pouch-type cell employing the GPE exhibits superior capacity retention at 70 °C, markedly outperforming a conventional liquid-electrolyte cell. Furthermore, the GPE provides enhanced safety, as evidenced by stable open-circuit voltage at 150 °C and reduced flammability. These results demonstrate that the SiO-PETA-based GPE effectively suppresses electrolyte and electrode degradation, enabling stable LIB operation at high temperatures.
Kim et al. (2026) studied this question.