Ampcera™ solid state electrolyte materials are used in all-solid-state Lithium batteries and other advanced lithium batteries. Compared to a liquid electrolytes, battery a solid electrolyte battery has the advantages of higher energy density (~2X), better safety, and long term stability. Commonly studied solid electrolyte materials include sulfide compounds (e.g. Argyrodite, LGPS, LPS, etc.), garnet structure oxides (e.g. LLZO with various dopants), NASICON-type phosphate glass ceramics (LAGP), oxynitrides (e.g. lithium phosphorus oxynitride or LIPON), and polymers (PEO). The lithium ionic conductivity of the inorganic solid electrolyte materials ranges from 10−4 S/cm up to 10−2 S/cm at room temperature. MSE Supplies also offers sodium beta alumina solid electrolyte powder.