Carbon Energy • Vol 6 • No 9
Sulfhydryl‐functionalized COF‐based electrolyte strengthens chemical affinity toward polysulfides in quasi‐solid‐state Li‐S batteries
April 2024 • Linnan Bi, Jie Xiao, Yaochen Song, Tianrui Sun, Mingkai Luo, Yi Wang, Peng Dong, Yingjie Zhang, Yao Yao, Jiaxuan Liao, Sizhe Wang, Shulei Chou
Abstract For lithium‐sulfur batteries (Li‐S batteries), a high‐content electrolyte typically can exacerbate the shuttle effect, while a lean electrolyte may lead to decreased Li‐ion conductivity and reduced catalytic conversion efficiency, so achieving an appropriate electrolyte‐to‐sulfur ratio (E/S ratio) is essential for improving the battery cycling efficiency. A quasi‐solid electrolyte (COF‐SH@PVDF‐HFP) with strong adsorption and high catalytic conversion was constructed for in situ covalent organic framework …