Carbon nanotubes decorated with zinc oxide quantum dots enable high-efficiency lithium–sulfur batteries

Abstract

This work decorates carbon nanotubes (CNTs) with highly active zinc oxide (ZnO) quantum dots to form ZnO@CNT architectures. Such a “conductivity–polarity coupling” strategy efficiently rationalizes sulfur evolution procedures, leading to remarkable battery performance. We use minimal catalyst loading (quantum dot level) to control the battery performance outcomes, offering a promising pathway for advancing the practical deployment of lithium–sulfur batteries (LSBs).