用于准固态钠电池的负载离子液体（IL）的金属有机框架（IL-MOF）电解质
Ionic Liquid (IL) Laden Metal-Organic Framework (IL-MOF) Electrolyte for Quasi-Solid-State Sodium Batteries.
作者信息
Yu Xingwen, Grundish Nicholas S, Goodenough John B, Manthiram Arumugam
机构信息
Materials Science and Engineering Program and Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, United States.
出版信息
ACS Appl Mater Interfaces. 2021 Jun 2;13(21):24662-24669. doi: 10.1021/acsami.1c02563. Epub 2021 May 19.
An ionic liquid (IL) laden metal-organic framework (MOF) sodium-ion electrolyte has been developed for ambient-temperature quasi-solid-state sodium batteries. The MOF skeleton is designed according to a UIO-66 (Universitetet i Oslo) structure. A sodium sulfonic (-SONa) group grafted to the UIO-based MOF ligand improves the Na-ion conductivity. Upon lading with a sodium-based ionic liquid (Na-IL), sodium bis(trifluoromethylsulfonyl)imide (NaTFSI) in 1--butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide (Bmpyr-TFSI), the Na-IL laden sulfonated UIO-66 (UIOSNa) quasi-solid electrolyte exhibits a Na-ion conductivity of 3.6 × 10 S cm at ambient temperature. Quasi-solid-state sodium batteries with the Na-IL/UIOSNa electrolyte are demonstrated with a layered NaNiTeO cathode and sodium-metal anode. The quasi-solid-state Na∥Na-IL/UIOSNa∥NaNiTeO cells show remarkable cycling performance.
一种用于室温准固态钠电池的负载离子液体（IL）的金属有机框架（MOF）钠离子电解质已被开发出来。MOF骨架是根据UIO - 66（奥斯陆大学）结构设计的。接枝到基于UIO的MOF配体上的磺酸根（-SONa）基团提高了钠离子传导率。在用基于钠的离子液体（Na-IL），即1-丁基-1-甲基吡咯烷鎓双（三氟甲基磺酰）亚胺（Bmpyr-TFSI）中的双（三氟甲基磺酰）亚胺钠（NaTFSI）进行负载后，负载Na-IL的磺化UIO-66（UIOSNa）准固态电解质在室温下表现出3.6×10 S cm的钠离子传导率。使用Na-IL/UIOSNa电解质的准固态钠电池通过层状NaNiTeO阴极和钠金属阳极得以展示。准固态Na∥Na-IL/UIOSNa∥NaNiTeO电池表现出卓越的循环性能。
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