🔋 A Phosphazene‐Polyphenol Network Binder Enables Catalytic Polysulfide Conversion and Intrinsic Flame Retardancy for Practical Lithium‐Sulfur Batteries

📝 بایندر شبکه‌ای فسفازن-پلی‌فنول با سایت‌های فعال ناهمگون، تبدیل پلی‌سولفید و بازدارندگی شعله ذاتی را برای باتری‌های Li-S عملی فراهم می‌کند.

📚 Journal: Advanced Functional Materials #AdvancedFunctionalMaterials
📅 Date: 2026-10-09
🔬 Research Article

💡 Novelty & Significance:
The novelty lies in a cross-linked phosphazene-polyphenol binder (HTP) integrating tannic acid, polyethyleneimine, and a phosphorus/nitrogen-rich framework. It simultaneously catalyzes polysulfide conversion, accommodates cathode swelling, and imparts intrinsic flame retardancy. Significance: exceptional cycling stability (0.025% fade/cycle over 2000 cycles), high areal capacity (7.5 mAh cm⁻²) under practical conditions, offering a multifunctional binder paradigm for safe, high-energy Li-S batteries.

🔗 10.1002/adfm.78936

🏷 lithium-sulfur battery · phosphazene binder · polysulfide conversion · flame retardancy · tannic acid