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Pretreatment-Derived LiF/LiPO2F2 Species Enable Robust High-Voltage NCM811 Cathode Interphases
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DOI：10.1016/j.ensm.2026.105448.png)
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Abstract
En 中文
• Carbonate-compatible pretreatment generates nano-LiF/LiPO2F2 species. • DFEC regulates Li+-PO2F2- association and LiF interfacial stabilization. • A LiF/LixPOyFz-rich CEI improves high-voltage NCM811 kinetics. • 1 Ah pouch cells retain 87.7% capacity after 1000 cycles at 4.6 V.
Keywords:
lithium-ion batteries
electrolyte strategy
Cathode-electrolyte interphase
Highenergy-density
electrode interface
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20.2
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