“…Several approaches have been reported to date, including the use of polymers and ionic salts as well as formulations that include an inorganic solid conductor. , Futhermore, in ASSBs, the solid electrolyte membrane is required to act as both an electronic insulator and an ionic conductor, supporting highly stable lithium metal cycling, while avoiding lithium dendrite formation. A number of solid electrolyte options have been considered for ASSBs, including ceramic conductors (such as LLZO, − LATP, − sulfides, , oxyhalides, , etc. ), deep eutectic solvent (DES)-based self-healing polymer electrolytes, − solid polymer electrolytes (SPEs), and composites (e.g., polymers combined with ceramics). − In the class of SPEs, there are also several subclasses, for example SPEs consisting of a binary mixture of a polymer host and a lithium salt; − polymers containing a low molecular weight plasticizer in addition to the lithium salt to enhance ion mobility; − ionogels, where high content ionic liquid-based electrolytes are incorporated into a polymer network structure; − and ternary systems, where the major components are the polymer and lithium salt, and ionic liquid (IL) is also included to further enhance conductivity …”