The rapid growth of renewable energy generation is increasing the need for reliable, cost-effective energy storage solutions. Redox flow batteries (RFBs) offer a promising non-lithium pathway due to their scalability, safety, and use of abundant materials, but their adoption is still limited by the performance and cost of existing electrode technologies.
This project focuses on a new class of electrodes based on carbon nanotube (CNT) architectures directly integrated onto conductive substrates. Unlike conventional carbon felt systems, which rely on loosely connected fibers and mechanical contact, this approach creates a more continuous and efficient pathway for electron transport while increasing the available surface for electrochemical reactions.
The resulting structure is designed to improve how the electrolyte interacts with the electrode, enabling more efficient charge transfer and supporting higher operating currents. These characteristics can translate into faster charge–discharge capability and improved overall system performance without increasing system complexity.
By combining a simplified electrode structure with improved electrical and electrochemical behavior, this approach aims to enhance long-term reliability while reducing system cost. The technology is intended for stationary energy storage applications where durability, safety, and cost-effectiveness are critical.