Project description
Zinc-based redox flow batteries to boost energy storage capacity
Storing energy effectively is crucial for making the most of renewable energy sources. Redox flow batteries offer a scalable solution but are currently costly and face membrane issues. A promising solution is a new kind of battery called a hybrid zinc-based redox flow battery. It works without a membrane and separates the zinc part from the catholyte, helping reduce energy wastage and boosting efficiency. However, water-based designs can cause problems such as undesired reactions and zinc buildup. To fix this, the Zn-MFreeRFB project, funded by the Marie Skłodowska-Curie Actions programme, will work on a version that uses special non-water-based liquids. This new approach could make batteries last longer, store more energy and work better, helping use renewable energy more effectively.
Objective
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.
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Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
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Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA)
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
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Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships
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Call for proposal
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(opens in new window) HORIZON-MSCA-2024-PF-01
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28935 Mostoles Madrid
Spain
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