Systems and methods for direct conversion of co2 into electrical energy based on fe-co2 battery

Abstract

Embodiments provide systems and methods for conversion of carbon dioxide (CO2) to energy based on metal-CO2 batteries. The disclosed power systems and methods utilize iron (Fe)-based CO2 batteries that include a porous cathode (e.g., a carbon nanofiber (CNF) cathode) and an anode formed from Fe or Fe-alloy. In an aspect, the porous cathode may be coated with a catalyst to improve performance of the battery system. The disclosed battery systems offer direct CO2 reduction by electron transfer via exposure of Fe ions (Fe+2, Fe+3) from the anode to the CO2 provided to the porous cathode, which is used as an efficient electrochemical energy conversion device for direct converting captured CO2 into electrical energy without having additional energy consumption. The chemical reactions provided by the disclosed battery systems also facilitate generation of useful by-products in an energy efficient and environmentally friendly manner.

Dependencies are inferred from the claim text.