As NEVs gain popularity, thermal runaway risks in power batteries are under scrutiny. Polysilazane (PSZ), an advanced protective material, is emerging as a new defense line. Its unique molecular structure undergoes ceramification at high temperatures (>1000°C), forming a dense, heat-resistant barrier that delays or prevents thermal propagation between battery cells—buying crucial escape time.
Compared to traditional solutions, PSZ coatings are thinner, offer stronger adhesion, and preserve battery energy density. Industry leaders like CATL and BYD are accelerating application tests. Experts note that cost-effective maturation of PSZ technology will be pivotal for next-gen high-safety battery packs, boosting consumer confidence.
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