Recent advances in electrocatalysts for non-aqueous Li-O2 batteries

• Published in: Chinese chemical letters Vol. 28; no. 4; pp. 709 - 718
• Main Authors: Chen, Wei, Gong, Ya-Feng, Liu, Jie-Hua
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.04.2017
• Subjects: Catalysts; Electric vehicle; Electrocatalysis; High capacity; Li–O2 battery; Electrocatalysis; Electric vehicle; High capacity; Catalysts; Li–O2 battery
• ISSN: 1001-8417; 1878-5964
• DOI: 10.1016/j.cclet.2016.10.023

As one of the next-generation energy-storage devices,Li-O_2 battery has become the main research direction for the academic researchers due to its characteristics of environmental friendship,relatively simple structures,high energy density of 3500Wh/kg and low cost.However,Li-O_2 battery cannot be commercialized on a large scale because of the challenging issues including high-efficient electrocatalysts,membranes,Li-based anode and so on.In this review,we focused on the recent development of electrocatalyst materials as cathodes for the non-aqueous Li-O_2 batteries which are relatively simpler than other Li-O_2 batteries＇ structures.Electrocatalysts were summarized including noble metals,nanocarbon materials,transition metals and their hybrids.We points out that the challenges of preparation high-efficient catalysts not only require high catalytic activity and conductivity,but also have novel nanoarchitectures with large interface and porous volume for LiO_x storage.Furthermore,the further investigation of reaction mechanism and advanced in situ analysis technologies are welcome in the coming work.