采用传统固相反应法制备了锑掺杂的锆镧酸锂固体电解质陶瓷.对陶瓷的晶体结构、显微结构及元素分布、离子电导率进行了研究.结果表明:少量锑掺杂可明显提高锆镧酸锂固体电解质陶瓷的离子电导率.1160℃烧结的锑掺杂固体电解质中,晶粒表面形成无定型的薄膜.此薄膜抑制了晶粒生长,消除了晶界上的气孔,提高了陶瓷致密度,提高了陶瓷的离子导电率.1160℃烧结得到的Li6.925La3Zr1.925Sb0.075O12陶瓷离子电导率高达3.40×10-4 S/cm.
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