DGIST’s triple-layer solid polymer electrolyte battery improves safety, efficiency, and durability, addressing dendrite issues while retaining 87.9% performance after 1,000 cycles. It holds promise for diverse applications, including electric vehicles and energy storage systems.
A research team from DGIST’s Division of Energy & Environmental Technology, led by Principal Researcher Kim Jae-hyun, has developed a lithium metal battery using a “triple-layer solid polymer electrolyte.” This innovation significantly improves fire safety while extending the battery’s lifespan, making it a promising solution for applications in electric vehicles and large-scale energy storage systems.
Conventional solid polymer electrolyte batteries face challenges due to structural limitations that impede optimal contact between electrodes. These limitations fail to address the issue of “dendrites”—tree-like lithium formations that occur during repeated charging and discharging cycles. Dendrites pose a critical safety risk, as their irregular growth can damage battery connections and lead to fires or explosions.