dendrite growth, which
can lead to short circuits. This study characterizes the Zn-Mn deposits, analyzes the partial current
densities, and evaluates deposition efficiency. Future work includes testing Zn-Mn under real battery
conditions to explore the impact of porosity on durability.
Monday, 11/18/2024 at 4:30 pm
CAMP 176
Short bio
Nishat Tasnim Nimmu is a Master’s student in the Department of Chemical Engineering at Clarkson
University who joined the department in Spring 2024. She is supervised by Prof. Elizabeth Podlaha-
Murphy. Her research work is primarily focused on electrodeposition involving various aspects of
electrochemistry and corrosion of metals.