LITHIUM ANTIMONIDE SULFIDE AS LI CONDUCTIVE COMPOUNDS FOR THE APPLICATION OF THICK COATING LAYER IN LI METAL BATTERY AND SOLID ELECTROLYTE IN ALL-SOLID-STATE LITHIUM BATTERIES

Lithium antimony sulfide compounds having crystal structure of a space group selected from P4/mmm, P2, P222, Pmma, P2/c and Pnma and having a lithium ion conductivity of at least 10S/cm are described. The materials are useful as coatings of lithium metal anodes to prevent dendrite formation and to provide solid-state lithium batteries having high energy density.