Double-shell hollow particles (DSHPs) have attracted significant attention due to their diverse potential applications. DSHPs are usually obtained by multi-step sacrificial template method which is tedious and inefficient. In this work, a facile synthesis of silica DSHPs has been developed via a novel one-step template method, which is using single-hole hollow particles (SHHPs) as the templates. The shapes and internal structures of the DSHPs were determined by SEM and TEM, and the average diameters of inner and outer shells were about 0.6 and 1.6 μm, respectively. According to FTIR analyses, the compositions of silica DSHPs were identified as well. Furthermore, the silica DSHPs was applied to Li-ion batteries as a modifier of gel polymer electrolyte (GPEs), and the results showed that the gel composite electrolytes (GCEs) could display higher capability, higher ionic conductivity and better rate performance at high current density for GCEs-cell. Properties of the silica DSHPs such as larger specific surface area, more porous structures and Lewis acid-base effect were important for high-performance Li-ion batteries.

双壳空心颗粒（DSHP）由于其潜在的用途广泛而备受关注。DSHP通常是通过多步骤的牺牲模板方法获得的，该方法繁琐且效率低下。在这项工作中，已经通过一种新颖的一步模板方法开发了一种简便的二氧化硅DSHP合成方法，该方法使用单孔空心颗粒（SHHP）作为模板。DSHP的形状和内部结构通过SEM和TEM确定，内壳和外壳的平均直径分别为约0.6和1.6μm。根据FTIR分析，还鉴定了二氧化硅DSHP的组成。此外，将二氧化硅DSHP作为凝胶聚合物电解质（GPE）的改性剂应用于锂离子电池，结果表明，在高电流密度下，凝胶复合电解质在高电流密度下表现出更高的容量，更高的离子电导率和更好的倍率性能。二氧化硅DSHP的特性，例如较大的比表面积，更多的多孔结构和路易斯酸碱效应，对高性能锂离子电池至关重要。