Enabling Ca plating and stripping by electrolyte manipulation in low-volatility solvents for Ca metal batteries

Abstract

Efficient Ca plating/stripping and the development of low-volatility electrolytes remain key challenges for the broad-scale application of Ca metal batteries. In this study, we demonstrate that CaBr₂ addition modifies the electrolyte environment, enabling highly reversible Ca plating/stripping in electrolytes based on low-volatility diglyme as a solvent previously considered nonfunctional.