Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 63 for “"flow batteries"”.
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Mechanical design of flow batteries
… the design of low-cost, high-efficiency flow batteries. Researchers are searching for next-generation battery materials, and this thesis presents a systems analysis encompassing static and moving electrode architectures that identifies which architecture is most appropriate for which …
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Bringing Redox Flow Batteries to the Grid: Techno-economic Modeling for Chemistry-Informed Design of Redox Flow Batteries
… to support the many functionalities. The redox flow battery (RFB) is one electrochemical storage technology that is particularly competitive, on a capital cost basis, at longer durations (> 4 hours) due to its unique decoupling of energy and power facilitated by an open architecture. This …
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Pathways to next-generation redox flow batteries
Redox flow batteries (RFBs) provide a promising pathway towards grid-scale energy storage but are inhibited from widespread implementation due to high costs. RFBs are divided into aqueous (Aq) and nonaqueous (NAq) redox flow batteries, both of which show distinct challenges to build low-cost RFBs …
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Rational design strategies for redox flow batteries
… to support this transition with redox flow batteries (RFBs) emerging as a promising grid-scale platform, as their unique architecture offers decoupled energy / power scaling, simplified manufacturing, and long service life. Despite these favorable characteristics, current embodiments …
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Metal metaphosphate complexes for redox flow batteries
… to limit crossover of active species in redox flow batteries was explored. A series of first row transition metal trimetaphosphate complexes as bis(triphenylphosphine)iminium (PPN) salts have been prepared. Their electrochemical properties have been studied to evaluate them for redox flow …
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Designer Porous Carbon Electrodes for Redox Flow Batteries
… electrodes are of particular relevance to redox flow batteries (RFBs), as, during operation, dissolved active species are forced through the porous media and react on its internal surfaces. RFBs hold promise for long duration energy storage due to their decoupling of energy and power, long …
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Modeling and design of semi-solid flow batteries
… model of the recently introduced semi-solid flow battery system is developed and applied to address issues with important design and operation implications. Because of the high viscosity of semi-solid flow battery suspensions, alternative modes of operation not typically used in conventional …
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Modelling and simulation of all-vanadium redox flow batteries
Properties and applications of all-vanadium redox flow batteries are discussed and a two-dimensional model is developed. The model, which is based on a comprehensive description of mass, charge, energy and momentum transport and conservation, is combined with a global kinetic model for reactions …
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ELECTRODE AND MEMBRANE MODIFICATION OF DIFFERENT REDOX FLOW BATTERIES
… energy storage technologies, the redox flow batteries known for their high capacity, energy efficiency and low cost have attracted huge attention. Among all kinds of different flow batteries, Zinc-based flow batteries (ZBFB) and Vanadium flow batteries (VFB) are two of the most promising …
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Organic macromolecular architectures for non-aqueous redox flow batteries
The work presented is focused on the development of polymers and polymer architectures to create redox active materials. Here we attempt to produce an all-organic polymer battery in solution state using inexpensive Celgard separators to compete with experiencing large crossover. Our first example …
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Low cost reactors for redox-active polymer flow batteries
… small molecules, used traditionally in redox flow batteries (RFBs), are susceptible to parasitic crossover of electroactive species through a porous separator, and require expensive ion exchange membranes (IEMs) to achieve long lifetimes. Redox-active polymer (RAP) solutions show great promise …
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Rheology, conductivity, and structure of complex fluids in flow batteries
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2025-05-01
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Investigating Crossover in Aqueous Organic Redox Flow Batteries Using NMR Spectroscopy
… electricity grid. Aqueous organic redox-flow batteries (AORFBs) are promising candidates for this application. These batteries are composed of two aqueous electrolytes with organic redox-active material dissolved in solution. The two energy-storing electrolytes are separated by an …
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Novel Catholyte and Electrolyte Optimisation for Aqueous Organic Redox Flow Batteries
Redox flow batteries (RFBs) are a promising technology for grid-level energy storage. The ability to decouple energy and power, as well as the potential for low-cost and safe materials, make them particularly suited to this application. However, there is a lack of viable organic catholytes for RFBs …
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Electrochemical engineering of low-cost and high-power redox flow batteries
… in the electricity generation sector, and redox flow batteries (RFBs) are promising devices to serve this application. Unlike enclosed batteries, RFBs implement soluble redox active species dissolved in liquid electrolytes, which are stored in large tanks. The electrolyte is pumped through an …
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A Study of Novel Nitrogen-Containing Quinoidal Electrolytes for Redox Flow Batteries
Redox flow batteries (RFBs) with their decoupled power and capacity scaling are a promising energy storage technology. However, low energy density and high capital costs stymy such systems. For this reason, novel electrolytes are under active development. Previous electrolytes have involved a …
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Combining Computation and Experimentation for Accelerated Understanding of Electrode Microstructure in Redox Flow Batteries
… reducing anthropogenic carbon emissions. Redox flow batteries (RFBs) are a promising long-duration energy storage technology, whose modular energy and power scaling complements diurnal, weather-dependent electricity generation. Pumped from external tanks, liquid-phase electrolytes containing …
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Towards a Fundamental Understanding of Aqueous Organic Redox Flow Batteries – A Study of Degradation, Aggregation, and Reactivity
… energy storage systems are crucial. Redox flow batteries (RFBs) are a useful tool for grid-scale energy storage and are able to address the intermittent nature of renewable energy sources. RFBs are well-suited for grid-scale applications due to their scalability, long cycle life, …
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Implementation of electric vehicle system based on solar energy in Singapore assessment of flow batteries for energy storage
For large-scale energy storage application, flow battery has the advantages of decoupled power and energy management, extended life cycles and relatively low cost of unit energy output ($/kWh). In this thesis, an overview of various flow battery technologies has been presented, with comparison to …
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