| 초록 |
The worldwide demands for sustainable energy sources and eco-friendly energy storage systems have been increasing, lithium-ion batteries (LiBs) are widely used for various applications such as smart devices, electric vehicles and energy storage systems. To meet the advancement of LiBs technology, various groups studied aging mechanism and degradation models in a battery. Among the degradation mechanism, hydrofluoric acid (HF) generation in the electrolyte due to decomposition reaction between moisture and LiPF6 salt (LiPF6→ LiF + PF5, PF5 + H2O → 2HF + PF3O) may influence on the battery performance. For this reason, the cell should be assembled in a dry room, which is expensive to maintain. I will present a functional separator membrane based on the HF scavenging ability for achieving high energy LIBs used for electrical vehicles, and I manufactured a pouch cell in the ambient air for the first time, the humidity is about 46%. I can see the possible to produce in the air system. |
