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説明:

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.

権利情報:

• Creative Commons BY Attribution 4.0 International
  

キーワード: Mg battery, Diffusion, Flux, Electrodeposition, Surface morphology

刊行年月日: 2025-07-15

出版者: Elsevier BV

掲載誌:

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

研究助成金:

• 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

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.1016/j.mtcomm.2025.113325

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更新時刻: 2025-07-23 08:30:31 +0900

MDRでの公開時刻: 2025-07-23 08:23:13 +0900