​Metal-CO2 batteries have been considered a promising approach to neutralising the global CO2 level, but they still suffer from poor energy efficiency and cycling stability. This project aims to address these issues by developing a new generation of Zn-CO2 flow battery system with efficient electrocatalysts. This project aims to develop an efficient carbon capture and storage technique, which has great practical significance in alleviating global climate change caused by the increasing CO2 emissions. The proposed metal-CO2 batteries with CO2 as cathode active species give rise to opportunities to deal with environmental and energy issues simultaneously. This technology also has great economic value by converting CO2 into value-added chemicals.