EV batteries could keep 96% power after 1,300 cycles with silver tech

Researchers from Korea University have developed a novel silver-ion coating technology that significantly enhances the lifespan and safety of lithium-metal batteries, a promising next-generation energy storage solution. This ultrathin coating prevents the formation of dendrites—hazardous, tree-like lithium structures that cause short circuits and battery failures—by promoting uniform lithium deposition on the electrode. The method involves alternating layers of silver ions and trithioisocyanuric acid (TCA) applied via a simple, room-temperature solution process without complex synthesis or high-temperature treatments. During battery operation, silver ions convert into nanoparticles that guide even lithium growth, while TCA forms a stable matrix preventing surface damage. Laboratory tests demonstrated that batteries using this coating maintained over 96% capacity after 1,300 charge-discharge cycles and operated stably for more than 2,000 hours, marking a significant improvement in cycling stability and safety. The researchers emphasize that this technology addresses the critical challenge of dendrite formation, which has hindered the