🔋 Bulky Molecules Tailor Solvent Packing Fraction of Electrolytes for High‐Voltage Sodium‐Ion Battery

📝 حلال حجیم با محدودکردن چیدمان حلال، تشکیل جفت‌یون‌های تماسی و اینترفاز غنی از مواد معدنی را در باتری سدیم‌یون ولتاژ بالا تقویت می‌کند.

📚 Journal: Advanced Functional Materials #AdvancedFunctionalMaterials
📅 Date: 2026-10-15
🔬 Research Article

💡 Novelty & Significance:
This work reveals that bulky solvent molecules restrict solvent packing around Na+, quantified by fractal dimension, promoting anion-rich ion clusters and inorganic interphases. This suppresses electrolyte oxidation, enabling stable high-voltage sodium-ion batteries with 1407-cycle longevity and practical pouch cells exceeding 115 Wh kg−1, offering a molecular design principle for high-energy SIBs.

🔗 10.1002/adfm.79119

🏷 sodium-ion battery · electrolyte solvation · solvent packing · high-voltage · interphase