光辅助锂-二氧化碳电池催化剂的设计策略与反应机理研究进展OA北大核心CSTPCD

Photo-assisted Li-CO2 batteries have the characteristics of high theoretical energy density and environmental friendliness,which are important development direction for the next generation of high specific energy battery systems.However,the CO2 reduction/evolution reaction at the positive electrode has problems such as slow kinetics,which limits the development of Li-CO2 batteries.Photo-assisted technology utilizes the photocatalyst loaded on the positive electrode to absorb light energy,generate electrons and holes to drive chemical reactions,which is beneficial for improving battery performance.This review summarizes the photochemical principles and charge-discharge reaction mechanism of photo-assisted Li-CO2 batteries,lists design strategies and specific examples of cathode photocatalysts.The impact of photocatalyst structure on battery performance is further understood through in-depth exploration of the photocatalytic reaction mechanism of Li-CO2 batteries.In addition,the basic understanding of photo-assisted Li-CO2 batteries,current challenges,and prospects for the development of photocatalysts were discussed,providing an important reference for technical research in the field of new energy materials and helps to promote the practical process of Li-CO2 batteries.