Abstract Solid-state lithium batteries are highly promising for energy storage applications because of their high energy density and good safety characteristics. To promote the commercial progress of solid-state lithium batteries, solutions are desirable for two limitations of the technology: the low ionic conductivity of solid electrolytes and interfacial compatibility between electrolyte and electrodes. Here, we develop a hybrid solid electrolyte composed of Li7La3Zr2O12, ionic liquid, LiTFSI, and PVDF-HFP. Because its components are nonflammable, the hybrid solid electrolyte is likewise completely nonflammable. After pressing, the thickness of the hybrid solid electrolyte can be adjusted. The phase conversion of β-phase PVDF-HFP reduces the barrier of ionic conduction because of enhanced organic–inorganic interfacial ion transfer. More importantly, the ionic liquid stored in the hybrid solid electrolyte not only enhances the conductivity of the electrolyte but also solves the interfacial compatibility issue between solid electrolytes and conventional porous electrodes.

中文翻译：

---

用于与传统多孔电极兼容的固态锂电池的不可燃混合固体电解质膜

摘要 固态锂电池因其高能量密度和良好的安全特性而在储能应用中极具前景。为了促进固态锂电池的商业进步，需要解决该技术的两个局限性：固体电解质的低离子电导率和电解质与电极之间的界面兼容性。在这里，我们开发了一种由 Li7La3Zr2O12、离子液体、LiTFSI 和 PVDF-HFP 组成的混合固体电解质。由于其成分不可燃，混合固体电解质同样完全不可燃。压制后，可以调整混合固体电解质的厚度。由于增强的有机-无机界面离子转移，β相 PVDF-HFP 的相转换降低了离子传导的障碍。