化学所「国家杰青」曹安民最新AM丨AlF₃纳米壳稳定高压固态电池！

TL;DR - An Advanced Materials paper introduces a scalable solution-based AlF₃ nanoshell that stabilizes nickel-rich NCM811 cathodes against chloride-electrolyte degradation in high-voltage all-solid-state batteries.

• The conformal, roughly 6 nm AlF₃ coating is produced via an (NH₄)₃AlF₆ precursor and thermal conversion, avoiding costly atomic layer deposition.
• Optimized cathodes delivered 217.2 mAh g⁻¹ initial capacity, 90.6% initial Coulombic efficiency, and 97% capacity retention after 100 cycles.
• The coating suppresses NCM811 rock-salt reconstruction and Li₃InCl₆ oxidation, limiting interfacial resistance growth.
• Modified cells supported operation up to 4.8 V, 3 C rates, 50 °C, and more than 1,000 cycles under reported conditions.