Li5 Cu1 S1 O2

Li5Cu1S1O2 is an experimental mixed-anion semiconductor compound combining lithium, copper, sulfur, and oxygen in a single phase—a material class of significant interest for solid-state energy storage and electrochemical applications. This compound belongs to the family of lithium-based oxysulfides, which are being researched as potential solid electrolyte materials and cathode-active compounds for next-generation lithium-ion batteries seeking higher ionic conductivity and improved thermal stability compared to conventional liquid electrolytes. While still largely in the research phase, oxysulfide semiconductors like this are notable because they offer tunable electronic and ionic properties through compositional variation, making them candidates for solid-state battery development and other advanced electrochemical devices where stability and charge-carrier mobility are critical.