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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 25 for “"redox flow battery"”.
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Semi-solid redox flow battery
… batteries and the design and functioning of a redox flow cell. The use of Li-ion battery materials offers significant increases in energy and power density (200 Wh/kg compared to 25-35 Wh/kg for current commercial vanadium redox batteries). The implementation of a redox flow system allows for …
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Numerical investigation of convective transport in redox flow battery tanks
Made available in DSpace on 2019-08-23T20:36:11Z (GMT). No. of bitstreams: 2 WANG-THESIS-2019.pdf: 2224363 bytes, checksum: b585cccf7c054cb6ce1434116504bca9 (MD5) LICENSE.txt: 4206 bytes, checksum: cf7ef4b2f5f3c7d3541f59ca91e8a01a (MD5) Previous issue date: 2019-04-25
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Dynamic modelling and simulation of the all-vanadium redox flow battery
… renewable energy applications, the all-vanadium redox flow battery has received the most attention to date as the energy storage technology most likely to meet the required energy efficiency, cycle life and cost structure. The widespread commercialization of the vanadium redox flow battery will …
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Direct measurement of vanadium cross-over in an operating redox flow battery
A redox flow battery (RFB) is an electrochemical energy storage device in which the storage medium is in the form of liquid electrolyte, which is stored in external reservoirs separate from the cell stack. The storage capacity of such systems is limited by the size of the external tanks, making the …
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The characterisation and optimisation of the zinc bromine hybrid redox flow battery
The zinc-bromine hybrid redox flow battery (RFB) is one of the few battery systems that have seen implementation on the medium to large scale energy storage. However, there still exist financial barriers to allow this technology to be fully utilised on the market. To improve this system, several …
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Supramolecular effects in pyridinium compounds and their application towards practical redox flow battery systems
Aqueous-organic redox flow batteries (AORFBs) have emerged as a promising technology class for stationary energy storage. To date, however, synthetic strategies for organic electrolytes have emphasised molecular complexity as a means of targeting desired performance characteristics. Consequently, …
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On the Impact of Electrode Properties and Their Design for Redox Flow Battery Performance
Redox flow batteries (RFBs) are a promising technology for grid energy storage. However, cost reductions are required prior to widespread adoption. Advances in the design and engineering of the electrochemical stack may enable cost reductions for multiple redox chemistries. Porous electrodes are a …
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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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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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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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Thermoelectrochemical model for RFB with an application at a grid level for peak shaving to reduce cost of the total electricity
… and reduce grid-infrastructure costs. Redox flow batteries (RFB) area grid-scale storage technology that has the potential to provide a range of services.Desirable characteristics are long cycle life, high efficiency, and high energy density.A key challenge for aqueous redox flow …
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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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Electrochemical and structural properties of superionic conductors in aqueous electrolyte
… is the low-cost air-breathing aqueous sulfur redox flow battery proposed by the Chiang group. Currently, the battery power output is significantly limited by high resistance from the membrane, a superionic conductor. This thesis investigates the electrochemical and structural properties of …
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Modeling and optimization of energy storage system for microgrid
<p>"The vanadium redox flow battery (VRB) is well suited for the applications of microgrid and renewable energy. This thesis will have a practical analysis of the battery itself and its application in microgrid systems. The first paper analyzes the VRB use in a microgrid system.</p> <p>The first …
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Aqueous Polysulfide Electrodes for Low-Cost Grid-Scale Energy Storage
… energy storage for the electricity grid, sulfur redox reaction in aqueous solutions presents an attractive candidate due to its low cost and high abundance. To this end, an air-breathing aqueous polysulfide redox flow battery was demonstrated as a promising candidate, which pairs a similarly …
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Water-Soluble Redox Materials and Their Applications in Aqueous Batteries
… design for optimising the aqueous redox reaction, development of novel aqueous battery systems by exploring the existing electroactive materials in the new systems and by exploring new redox-active materials for achieving the high-performance aqueous batteries. Specifically, in the …
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Triply Periodic Minimal Surface Lattices for Mechanically Tuning Structures and Designing Multifunctional Devices
… is a semi active damper with an integrated redox flow battery. The triply periodic minimal surface used in this device is designed for passive damping and flowing electrolyte to the electrode of the battery. The electrolyte of the battery has a double purpose of (1) flowing ions through the …
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Bringing Redox Flow Batteries to the Grid: Techno-economic Modeling for Chemistry-Informed Design of Redox Flow Batteries
… needed 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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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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Organic macromolecular architectures for non-aqueous redox flow batteries
… 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 of such a material utilized viologen pendant …
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