石榴石型氧化物复合固态电解质研究进展  

Research progress on garnet-type oxide composite solid electrolytes

作　　者：胡桔溏 宋芊颖 唐一帆 旷桂超[1] 陈立宝[1] HU Jutang;SONG Qianying;TANG Yifan;KUANG Guichao;CHEN Libao(State Key Laboratory of Powder Metallurgy,Central South University,Changsha Hunan 410083,China)

机构地区：[1]中南大学粉末冶金国家重点实验室,湖南长沙410083

出　　处：《电源技术》2024年第12期2323-2333,共11页Chinese Journal of Power Sources

摘　　要：全固态锂金属电池(ASSLB)由于其安全性和潜在的高能量密度而被认为是下一代能量存储电池首选。固态电解质作为ASSLB的关键组成部分,具有不燃性和对锂金属阳极的良好适应性,近年来受到广泛关注。在目前报道的固体电解质中,石榴石型氧化物复合固态电解质表现出了巨大的应用潜力。由于其结合单相无机氧化物固态电解质和聚合物固态电解质的优点,既提高了离子电导率,又有效降低了界面电阻,所以能切实提高电池的安全性和能量密度。从石榴石型氧化物复合固态电解质的组分组成、复合方式、结构、锂离子的传输机制和复合电解质中的界面问题进行阐述,指出了复合固态电解质中存在的问题,并对其应用进行了展望。All-solid-state lithium batteries(ASSLBs)are considered to be the preferred choice for next-generation energy storage batteries due to their safety and potential high energy density.Solidstate electrolytes,a key component of ASSLBs,have received much attention in recent years due to their nonflammability and good adaptability to lithium metal anodes.Among the current solid electrolytes,garnet-type oxide composite electrolytes show great potential for application.Due to its combination of the advantages of single-phase inorganic oxide solid electrolytes and polymer solid electrolytes,it not only increases ionic conductivity but also effectively reduces interface resistance,which can effectively improve the safety and energy density of batteries.In this paper,the component composition,composite mode,structure,lithium ion transport mechanism of garnet-type oxide composite solid-state electrolyte and interfacial issues in composite electrolytes were elaborated,the existing problems in the composite solid-state electrolyte were pointed out,and their applications prospects were forecasted.

关 键 词：石榴石型电解质 复合固态电解质 全固态电池 离子电导率 

分 类 号：TM912[电气工程—电力电子与电力传动]