🔋 Engineering Residual Rock‐Salt Reconstruction through Near‐Surface Fluorine Regulation for Stable 4.6 V Cycling of Regenerated Spent Layered Oxide Cathodes
📝 این مقاله با تنظیم فلوئور در نزدیکی سطح، لایه سنگنمک باقیمانده را به فاز محافظ تبدیل کرده و پایداری چرخهای کاتد NCM بازیافتی را در ولتاژ بالا بهبود میدهد.
📚 Journal: Advanced Materials #AdvancedMaterials
📅 Date: 2026-10-05
🔬 Research Article
💡 Novelty & Significance:
This work uniquely converts residual rock-salt reconstruction on spent NCM cathodes into a protective F-enriched interphase via molten-salt relithiation and fluorine treatment. It enables stable 4.6 V cycling (80.28% retention after 400 cycles) by strengthening Ni─O bonds and raising oxygen-vacancy formation energy, offering a high-value upcycling route for spent layered oxide cathodes.
🔗 10.1002/adma.75244
🏷 spent NCM cathode · fluorine regulation · rock-salt interphase · high-voltage cycling · direct regeneration
Post #14832
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