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 44 for “"Solid electrolytes"”.
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Ab-initio simulation of novel solid electrolytes
All solid-state batteries may be a solution to some of the problems facing conventional organic electrolytes in Li and Na-ion batteries, but typically conductivities are very low. Reports of fast lithium conduction in Li 0GeP 2S1 2 (LGPS), with conductivity of 12 mS/cm at room temperature, have …
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Mechanisms of Metal Penetration in Solid Electrolytes
… is the mechanism by which metals infiltrate solid electrolytes during electrodeposition. A deep understanding of this phenomenon in Li+-conducting solid electrolytes could determine whether these materials can enable fast-charging (> 3 mA cm⁻²) solid state batteries that are safer and more …
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MULTILAYER COMPOSITE SOLID ELECTROLYTES FOR LITHIUM ION BATTERIES
… mobile phones to cars. The conventional liquid electrolytes based LIBs are prone to failure in conditions such as high operating temperature, solvent leakage, lithium dendrites formation and thermal runaway, etc. All-solid-state lithium ion batteries (ASSLIBs) provide a promising power strategy …
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AB INITIO SIMULATIONS OF IDEALIZED SOLID ELECTROLYTES IN LITHIUM ION BATTERIES
… work is to develop a detailed understanding of solid
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Design, Development and Structure of Liquid and Solid Electrolytes for Lithium Batteries
… safety and energy density. Historically, aqueous electrolytes were the norm in the battery industry. Prior to the development of lithium batteries, most commercially significant batteries used water as the solvent. In the past decade, "highly concentrated" electrolytes resurrected the notion of an …
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Ab initio investigations of solid electrolytes for lithium- and Sodium-ion batteries
Solid-state electrolytes have the potential to dramatically improve the safety and longevity of state-of-the-art battery technology by replacing the flammable organic electrolytes currently employed in Li-ion batteries. Recent advances in the development of new thiophosphate electrolytes have …
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Understanding surface reactivity, local structure, and lithium-metal dendrite initiation in garnet solid electrolytes
Solid electrolyte-based lithium-ion batteries can enable long lasting and safe energy storage devices with high energy densities. Out of the many solid electrolytes explored to date, doped Li₇La₃Zr₂O₁₂ (LLZO) garnets have high room temperature ionic conductivity and wide electrochemical stability …
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Investigation of the crystal structure, elemental composition and peculiarities of ionic transport in Li+ solid electrolytes /
… structure and elemental composition of lithium solid electrolytes on their electrical properties are investigated in the dissertation. The technological conditions of lithium solid electrolyte ceramics‘ fabrication (synthesis and sintering) are described. Also the results of the investigation of …
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SOLID-STATE NMR INVESTIGATION OF STRUCTURE AND DYNAMICS OF SOLID ELECTROLYTES AND COATINGS FOR LI-ION BATTERY APPLICATIONS
… the inherent safety risks of current flammable electrolytes and avoid large battery fires. Potential solutions include solid state batteries in which the organic solvent is replaced by a polymer or inorganic solid electrolyte. Cubic Li7La3Zr2O12 (LLZO) is a solid electrolyte of interest due to …
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Ionic conductivity transitions in antiperovskite ionic conductors
High-performance solid electrolytes are critical for realizing all-solid-state batteries with enhanced safety and cycling efficiency. However, the relatively low ionic conductivity of most solid state electrolytes has been considered as the major challenge. Antiperovskite(AP) electrolytes are …
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Development of Li0.33La0.56TiO3 based Solid Electrolyte Materials
… higher electrochemical performance and safety, solid electrolytes play a significant role in increasing safety owing to less risk of electrolytes leakage and a wider electrochemical window for higher energy density. Among various materials, inorganic ceramic solid electrolytes lead the intention …
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Solid state electrochemical processes for nanofabrication
… these challenges, this thesis primarily examines solid state nano manufacturing pathways using ion conductive solid electrolytes, to develop a cost effective, simple alternative to state of the art direct writing techniques (e.g. Ebeam lithography and Focus ion beam lithography). First, a solid …
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Physical and electrical properties of Li1+xTi2-xAlx(PO4)3 and Li1+2xTa1-xAlx+1(PO4)3 electrolytes
… conducting materials (NASICON) are promising solid electrolytes for Li-ion rechargeable batteries. In this study, two compositions; lithium titanium aluminium phosphate (LTAP), Li1+xTi2-xAlx(PO4)3 (x = 0.0, 0.2, 0.6, 1.0) and lithium tantalum aluminium phosphate (LTaAP), Li1+2xTa1-xAlx+1(PO4)3 …
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Physical and electrical properties of Li1+xTi2-xAlx(PO4)3 and Li1+2xTa1-xAlx+1(PO4)3 electrolytes
… conducting materials (NASICON) are promising solid electrolytes for Li-ion rechargeable batteries. In this study, two compositions; lithium titanium aluminium phosphate (LTAP), Li1+xTi2-xAlx(PO4)3 (x = 0.0, 0.2, 0.6, 1.0) and lithium tantalum aluminium phosphate (LTaAP), Li1+2xTa1-xAlx+1(PO4)3 …
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HIGH MODULI POLYMER GELS AND NON-AQUEOUS ELECTROLYTES WITH MUTLI-IONIC LITHIUM SALTS HAVING HIGH THERMAL STABILITY AND LITHIUM ION TRANSFERENCE NUMBERS
… approach to be discussed is the development of solid electrolytes/separators to address this safety issue. The major drawback with most of the solid electrolytes/separators is that they have very low conductivity and lithium ion transference number (tLi+)values. Transference number of an ion by …
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Oxygen Transport in Vapor-Deposited Tin-Doped Indium Oxide Films (Diffusion, Electrochemical)
… vapor deposited on yttria-stabilized zirconia solid electrolytes. Oxygen transport through the films was monitored between 1100 and 1300(DEGREES)K near atmospheric oxygen pressures using electrochemical techniques. An attempt was made to correlate the transport data to a diffusion model based …
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Novel NOx sensing technology determining value by looking at patent potential and possible partnerships
… carbonate electrolyte as opposed to sensors with solid electrolytes, which are generally used. While the science of the sensor is still under development, Cima has targeted diesel engines for implementation. The purpose of this thesis was to assess the value of the technology and suggest possible …
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