Alkaline-Earth Metal Batteries

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Alkaline-Earth Metal Batteries

Rechargeable batteries employing alkaline-earth metal anodes (magnesium, calcium) represent an emerging class of electrochemical energy storage technologies that combine cost-effectiveness, sustainability and enhanced safety. In contrast to conventional lithium metal anodes, alkaline-earth metals are less susceptible to dendrite formation during electrodeposition. These advantages position them as highly promising candidates for grid storage and home storage applications.

Our research addresses the fundamental challenge in developing practical Mg/Ca battery systems, with particular emphasis on charge transport limitations arising from the high charge density and strong polarizing effects of divalent cations. Through multiscale material design strategies, we precisely tailor the electronic and molecular structures of cathode materials and optimize interfacial reaction dynamics at electrode-electrolyte interfaces. Our approach focuses on weakening cation-host interactions while maintaining structural stability, thereby significantly improving charge transfer kinetics and electrochemical reversibility.

The overarching goal of our work is to establish design principles for efficient multivalent ion storage, enabling the development of high-performance cathode/electrolyte materials and high-energy, long-lasting alkaline-earth metal batteries.




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