EV battery safety upgrades! Industry leaders CATL and BYD now use polysilazane (PSZ) coatings to equip battery packs with ultra-thin anti-corrosion "armor." This inorganic-organic hybrid material forms a dense protective layer on metal casings, enduring salt spray corrosion for 3,000+ hours while offering superior insulation and heat resistance (>400°C). Experts from Ningbo Institute of Materials Technology note it resolves lightweighting-longevity conflicts, cutting costs by 15% vs. traditional methods. Mass adoption in mainstream EVs is expected by 2025.
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