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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 21 for “"Solid-state electrolytes"”.
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Critical current density in hot-pressed garnet Li7La3Zr2O12 solid state electrolytes
… caused by lithium metal anode, many kinds of solid state electrolytes are reported. Garnet Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12 </sub>has high chemical and electrochemical stability with lithium metal, its shear moduli is also higher than most membrane materials, so it is one of …
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Organic electrodes and solid-state electrolytes for lithium electrochemical energy storage
… design guidelines for positive electrodes and solid-state electrolytes to address these challenges. The positive electrode is one of the main limitations to improving both the capacity and cost of lithium-ion batteries. Organic molecules represent a class of materials, which if selected …
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Scalable Synthesis of Solid-State Electrolytes Using Flame-Assisted Spray Pyrolysis
… the liquid electrolyte with a non-flammable solid-state electrolyte (SSE), which enables the use of high voltage cathode materials and a lithium metal anode, thereby greatly improving the power and energy density of the battery. Of the various chemistries being considered for solid-state …
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Two-Dimensional Titanium Carbide MXene for Lithium-ion Conductive Solid-state Electrolytes
… of polymer-based lithium-ion conductive solid-state electrolytes (SPEs) incorporating two-dimensional (2D) titanium carbide (Ti3C2Tx) MXene as a nanofiller. 2D Ti3C2Tx MXene was synthesized using a mild etching approach involving low-toxicity acids, enabling a safer and more …
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Investigating the Interfacial Evolution of Lithium Metal in Anode-Free Batteries with Liquid and Solid-State Electrolytes
… they can be assembled in their fully discharged state like LIBs. To enable anode-free batteries, it is important to gain a fundamental understanding of Li nucleation and growth mechanisms as well as subsequent stripping mechanisms on bare current collectors. This thesis work focuses on …
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Synthesis and Electrochemical Performance of Lithium Lanthanum Titanate Solid-state Electrolyte
… with higher energy capacity and safety, solid-state electrolytes play an important role in improving ionic conductivity and preventing leakage in lithium-ion batteries. Lithium lanthanum titanate (Li3xLa2/3–xTiO3, LLTO) is a ceramic oxide solid-state electrolyte material, which has …
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Development Of Ionic Liquid Swelled Poly-Electrolyte Membranes For Use In Dye-Sensitized Solar Cells
… with the high stability of low vapor pressure solid-state electrolytes, leading to a high performance and an improved longevity in DSSC electrolytes. A factorial design was implemented to determine the effects of polymer type, polymer molecular weight, ionic liquid loading and ionic liquid …
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Ion transport and structure of layer-by-layer assemblies
… various architectures were examined as potential solid state electrolytes for electrochemical systems (e.g. batteries and fuel cells). The relationship between materials properties and ion transport within LbL films was investigated in three systems, described below. The observed structure and …
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FIRST-PRINCIPLES INVESTIGATION OF ELECTRONIC PROPERTIES IN SODIUM-ION ELECTROLYTES FOR SOLID-STATE BATTERY MATERIALS
… the electronic properties of sodium-ion electrolytes using first-principles calculations. The core of these calculations is built upon a functional understanding of the relationship between quantum mechanics and the crystalline geometries that contribute to unique properties of materials …
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FIRST-PRINCIPLES SIMULATIONS OF SOLID STATE BATTERY MATERIALS
… work materials with possible applications in all solid state Li-ion batteries are explored using computational methods within the framework of density functional theory and kinetic Monte Carlo. The density functional theory simulations use fundamental quantum mechanics along with some …
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Structure and Ionic Conductivity Properties of Ionic Liquid@Metal—Organic Framework Composites
… materials have been proposed as a candidate for solid-state electrolytes, combining the inherent non-flammability, high ionic conductivity, and high thermal and chemical stability of the ionic liquid with the host-guest interactions of the MOF. Although there is a large degree of chemical …
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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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MULTI-LAYERED, VARIABLE POROSITY SOLID- STATE LITHIUM-ION ELECTROLYTES: RELATIONSHIP BETWEEN MICROSTRUCTURE AND LITHIUM-ION BATTERY PERFORMANCE
… and overall battery performance. The advent of solid-state electrolytes with multi-layered, variable porosity microstructures opens new avenues to creating the next generation of rechargeable batteries, while creating new challenges for device integration and operation. In this dissertation, …
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A study of the synthesis, structure, and ionic conductivity of sodium and lithium lanthanide pyrosilicates, A3LnSi2O7
… adapted to accelerate the discovery of new solid state electrolytes for application in all solid state batteries.
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Electro-chemo-mechanical instabilities at interfaces in al-solid-state lithium-ion batteries
Inorganic solid-state electrolytes (SSEs) could replace flammable liquid electrolytes and improve the safety of Li-ion batteries. Furthermore, these SSEs could enable metal anodes, providing a significant improvement in cell-level energy density compared to the state-of-the-art. Recent improvements …
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High Entropy Amorphous and Crystalline Li-Garnet Films for Lithionic Applications
Safe, reliable, and Li+-conductive solid-state electrolytes are considered the key to unlocking the potential of solid-state and hybrid batteries, as well as lithionic devices beyond batteries, such as memristors and environmental gas sensors. The materials class of Li-garnet-type Li7La3Zr2O12-d …
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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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Ionic Liquids for High Performance Solid-state Lithium Metal Batteries
… ability to facilitate the formation of stable solid electrolyte interphase (SEI) layer. Understanding the challenges faced by lithium metal batteries and the role of ILs in them is vital to improving their performance. This study examines how ILs affect key factors such as ionic conductivity, …
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Influence of lattice dynamics on the ionic conductivity and stability of solid-state lithium-ion conductors
… however their current use of liquid electrolytes negatively effects their lifetime and safety. Furthermore, the liquid electrolyte's potential stability window, thermal stability, and volatility are of particular concern in these large-scale applications. Solid-state electrolytes are …
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