As the quest for longer range in new energy vehicles intensifies, higher energy density solid-state batteries are seen as the "holy grail" of next-generation power batteries. However, interface stability and mass production yield remain unsolved challenges. Recent breakthroughs in materials science bring good news: Polysilazane (PSZ), as an advanced inorganic-organic hybrid material, is being rapidly adopted by leading global battery manufacturers (like CATL, BYD) for critical interface coating R&D due to its exceptional high-temperature stability (>1000°C), superior electrical insulation, and dense film-forming properties.

A PSZ coating can construct an ultra-thin, uniform, and robust "buffer layer" and "insulation layer" between the solid electrolyte and electrode materials. This nanoscale "armor" effectively suppresses interfacial side reactions, prevents lithium dendrite penetration, and significantly enhances battery safety and cycle life under extreme conditions. Simultaneously, its well-designed ion conductivity ensures battery efficiency. Industry experts point out that if PSZ coating processes mature and achieve mass production, it will greatly accelerate the commercialization of highly safe, long-life solid-state batteries, addressing consumers' core pain points of range and safety.