The article discusses the development and challenges of electrochemically mediated carbon dioxide (CO₂) capture systems, which offer low energy consumption, modular scalability, and ease of implementation. Key factors such as energy penalties associated with redox-active species transport, gas transport, and bubble formation need to be addressed for cost-competitiveness. The article highlights the importance of engineering approaches to enhance the performance of these systems, focusing on the challenges of scale-up and implementation. Various system configurations, including four-stage, three-stage, and two-stage processes, are discussed, along with their thermodynamic analyses and energy requirements. Transport considerations, bubble management, and scaling and economic considerations are also addressed. The article emphasizes the need for further research to optimize system design, minimize mass-transfer resistances, and reduce the detrimental effects of bubble formation. Finally, the outlook section suggests that electrochemically mediated carbon capture has promising characteristics but requires more general costing and scoping to inform key areas of improvement and allow direct comparisons with existing separation methods.The article discusses the development and challenges of electrochemically mediated carbon dioxide (CO₂) capture systems, which offer low energy consumption, modular scalability, and ease of implementation. Key factors such as energy penalties associated with redox-active species transport, gas transport, and bubble formation need to be addressed for cost-competitiveness. The article highlights the importance of engineering approaches to enhance the performance of these systems, focusing on the challenges of scale-up and implementation. Various system configurations, including four-stage, three-stage, and two-stage processes, are discussed, along with their thermodynamic analyses and energy requirements. Transport considerations, bubble management, and scaling and economic considerations are also addressed. The article emphasizes the need for further research to optimize system design, minimize mass-transfer resistances, and reduce the detrimental effects of bubble formation. Finally, the outlook section suggests that electrochemically mediated carbon capture has promising characteristics but requires more general costing and scoping to inform key areas of improvement and allow direct comparisons with existing separation methods.