Researchers from Tokyo Metropolitan University have developed an innovative electrochemical cell that efficiently converts captured carbon dioxide (CO2) into formate, a green fuel. This new system, as published in the journal EES Catalysis, aims to tackle the challenge of utilizing captured CO2 effectively while ensuring energy efficiency. The process involves converting CO2 into environmentally friendly formate, which can be used in fuel cells to generate power similarly to hydrogen. Formate is deemed advantageous for its safety, storage simplicity, and durability compared to other sustainable fuels. The electrochemical cell developed by the team demonstrated a high efficiency of 85% in converting bicarbonate ions into formate ions, showcasing improved durability and selectivity. This advancement in electrochemical technology offers potential applications ranging from small-scale to industrial use, contributing to a more sustainable and greener future. The innovative approach of utilizing formate as a green fuel solution signifies a positive step towards addressing climate change challenges, with promises of impactful improvements in electrochemical cell efficiency.