What question did this study set out to answer?

To evaluate the performance and safety of siloxy-functionalized gel polymer electrolytes in lithium-ion batteries at high temperatures.

May 7, 2026ACS Applied Materials & Interfaces0 citations

Siloxy-Functionalized Gel Polymer Electrolyte for High-Temperature Stable Lithium-Ion Batteries

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JKJi-Wan KimHanyang University SKSungmo KooHanyang University JSJusung SongHanyang University

Key Points

To evaluate the performance and safety of siloxy-functionalized gel polymer electrolytes in lithium-ion batteries at high temperatures.
Utilized pouch-type cells with gel polymer electrolytes (GPE) for testing at 70 °C and 150 °C.
Compared the performance of GPE against conventional liquid-electrolyte cells for capacity retention and safety measures.
The GPE exhibited superior capacity retention at 70 °C compared to liquid-electrolyte cells.
Stable open-circuit voltage maintained at 150 °C, demonstrating enhanced safety of the GPE.
Flammability of the GPE is significantly reduced, indicating better operational safety.

Abstract

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.

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Cite This Study

Kim et al. (Mon,) studied this question.

synapsesocial.com/papers/69fc2b158b49bacb8b347714 https://doi.org/https://doi.org/10.1021/acsami.6c03585

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