Modulating Transient Solvation for Ultrahigh‐Rate Sodium Metal Batteries

(NVP) cells, achieving a capacity retention of 90.2% after 7000 cycles even at 20C. Furthermore, the Na||NVP cells with a limited sodium excess (N/P ratio = 1.7) retain 92.6% capacity retention after 5500 cycles at 5C, compared to 700 cycles with CPME-absent electrolyte. This work provides critical insights into instructive electrolyte design principles for fast-charging battery technologies.