以PEO-LiClO4为基质材料,以CeO2和TiO2作为无机填料,采用原位复合法与溶液浇铸法相结合的方法制备了PEO-LiClO4-CexTi1-xO2全固态复合聚合物电解质薄膜(CPE).利用交流阻抗方法和差示扫描量热法对CPE的电导率、玻璃化转变温度和结晶度进行了研究.结果表明,添加不同粒径的纳米氧化物可在不同尺度上更加有效地破坏聚合物基体的结晶行为,增大离子传输所需的无定形区域,同时,降低了聚合物PEO的玻璃化转变温度和结晶度,并使其结晶度在较长时间内维持在较低水平,最终使离子电导率得到了明显提升.
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