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Electrochemical carbon capture (ECC) technologies are rapidly emerging as promising alternatives to conventional carbon capture methods, offering higher energy efficiency, modular design, and ease of retrofitting. ECC systems leverage redox reactions to separate and concentrate CO2 from diverse sources, including point emissions, ambient air, and seawater. Multiple ECC approaches, differing in their redox mechanisms, have been developed, with progress in cell architecture, electrode and electrolyte materials, and operational control. While significant technical advances have been achieved, the large-scale deployment of ECC hinges on its economic viability, particularly its ability to meet cost benchmarks aligned with carbon pricing and regulatory policies. Despite this, comprehensive techno-economic analyses (TEAs) remain scarce in ECC literature. This study presents a detailed TEA framework for ECC systems, enabling cost comparisons with conventional carbon capture technologies and identifying key cost drivers. A full-scale process model was developed, and the levelized cost of CO2 capture (LCOCC) was evaluated for various implementation scenarios, complemented by an extensive range of sensitivity analyses. A cost target analysis was also introduced to evaluate the combined impact of system efficiency, current density, electrode architecture, and membrane cost on achieving specific LCOCC targets. When implemented for CO2 capture from a reference coalfired power plant, the baseline LCOCC was estimated at $139.5/tonne CO2, with 67% attributed to capital expenditures (CapEx) and 33% to operational expenditures (OpEx). Membrane cost and electrochemical active surface area to geometric area (ECSA-toGA) ratio were the dominant factors influencing CapEx and thus LCOCC. The cost target analysis showed that at current membrane prices and high enough ECSA-toGA ratios, LCOCC below $100/tonne CO2 is already achievable. Further reductions in membrane cost-via economies of scale or materials innovation-could lower LCOCC below $75/tonne CO2, positioning ECC as a highly competitive option for point-source carbon capture. This work provides a transferable TEA framework to guide the development and economic evaluation of next-generation ECC technologies.