All solid state batteries (ASSB) are competitive alternative to conventional liquid electrolyte secondary batteries
because of their unique physicochemical properties including high thermal stability and rigidity of the electrolyte layer.
In particular, sulfide based ASSBs are thought to be promising for making large sizes cell due to their high ionic conductivity
and pliability of the material. In this talk, we will present our efforts on the development of ASSBs and their possibilities
in electronic and vehicular applications.