Mobilne Wiadomości: 11 wrzesień 2025 - 2 październik 2025

December 13, 2025, 10:52 AM EST. Solid-state sodium-ion batteries could dramatically improve EV safety and reduce costs, say researchers who report a solid electrolyte with sulfur and chlorine that enhances conductivity while staying stable. The team demonstrated a Coulombic efficiency of 99.26% after 600 charge-discharge cycles at 0.1C, approaching the performance of lithium batteries. Compared with lithium-ion, Na-ion offers lower thermal runaway risk due to more stable cathodes and less electrochemical potential, though energy density remains lower. The solid electrolyte is non-flammable, addressing a key safety concern with liquid electrolytes. The work, published in Advanced Materials and Advanced Functional Materials, used synchrotron analysis at the Canadian Light Source to observe ion movement, underscoring scale-up and long lifecycle challenges before deployment in EVs or grids.