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.
Results
Showing 1 to 11 of 11 for “"LLZO"”.
-
Understanding surface reactivity, local structure, and lithium-metal dendrite initiation in garnet solid electrolytes
… explored to date, doped Li₇La₃Zr₂O₁₂ (LLZO) garnets have high room temperature ionic conductivity and wide electrochemical stability making them promising candidates for commercial applications. Despite receiving much attention, the surface reactivity, regeneration, local structure of …
-
Investigation of high-performance lithium-ion batteries based on highly conductive Li7La3Zr2O12 solid-state electrolyte and stable electrode-electrolyte interface
… mAh g−1), cubic phase garnet-type Li7La3Zr2O12 (LLZO) solid-state electrolyte has attracted much attention for developing solid-state batteries with increased safety, higher energy density, and longer lifespan. Besides, the solid-state or liquid electrolyte/electrode interface stability and low …
-
Understanding and Controlling the Degradation Mechanisms at Cathode-Electrolyte Interfaces in All-Solid-State Lithium-Ion Batteries
… (NMC622) cathode, and Li₇La₃Zr₂O₁₂ (LLZO) solid electrolyte. We evaluated thermal stability in controlled gas environments (Air, O₂, N₂, humidified O₂, CO₂) to identify contributors for secondary phase formations and their effect on charge transfer properties. Li₂CO₃, La2Zr2O7, and …
-
SOLID-STATE NMR INVESTIGATION OF STRUCTURE AND DYNAMICS OF SOLID ELECTROLYTES AND COATINGS FOR LI-ION BATTERY APPLICATIONS
… inorganic solid electrolyte. Cubic Li7La3Zr2O12 (LLZO) is a solid electrolyte of interest due to its high Li-ion conductivity for an oxide ceramic and expected stability against Li metal. Dopants (e.g. Ga, Al, Ge, Ta) are required to stabilize the faster conducting cubic phase, but the position …
-
High Entropy Amorphous and Crystalline Li-Garnet Films for Lithionic Applications
… class of Li-garnet-type Li7La3Zr2O12-d (LLZO) has garnered attention because of its high Li+ conductivities, wide electrochemical stability windows, and non-flammability. However, high-temperature sintering (>1050 °C) is generally required to achieve its highly conductive cubic phase …
-
Scalable Synthesis of Solid-State Electrolytes Using Flame-Assisted Spray Pyrolysis
… samples. Li6.25Al0.25La3Zr2O12 (Al-doped LLZO) was synthesized due to its impressive electrochemical stability and relatively high ionic conductivity. The effect of FASP parameters on the as-synthesized Al-doped LLZO powder and on the quality of pellets and thin-tapes was investigated, and …
-
MULTI-LAYERED, VARIABLE POROSITY SOLID- STATE LITHIUM-ION ELECTROLYTES: RELATIONSHIP BETWEEN MICROSTRUCTURE AND LITHIUM-ION BATTERY PERFORMANCE
… performance in dense-porous bilayer systems. LLZO-based garnet electrolytes were fabricated with varied porosity and characterized using 3D Focused Ion Beam (FIB) Tomography, enabling digital reconstructions of the underlying 3D microstructures. Ion transport through the microstructures was …
-
Continuum modeling of electro-chemo-mechanical phenomena in all-solid-state batteries
… the growth of Li-metal filaments in an inorganic LLZO electrolyte. We demonstrate the capacity to capture intergranular and transgranular crack and Li-filament growth, both of which have been experimentally observed. In doing so, we elucidate the manner in which mechanics and fracture of the SSE …
-
MULTILAYER COMPOSITE SOLID ELECTROLYTES FOR LITHIUM ION BATTERIES
… Li1.3Ti1.7Al0.3(PO4)3 (LATP), Li7La3Zr2O12 (LLZO) and Li0.5La0.5TiO3 (LLT). Their mechanical strength, ionic conductivity, ease of fabrication and synthesis, and economic expenses of synthesis were evaluated experimentally. The influence of sintering temperature, synthesis route, working …
-
Critical current density in hot-pressed garnet Li7La3Zr2O12 solid state electrolytes
<p>In lithium ion batteries, replacing graphite anode with lithium metal is one of the most promising ways to increase energy density. To avoid dendrite problems caused by lithium metal anode, many kinds of solid state electrolytes are reported. Garnet …
-
Towards Solid-State Hybrid Polymer Electrolytes by Innovative, Rapid, and Solvent-Free Procedures
L'abstract è presente nell'allegato / the abstract is in the attachment