NOVEL LITHIUM BISMUTH OXIDE COMPOUNDS AS LI SUPER-IONIC CONDUCTOR, SOLID ELECTROLYTE, AND COATING LAYER FOR LI METAL BATTERY AND LI-ION BATTERY

Solid-state lithium ion electrolytes of lithium potassium bismuth oxide based compounds are provided which contain an anionic framework capable of conducting lithium ions. Materials of specific formulae are provided and methods to alter the materials with inclusion of aliovalent ions shown. Lithium batteries containing the composite lithium ion electrolytes are provided. Electrodes containing the lithium borate based materials coated on the active material and batteries containing the electrodes are also provided.