In Situ Polymerization of 1,3-Dioxane in Solid-State Lithium Batteries: A Mini-Review of Recent Developments

Solid-state lithium-ion batteries with high energy density and high safety have become important research directions for next-generation electric vehicles and energy storage devices for smart grids. The developments of solid-state electrolytes with high room temperature lithium-ion conductivity, protective functions for the negative electrode, and excellent chemical/electrochemical stability are important research topics to promote the development of solid-state batteries. In situ polymerization of a 1,3-dioxane (DOL) electrolyte has become a research hotspot among many polymer electrolyte materials because of its relatively high room temperature conductivity, lower electrolyte/electrode solid-interface impedance, and other advantages. Based on the research results of the research group and the current related reported work, the study of in situ polymerization of DOL electrolytes systematically summarized and analyzed the problems and challenges faced by this type of electrolyte and finally discussed the possible research directions and development trends in the future. This targeted review article is immensely beneficial for the practical development and preparation of an in situ polymeric electrolyte.