Graphitic Pyropolymer-Based Nanosubstrate for Rechargeable Mg Metal Batteries
발표자
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초록
내용
The high volumetric energy density of rechargeable Mg batteries (RMBs) gives them a competitive advantage over current Li ion batteries, which originates from the high volumetric capacity (∼3833 mA h cm−3) of bivalent Mg metal anodes (MMAs). On the other hand, despite their importance, there are few reports on research strategies to improve the electrochemical performance of MMAs. In this study, we demonstrated that a well-designed graphitic pyropolymer-based nanosubstrate (GP-NS) plays an important role in the electrochemical Mg metal deposition/stripping performance of MMAs for RMBs. The performance of the fabricated GP-NS greatly surpassed those of conventional metal substrate-based anodes. In a galvanostatic Mg metal deposition process, the initial nucleation overpotential and plateau overpotential were reduced significantly with GP-NSs compared to those of the Mo-Anode.