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 11 of 11 for “"gravimetric energy density"”.
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Three-dimensional electronic resistivity mapping of solid electrolyte interphase and anode active material in lithium-ion batteries
… because of the order-of-magnitude improvement in gravimetric energy density over current state-of-the-art graphite anodes. In systems featuring both C and Si anodes, electronic resistivity of the solid-electrolyte interphase (SEI) layer is a critical factor for preventing continuous electrolyte …
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Direct Methanol Fuel Cells Using Pure Methanol
… significant appeal as a form of renewable energy in recent years due to its diverse applications, various fuel types, and lower greenhouse gas emissions. Of the various fuel cell types, direct methanol fuel cells (DMFCs) hold a set of distinct advantages for stationary and small portable …
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Elucidating Concentration and Temperature-dependent Energy Limitations of a Novel Fluorinated-organosulfur Catholyte for Li Primary Batteries
Increasing the energy density of Lithium (Li) primary batteries requires exploring novel electrochemical reactions. Herein, the novel Li–carbon cell with a liquid catholyte based on the reactant 4-nitrophenylsfur (NO₂-Ph-SF₅) is studied in detail with emphasis on its energy limitations under …
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Mechanisms of discharge product evolution and solvent stability in lithium-oxygen batteries
… offer the possibility of achieving twice the gravimetric energy density of lithium-ion batteries. However, several challenges remain to achieve commercially-available lithium-oxygen batteries. Capacity must be optimized by maximizing the formation of Li₂O₂ discharge product. Side reactions …
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A multi-functional electrolyte for lithium-ion batteries
… of every cell, decreasing the volumetric and gravimetric energy density of the pack. In the present study, a novel, internal TMS that utilizes a multi-functional electrolyte (MFE) is investigated, which contains a volatile co-solvent that boils upon heat absorption in small channels in the …
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Fabrication and demonstration of high energy density lithium ion microbatteries
… have only experienced mild improvement in energy and power performance, which remains one of the main hurdles for their widespread implementation in applications outside of powering compact portable devices, such as in electric vehicles. Li-ion batteries must be advanced through a …
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Design of electrode for electrochemical energy storage and conversion devices using multiwall carbon nanotubes
… thicknesses of several microns can deliver high energy density (200 Wh/kg) at an exceptionally high power of 100 kW/kg in lithium nonaqueous cells. Utilizing the redox reactions on the surface functional groups in a wide voltage window (1.5 - 4.5 V vs. lithium) in nonaqueous electrolytes, …
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Investigation of lithium-air battery discharge product formed on carbon nanotube and nanofiber electrodes
… of applications including those related to energy storage. Li-air (Li-O₂) batteries have received much interest recently because of their very high theoretical energy densities (3200 Wh/kgLi2O₂), which make them ideal candidates for energy storage devices for future fully-electric vehicles. …
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Molecular-Level Understanding of Electrochemical Reaction Mechanisms and Electrode Interphases in Metal-CFx Batteries
<p>The development of high-energy-density battery materials is crucial for applications spanning from electric vehicles to space exploration. Metal anode and conversion-type batteries provide higher specific energy compared to conventional intercalation-based systems. Among these, metal-carbon …
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Dynamic Modelling and Optimization of Hydrogen Refuelling Stations and Their Integration with Renewable Microgrids
… thanks to their short refueling times and high gravimetric energy density. However, the implementation of FCEVs requires the design of efficient hydrogen refueling stations (HRS) capable of ensuring safe, fast, and complete refueling, in compliance with international protocols, such as SAE …
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Improving energy and power densities of three-dimensional next generation secondary battery electrodes
… was achieved with both good full-electrode gravimetric capacity and volumetric capacity.