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Protected by Google reCAPTCHA v3.•Privacy•Terms Key Findings in This Report
• A universal brine quenching strategy constructs a dual-layer surface structure (Y-doped layered inner layer + disordered rock-salt outer layer) on lithium-rich layered oxides.
• Y-doping strengthens Y–O bonds, raises the oxygen evolution energy barrier, and stabilizes lattice oxygen.
• The engineered surface reduces oxygen release, suppresses structural degradation, and enhances Li+ diffusion kinetics.
• Y-quenched LLO delivers high capacity (283 mAh/g at 0.1C, 223 mAh/g at 1C), 91.2% capacity retention after 300 cycles, and reduced voltage decay (0.76 mV/cycle vs 1.16 mV/cycle).