Download all files (4.55 MB)

Collection

Citation

Description:

This study investigates the behavior of Mg electrodeposition on non-uniform Mg metal surfaces formed through several discharge/charge cycles using simulations based on the Newman model followed by experimental validation. The simulations revealed that the surface morphology of the Mg metal negative electrode affected the distribution of the Mg2+ ion concentration, flux, and current density in the electrolyte. Uniform electrodeposition can be achieved by maintaining a higher concentration of Mg2+ ions in the pits formed on the surface, for example by ensuring a higher Mg2+ ion diffusion coefficient, a smaller current density, and larger but shallower pits. The experimental results support these findings, providing a strategy to achieve uniform Mg electrodeposition and optimal design of the electrolyte.

Rights:

• Creative Commons BY Attribution 4.0 International
  

Keyword: Mg battery, Diffusion, Flux, Electrodeposition, Surface morphology

Date published: 2025-07-15

Publisher: Elsevier BV

Journal:

• Materials Today Communications (ISSN: 23524928) vol. 48 113325

Funding:

• Japan Science and Technology Agency JPMJGX23S1
• Japan Society for the Promotion of Science 23H01738
• Japan Society for the Promotion of Science 23H05452
• Japan Society for the Promotion of Science 23K17812

Manuscript type: Publisher's version (Version of record)

MDR DOI:

First published URL: https://doi.org/10.1016/j.mtcomm.2025.113325

Related item:

Other identifier(s):

Contact agent:

Updated at: 2025-07-23 08:30:31 +0900

Published on MDR: 2025-07-23 08:23:13 +0900