Crosslinked polymer films, formed via sol–gel and UV photocrosslinking, serve as gel polymer electrolytes (GPEs) in lithium‐ion batteries. Combining polyurethane acrylate (PUA), polyurethane methacrylate (PUMA), pentaerythritol tetrakis (3‐mercaptopropionate) (PETMP), and 3‐mercaptopropyl trimetoxysilane (MPTMS) yields flexible membranes, enhancing stability and liquid electrolyte compatibility. The resulting GPE displays higher ionic conductivity (1.46 × 10−3 S cm−1) than Celgrad2500, with PUA‐PUMA's hydrophilicity and PETMP's SH groups preventing leakage. GPPF1, the developed GPE, offers improved ionic conductivity, a stable electrochemical window up to 3.8 V, and heightened safety for versatile energy storage systems.

中文翻译：

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用于锂离子电池的硫醇-烯光交联PUA-PUMA基柔性凝胶聚合物电解质

通过溶胶-凝胶和紫外光交联形成的交联聚合物薄膜在锂离子电池中用作凝胶聚合物电解质（GPE）。将聚氨酯丙烯酸酯 (PUA)、聚氨酯甲基丙烯酸酯 (PUMA)、季戊四醇四（3-巯基丙酸酯）(PETMP) 和 3-巯基丙基三甲氧基硅烷 (MPTMS) 组合在一起可形成柔性膜，从而增强稳定性和液体电解质兼容性。由此产生的 GPE 显示出更高的离子电导率 (1.46 × 10−3厘米−1）优于 Celgrad2500，PUA-PUMA 的亲水性和 PETMP 的 SH 基团可防止渗漏。 GPPF1 是开发的 GPE，可提高离子电导率、高达 3.8 V 的稳定电化学窗口，并提高多功能储能系统的安全性。