锂-空气(Li-air)电池利用空气中的无限氧气通过半开放式阴极结构来存储或释放能量,并具有超过1,000Wh/kg的超高理论能量密度。因此,它已被认为是电动汽车等多功能领域下一代储能的候选者,电信,和特殊电源。在所有类型的锂空气电池中,水性锂空气电池具有超过1,700Wh/kg的高理论能量密度的优点,并且在非水性锂空气电池系统中不存在关键的纯氧气氛问题,这对于实际应用是更有希望的。迄今为止,在材料设计和电池配置方面取得了巨大成就,但是固体电解质隔膜领域仍然存在严峻挑战,其相关的锂剥离/在锂阳极电镀,和阴极电解液设计。在这个小型审查中,我们总结了与水性锂空气电池中固体电解质相关的最新进展,重点是材料和电池器件的开发。此外,我们提出了关于提高固体电解质相容性和电池性能的讨论和独特展望,从而设计出具有更高能量密度和更好循环性能的水性锂空气电池。
The lithium-air (Li-air) battery utilizes infinite oxygen in the air to store or release energy through a semi-open cathode structure and bears an ultra-high theoretical energy density of more than 1,000 Wh/kg. Therefore, it has been denoted as the candidate for next-generation energy storage in versatile fields such as electric vehicles, telecommunications, and special power supply. Among all types of Li-air batteries, an aqueous Li-air battery bears the advantages of a high theoretical energy density of more than 1,700 Wh/kg and does not have the critical pure oxygen atmosphere issues in a non-aqueous lithium-air battery system, which is more promising for the actual application. To date, great achievements have been made in materials\' design and cell configurations, but critical challenges still remain in the field of the solid electrolyte separator, its related lithium stripping/plating at the lithium anode, and catholyte design. In this mini-
review, we summarized recent progress related to the solid electrolyte in aqueous Li-air batteries focusing on both material and battery device development. Moreover, we proposed a discussion and unique outlook on improving solid electrolyte compatibility and battery performance, thus designing an aqueous Li-air battery with higher energy density and better cycle performance in the future.