Polymer/garnet solid oxide composite electrolyte has been regarded as a promising solution for solid-state lithium metal battery. It has many advantages such as higher flexibility, lower density, relatively higher ionic conductivity and better contact with electrodes as compared to pure oxide electrolytes and pure polymer electrolytes. In this work, we report a poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) / Li_6.4La₃Zr_1.4Ta_0.6O₁₂ (LLZTO) composite electrolyte with a facile synthesis route and all commercially available raw materials. This hybrid electrolyte exhibits overall outstanding properties, including wide electrochemical stability window (~5 V), superior mechanical properties with tensile strength over 13 MPa and Young's Modulus >50 MPa, relatively good room temperature ionic conductivity (3.2 × 10⁻⁴ S.cm⁻¹) and good electrochemical performance (~150 mAh g⁻¹ at 0.1C and 99% coulombic efficiency after 50 cycles).

聚合物/石榴石固体氧化物复合电解质被认为是一种很有前途的固态锂金属电池解决方案。与纯氧化物电解质和纯聚合物电解质相比，它具有许多优点，例如更高的柔韧性、更低的密度、相对更高的离子电导率以及与电极更好的接触。在这项工作中，我们报告了聚（偏二氟乙烯-共六氟丙烯）（PVDF-HFP）/ Li _6.4 La ₃ Zr _1.4 Ta _0.6 O ₁₂(LLZTO) 复合电解质，具有简便的合成路线和所有市售原材料。这种混合电解质表现出整体优异的性能，包括宽电化学稳定性窗口（~5 V）、优异的机械性能，拉伸强度超过 13 MPa 和杨氏模量 > 50 MPa，相对良好的室温离子电导率（3.2 × 10 ^-4  S.cm ^-1 ) 和良好的电化学性能（0.1C 下~150 mAh g ^-1和 50 次循环后的库仑效率为 99%）。