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 12 of 12 for “"Solid Polymer Electrolyte"”.
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Enhancing Interfaces in Solid Polymer Electrolyte-Based Flexible Lithium-Ion Batteries
… to batteries. In this dissertation, a soy-based solid polymer electrolyte was introduced to improve the solid-state lithium-ion battery performance. The resultant composite electrolytes with 0.5wt% Tryptone Soy Broth (TSB) show about two orders of magnitude enhancement in ion conductivity. The …
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In-situ Polymerization of Methacrylate based Solid Polymer Electrolyte for Solid State Lithium-ion Batteries
… are the need of the hour. Conventional liquid electrolyte batteries for LIBs may pose a safety hazard due to the use of flammable organic electrolytes with high vapor pressure. Solid state batteries (SSB) may become a solution to this problem if they mitigate the flammability issue and offer …
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NMR Characterization of Novel Materials for Battery Electrolyte Applications
… novel battery materials as potential battery electrolytes. Works discussed include: the variable temperature characterization of water-based solid polymer electrolyte for lithium-ion batteries (LIB), an investigation of a novel deep eutectic solvent (DES) electrolyte for batteries, the …
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A study of the effects of lithium perchlorate on poly(ethylene oxide), (Peo) melt dynamic behavior using Fabry-Perot interferometry
… complexes are widely studied as a prototype solid polymer electrolyte in rechargeable lithium-polymer batteries. Characterizing the structure and dynamics of the system in its molten state is important for understanding the role of the polymer environment in lithium ion transport and …
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Deriving and numerically solving the weak form equation of a continuum field model for an electro-elastic-diffusive system
… efficient energy storage devices like batteries. Solid state batteries have favorable characteristics that make them ideal for portable stretchable electronics. However, these still incur substantial energy losses during energy storage and tend to have less ionic conductivity when compared to …
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Light Emission and Charge Transport in Reverse Biased Polymer Junctions
… as a p-n junction is at the heart of many modern solid-state devices. Among organic electronic devices, light-emitting electrochemical cells (LECs) are unique in that they possess a true p-n junction formed by in situ electrochemical doping reactions. Similar to an inorganic p-n junction LED in …
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Probing of reaction mechanisms, and development of polymeric materials for lithium-air batteries
… such as the use of volatile and flammable liquid electrolytes, side reactions between the electrolyte/electrode with oxygen reduction products, and high charging over-potentials that lead to poor cycle life. We address these challenges by developing non-flammable polymeric-based electrolytes and …
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New Solid Polymer Electrolytes for Lithium, Sodium, and Calcium-based Batteries
… have investigated different lithium-free liquid electrolytes, the transport of these alternative ions in their polymer counterparts remains understudied. The advantages of solid polymer electrolytes include the possibility of higher energy density in solid-state devices and the elimination of …
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Fully Aerosol-Jet Printed Trilayer Electrochemical Actuator
… trilayer ECA that operates in air comprises a solid polymer electrolyte layer sandwiched between two electrode layers, and achieves bending through electric-field-driven migration of ions which causes expansion of one side and contraction of the other. Despite the theoretical possibility of …
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The Bilayer Polymer Light-Emitting Electrochemical Cells
Polymer light-emitting electrochemical cells (LECs) are solid-state polymer devices that form light-emitting p-n junctions in situ from electrochemical doping, which occurs under an applied voltage or current bias. LECs typically consist of a combination of a luminescent polymer, an electrolyte …
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MULTI-IONIC LITHIUM SALTS FOR USE IN SOLID POLYMER ELECTROLYTES FOR LITHIUM BATTERIES
Commercial lithium ion batteries use liquid electrolytes because of their high ionic conductivity (>10-3 S/cm) over a broad range of temperatures, high dielectric constant, and good electrochemical stability with the electrodes (mainly the cathode cathode). The disadvantages of their use in lithium …
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Synthesis and characterization of nanostructured materials for Li-ion secondary batteries
… was the substitution of the traditional liquid electrolyte solution with a quasi-solid polymer electrolyte membrane. This new configuration demonstrated good cycling stability and capacity retention, directly related to the polymerization process used (i.e., UV photo-polymerisation) in which the …