Descripción del proyecto
Baterías de flujo redox a base de zinc para aumentar la capacidad de almacenamiento de energía
Almacenar la energía de forma eficaz resulta fundamental para aprovechar al máximo las fuentes de energía renovables. Las baterías de flujo redox ofrecen una solución escalable, pero actualmente son costosas y se enfrentan a problemas de membrana. Una solución prometedora es un nuevo tipo de batería llamada «batería de flujo redox híbrida basada en zinc». Funciona sin membrana y separa la parte de zinc del catolito, lo cual contribuye a reducir el despilfarro de energía y a aumentar la eficacia. Sin embargo, los diseños a base de agua pueden causar problemas como reacciones no deseadas y acumulación de zinc. Con el apoyo de las acciones Marie Skłodowska-Curie, el proyecto Zn-MFreeRFB trabajará en una versión que utilice líquidos especiales no acuosos. El nuevo método podría lograr que las baterías duraran más, almacenaran más energía y funcionaran mejor, ayudando a utilizar las energías renovables de forma más eficaz.
Objetivo
Efficient energy storage is crucial for integrating renewable energy sources and ensuring climate security. Redox flow batteries (RFBs) offer a scalable solution but are currently hindered by high costs and limited ion exchange membranes. To address these limitations, biphasic membrane-free redox flow batteries (RFBs) have received significant attention. However, it is important to note that this membrane-free technology is still in its early research stages and presents several challenges such as self-discharge, low Coulombic efficiency, and reduced state of charge. To address this, hybrid Zn-based biphasic membrane-free RFBs have emerged as a potential solution. These systems utilize a metal-based anolyte (Zn metal anode) that remains separate from the catholyte, thereby mitigating self-discharge and enhancing coulombic efficiency. However, existing hybrid Zn-based membrane-free RFBs predominantly use aqueous electrolytes for the Zn metal anode. This approach presents several issues, including dendrite formation, undesired side reactions such as hydrogen and oxygen evolution, a restricted voltage window, and surface passivation problems. To overcome these challenges, this research proposes the development of a hybrid Zn-based membrane-free RFB utilizing a nonaqueous biphasic electrolyte system. By employing a eutectic solvent for the Zn metal anode and a nonaqueous solvent for the redox-active cathode materials, this approach aims to reduce dendrite formation, eliminate unwanted side reactions, and extend the electrochemical stability window. This innovative system promises to enhance both efficiency and energy density, addressing the limitations of both aqueous and nonaqueous systems. Conducted at IMDEA Energy under the guidance of Dr. Rebeca Marcilla, the project will focus on developing advanced electrolytes, fabricating the biphasic system, designing high-voltage batteries, and evaluating performance.
Palabras clave
Programa(s)
- HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA) Main Programme
Convocatoria de propuestas
(se abrirá en una nueva ventana) HORIZON-MSCA-2024-PF-01
Consulte otros proyectos de esta convocatoriaRégimen de financiación
HORIZON-TMA-MSCA-PF-EF -Coordinador
28935 Mostoles Madrid
España