基于复合型固态电解质无机相填料材料的研究进展

Research Progress of Inorganic Solid Phase Filler Materials Based on Composite Solid Electrolyte

在包含锂盐和聚合物的固态聚合物电解质体系中,无机纳米材料通常用作填充材料,以改善电解质的电化学性能和结构稳定性。然而,这种复合型固态电解质通常具有低室温离子电导率。因此,无机材料的种类和几何形状的优化是进一步提高复合电解质导电性的关键。本文对现有的无机填料种类及其衍生物进行简单介绍,分析了在复合型固态电解质中离子传导原理,综述了无机材料几何形状优化的方法,并对未来的前景进行了展望。

In the solid polymer electrolyte systems containing lithium salts and polymers,inorganic nanomaterials were usually used as fillers to improve the electrochemical performance and structural stability of the electrolyte.However,this composite solid electrolyte usually had low ionic conductivity at room temperature.Therefore,the optimization of the types and geometric shapes of inorganic materials was the key to further improve the conductivity of the composite electrolyte.This paper briefly introduced the types of existing inorganic fillers and their derivatives and analyzed the principle of ion conduction in composite solid electrolytes.Meanwhile,the methods of optimizing the geometric shape of inorganic materials were summarized and the future was prospected.