Facile synthesis of three-dimensional conducting scaffold with magnesiophilic decorations toward non-dendritic Mg-metal batteries
- Authors
- Kwak, Jin Hwan; Shin, Sunghee; Jeoun, Yunseo; Lee, Yongheum; Yu, Seungho; Yun, Young Soo; Sung, Yung-Eun; Yu, Seung-Ho; Lim, Hee-Dae
- Issue Date
- 1-9월-2022
- Publisher
- ELSEVIER
- Keywords
- Cu scaffold; Dendrite; Magnesium; Magnesiophilic seeds; Magnesium metal battery
- Citation
- JOURNAL OF POWER SOURCES, v.541
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF POWER SOURCES
- Volume
- 541
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/142721
- DOI
- 10.1016/j.jpowsour.2022.231724
- ISSN
- 0378-7753
- Abstract
- Despite the substantial efforts aimed at suppressing metallic dendrite growth in Li-metal batteries, Mg-metal dendrite growth has thus far received relatively little attention, and the formation of Mg dendrites has recently been shown to be a critical limitation for the practical advancement of rechargeable Mg-ion batteries. The development of an appropriate anode to efficiently accommodate Mg deposits is thus key to overcome this limitation. Here, we report the unique design of Ag-decorated Cu foam (ACF) consisting of a porous Cu scaffold decorated with magnesiophilic Ag nanoparticles (NPs) on its surface through a facile one-step synthesis process. For the first time, we demonstrate the strong affinity of Ag atoms to the electrochemically deposited Mg; magnesiophilicity is then adopted to design an efficient anode host for Mg-metal batteries and suppress the Mg dendritic formation. As a result, the ACF exhibits a greatly decreased nucleation overpotential with a longer cycle life compared with those of conventional substrates. In the absence of magnesiophilic Ag nano-seeds, non-uniform and top-oriented Mg depositions are observed; in contrast, the ACF helps contribute to an even deposition of the electrochemically formed Mg over the entire active surface, resulting in improved electrochemical performance.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.