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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 83 for “"supercapacitor"”.
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Supercapacitor-based linear converter for voltage regulator modules
… The original linear regulator is the patented supercapacitor assisted low-dropout regulator (SCALDO). A less complex, lower cost design was achieved by reducing the number of switches in the original SCALDO and adding a second low dropout regulator (LDO). In the initial implementation of this …
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Analysis on Supercapacitor Assisted Low Dropout (SCALDO) Regulators
… by the ratio of Vo/Vin. A very low frequency supercapacitor circulation technique can be combined with commercial low dropout regulator ICs to significantly increase the end-to-end efficiency by a multiplication factor in the range of 1.33 to 3, compared to the efficiency of a linear regulator …
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Heteroatom-containing carbons for high energy density supercapacitor
The supercapacitor is one of the most important energy storage devices as its construction allows for addressing many of the drawbacks related to batteries, but the low energy density of current systems is a major issue. In this doctoral dissertation, with a view to attaining high energy density …
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Develop a Supercapacitor Real Time Model for PHIL Simulation
… energy storage devices, like batteries and supercapacitors, are introduced into the system to ensure quality power is provided under a wide range of dynamic load conditions. Hardware-in-the-loop (HIL) and power-hardware-in-the-loop (PHIL) real time simulations are among the most reliable …
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Investigation of Two-Dimensional Structured Polyaniline for Supercapacitor Applications
Mass and charge transport within nanostructures, i.e., nanofluidic study, is essential to the mechanism understanding and further development of electrochemical systems. Two-dimensional (2D) nanofluidic materials featuring well-organized flat nanochannels, as well as adjustable structural and …
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Supecapacitor-assisted Temperature Modification Apparatus (SCATMA) and Fast Supercapacitor Charger
… presents the design and development of the supercapacitor-assisted "instant" water heating system as well as a new power converter topology to fast charge a supercapacitor bank. Delayed delivery of hot water in domestic water heating systems wastes over 15 million cubic metres of treated …
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Nuclear Magnetic Resonance Studies of Ion Adsorption in Supercapacitor Electrodes
Supercapacitors (or electric double-layer capacitors) are high power energy storage devices that store charge by the non-faradaic adsorption of ions at the interface between porous carbon electrodes and an electrolyte solution. The development of new electrode materials and electrolytes with …
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Investigating Layered Electrically Conductive Metal-Organic Frameworks For Supercapacitor Applications
Supercapacitors are high-power energy storage devices that will play an important role in the transition to a low-carbon society. In recent years, layered electrically conductive metal-organic frameworks (MOFs) have emerged as one of the most promising electrode materials for next-generation …
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Supercapacitor electrode materials based on nanostructured conducting polymers and metal oxides
Supercapacitors are charge-storage devices. Compared to batteries, they have higher power density, more excellent reversibility and longer cycle life. Therefore, supercapacitors have played an increasingly important role in the fields of power source especially in automotive applications, such as …
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Supercapacitor assisted LED (SCALED) converter technique for solar powered DC-microgrids
… unfriendly. With the continuous developments of supercapacitor materials and manufacturing techniques over the last decade, it is now possible to adopt supercapacitors as short-term energy storage devices in solar powered DC-microgrids to replace electrochemical battery packs. When …
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Permeance based modelling, design and optimization of supercapacitor assisted surge absorber (SCASA)
Supercapacitor assisted (SCA) techniques are a unique set of circuit topologies designed to fulfil power conversion and protection tasks by circumventing the energy losses normally associated with RC based circuits. With million times larger capacitance compared to electrolytic type, …
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Electrochemical Study of Ceramic (BaTiO3 based)/ Polymer Composite electrodes for Supercapacitor applications
Electrochemical Supercapacitors are high energy storage devices compared to the conventional capacitors. Supercapacitors work on the simple phenomena of electrostatics and electrochemistry helping to harvest energy in a greener way. This research explores supercapacitive properties of the BaTiO3 …
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Colorimetric sensor array for identification of fungi & ultrasonic spray synthesis for supercapacitor materials
… of fungi, and (2) ultrasonic spray synthesis for supercapacitor electrode materials. Human fungal infections have attracted intense current interest, especially in the light of recent outbreaks from pharmaceutical contamination, but also due to infections of immunocompromised patients by …
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Supercapacitor-assisted Arc Management (SCA2M) technique for DC circuit breakers in low-voltage applications
… decades of past work based on non-traditional supercapacitor applications known as supercapacitor-assisted (SCA) techniques, achieving multiple patents and industry products. This thesis aims to develop an electric arc-management technique for mechanical contact-pair based DCCBs using the rapid …
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Design, analysis, and control of switched supercapacitor banks for e-transportation electric energy storage systems
The hybridization of supercapacitors (SCs) with batteries in electric vehicles (EVs) improves the battery life, acceleration, and driving range. However, the efficiency of the power interface that unites the batteries and SCs are affected due to wide voltage variations at the SC bank terminals. …
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Measurement of a new micro supercapacitor and the creation of its dielectric medium y Freddy Raynard Funes.
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2004.
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Investigation of electrochemical and material properties of TiO2 nanostructures generated by pulsed laser ablation
The most challenging feature of the supercapacitor is low energy density. The supercapacitor's low energy density can be improved by proposing new materials for electrodes, electrolytes, etc. This thesis presents a new method for fabricating electrodes in a supercapacitor structure. In this method, …
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