Fire‐Safe Hierarchical Solid Polymer Electrolytes Enabled by Dual‐Functional Microcapsules for Lithium Metal Batteries
ABSTRACT Lithium metal batteries offer high energy density but suffer from severe safety risks associated with dendrite growth and flammable electrolytes, which can lead to thermal runaway and combustion. Although solid‐state electrolytes improve thermal stability, they primarily rely on intrinsic nonflammability and r...