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

作　　者：Wei Chen Ya-Feng Gong Jie-Hua Liu 

机构地区：[1]Future Energy Laboratory, School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China

出　　处：《Chinese Chemical Letters》2017年第4期709-718,共10页中国化学快报（英文版）

基　　金：supported by the Natural Science Foundation of China(No.21303038);Scientific Research Foundation for the Returned Overseas Chinese Scholars;State Education Ministry One Hundred,Talents Program of Anhui Province;Open Funds of the State Key Laboratory of Rare Earth Resource Utilization(No.RERU2016004)

摘　　要：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.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.

关 键 词：Electric vehicle Li-O2 battery High capacity Catalysts Electrocatalysis 

分 类 号：O643.36[理学—物理化学] TM912[理学—化学]