🔋 Rational Solvent Fluorination Design for Solvation Regulation Enabling Stable Interfaces in High‐Voltage Li‐Ion Batteries
📝 طراحی حلال فلوئوردار متقارن با دو گروه تریفلورومتیل در DEC ساختار سلوشن غنی از آنیون و FEC را تنظیم کرده و پایداری کاتد غنی از Ni را در 4.6 ولت بهبود میدهد.
📚 Journal: Advanced Energy Materials #AdvancedEnergyMaterials
📅 Date: 2026-10-13
🔬 Research Article
💡 Novelty & Significance:
This work reveals how the number and position of trifluoromethyl groups in DEC-based solvents govern Li+ solvation structure. Symmetric dual-substitution enriches anion/FEC solvation, forming robust interphases. This enables Ni-rich NCM811 cathodes (10.5 mg cm⁻²) to retain 80% capacity after 300 cycles at 4.6 V, offering rational design principles for fluorinated high-voltage electrolytes.
🔗 10.1002/aenm.71673
🏷 fluorinated solvent · solvation structure · high-voltage LIB · cathode-electrolyte interphase · LiNi0.8Co0.1Mn0.1O2
Post #15212
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