🔋 Ni‐MOFs Mediated Ni 2+/4+ Balancing and Enhanced Metal–Oxygen Covalency Unlocks Fast and Stable Sodium Storage in High‐Entropy Layered Cathode
📝 کاتد لایهای پرآنتروپی مشتق از Ni-MOF با تنظیم نیکل فعال و کووالانسی Ni-O، ظرفیت ۱۳۰ میلیآمپرساعت بر گرم و پایداری چرخهای بالا در باتری سدیم فراهم میکند.
📚 Journal: Advanced Energy Materials #AdvancedEnergyMaterials
📅 Date: 2026-10-09
🔬 Research Article
💡 Novelty & Significance:
Ni-MOF precursors enable atomic-level control of active Ni²⁺ content and Ni–O covalency in high-entropy O3 cathodes. This balances capacity and stability, unlike conventional oxides with excess or insufficient Ni²⁺. The reinforced covalent network yields reversible phase transitions, thin CEI, fast Na⁺ kinetics, and stable cycling (~130 mAh g⁻¹, 92.6% ICE).
🔗 10.1002/aenm.71686
🏷 sodium-ion battery · high-entropy cathode · Ni-MOF · metal-oxygen covalency · layered oxide
Post #15097
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