A Focused Review on Interhalogen Technology for High‐Performance Aqueous Batteries

The focused review summarizes interhalogen technologies in batteries. It highlights their effectiveness for better electrochemical performance. This review advocates for recognizing this area as a distinct research branch. Key challenges, such as electrolyte decomposition and halogen diffusion loss, are also outlined. Addressing these is crucial for the practical use of these advanced battery designs.

Abstract

Interhalogen chemistry, where distinct halogen species bond with each other, is a promising strategy to significantly enhance the performance of various battery systems. However, despite demonstrating unique electrochemical advantages and potential for advancing battery design, interhalogen technology often remains broadly categorized within halogen electrochemistry without receiving specific and focused attention. This review summarizes the (hetero)interhalogen technologies employed in electrochemical batteries, highlighting their effectiveness and exploring their potential for further innovation. This is argued that this area warrants dedicated research to broaden this understanding and accelerate battery development. Additionally, the review outlines key challenges associated with the current interhalogen-based battery designs that require careful consideration for practical deployment.