Recent Progress in Electrocatalyst for Li-O2 Batteries

In the Li-O-2 field, the electrocatalyst plays an important role in accelerating the sluggish electrochemical reactions, thus improving the performances of Li-O-2 battery. In this field, numerous researches regarding the incorporation of electrocatalyst have been published. With the aim to provide an easy as well as timely access for readers to follow the latest development in the catalyst area, the progress regarding the recent development on the application and research of electrocatalyst for Li-O-2 batteries is reviewed in a comprehensive and systematic manner. The application of various kinds of electrocatalyst including solid catalyst and soluble catalyst is first summarized. Then, relevant research including the catalyst design and the correlation between the catalyst property and the Li-O-2 battery performance is discussed. Finally, insights on how to fabricate an effective electrocatalyst are provided, which are expected to provide guidance for further catalyst design.