SUN Jiyang, CUI Zhonghui, GUO Xiangxin
(1. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China)

Abstract: Aprotic Li-air batteries (LABs) have attracted intensive interest because of their highest theoretical energy density compared with other available battery systems. However, recent research results demonstrated that the organic electrolytes tend to decompose and form carbonates during charge/and discharge process, which severely impairs the reversibility of such batteries. Moreover, the problems related to the organic electrolytes like flammability, volatility as well as incapacity to block the penetration of non-oxygen components from air will hinder the development of high performance aprotic LABs. Replacing organic electrolytes with inorganic ceramic solid electrolytes is promising to completely solve these problems and promotes the development from lithium oxygen batteries to lithium air batteries. This paper summarizes the progress and challenges for solid-state Li-air batteries based on inorganic ceramic solid electrolytes from the aspects of battery architecture, materials (electrodes and electrolytes) and reaction mechanism.
Key words: solid state Li-air battery; inorganic ceramic solid electrolytes; battery architecture; reaction mechanism