Li4 Si4 N4 O4

Li₄Si₄N₄O₄ is an oxynitride ceramic compound combining lithium, silicon, nitrogen, and oxygen in a single phase structure. This material belongs to the family of advanced ceramics engineered for high-temperature and electrical applications, though it remains primarily in research and development rather than established commercial production. The oxynitride class offers potential advantages over traditional nitrides and oxides by tuning thermal, mechanical, and ionic transport properties—making it of interest for next-generation solid-state electrolytes, refractory coatings, and high-temperature structural applications where lithium mobility or enhanced mechanical performance is valuable.