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 20 of 31 for “"solid state electrolyte"”.
-
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 …
-
Reactive Sputter Deposition of Lithium Phosphorus Oxynitride Thin Films, A Li Battery Solid State Electrolyte
… films are widely studied and used as a thin film electrolyte for lithium ion battery applications. LiPON thin films may be prepared by many techniques, but RF sputter deposition is most frequently used and was investigated in this dissertation, in spite of its low deposition rate, because of it …
-
Investigation of high-performance lithium-ion batteries based on highly conductive Li7La3Zr2O12 solid-state electrolyte and stable electrode-electrolyte interface
… 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 …
-
Investigation into Lithium-Ion Conductivity and Redox Stability of Selenium-Doped Lithium Lanthanum Titanate
… investigate the potential of the material as a solid-state electrolyte in lithium-ion batteries. Impedance spectroscopy data yielded a maximum room temperature bulk conductivity of (1.73 ± 0.10) x 10⁻³ S cm⁻¹ (EBulk = 0.35 ± 0.03 eV) and grain boundary conductivity of (1.20 ± 0.10) x 10⁻⁴ S cm⁻¹ …
-
Scalable Synthesis of Solid-State Electrolytes Using Flame-Assisted Spray Pyrolysis
… due to the inclusion of a flammable liquid electrolyte. One solution being considered to improve LIB performance is to replace 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 …
-
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 …
-
New Forms of Defect Engineering in Silicon and Metal Oxide Semiconductors
The technologically useful properties of a solid often depend upon the types and concentrations of the defects it contains. Defects mediate foreign-atom diffusion in semiconductors, affect the performance of photo-active devices, the effectiveness of catalysts, the sensitivity of solid-state …
-
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, …
-
New mechanisms for defect engineering in titanium dioxide
The technologically useful properties of a solid often depend upon the types and concentrations of crystalline defects it contains. The concentrations of various defects can alter the electrical properties of a solid. Currently, defect engineering is applied extensively within the microelectronic …
-
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 …
-
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 …
-
Interfacial Tailoring of Lithium-ion Batteries by Atomic/Molecular Layer Deposition
… techniques, both proceeding in self-limiting gas-solid reactions and exhibiting excellent capabilities for ultra-thin films, conformal coatings, and controllable growth. They can be employed to address the problems of LIBs mentioned above by surface coatings, electrode designs, and solid-state …
-
Development and Characterization of Advanced Polymer Electrolyte for Energy Storage and Conversion Devices
… the myraid energy storage technologies, polymer electrolytes have been widely employed in diverse applications such as fuel cell membranes, battery separators, mechanical actuators, reverse-osmosis membranes and solar cells. The polymer electrolytes used for these applications usually require a …
-
Engineering Advanced Electrolyte and Metal Organic Framework Catalyst for Lithium Batteries
… However, the inherent instability of liquid electrolytes, the flammability risks associated with volatile solvents, and the insulating nature of the discharge product, lithium peroxide, which severely restricts operation to low current densities, are currently impeding the practical …
-
Nanomaterial design and fabrication for energy storage
… wireless communication. Microbatteries, such as solid-state Li-ion batteries have a larger potential energy density due to the removal of inactive binder and conductive additive materials in the electrodes. They also offer the potential for Li metal anodes and a cycle life (≥ 5,000). The …
-
Characterization of battery anode materials by X-ray and electron-based imaging techniques
… phones, laptops and electric vehicles. However, state-of-art Li-ion batteries with an energy density below 300 Wh kg-1 cannot meet the ever-increasing demands for lighter and safer batteries with longer life time and lower costs. Li batteries based on anode materials with higher specific capacity …
-
Development of Advanced Nanomaterials for Potential Lithium-Ion Battery Application
… materials, ZrO2, AlPO4 and LiTaO3 solid-state electrolyte, were developed by atomic layer deposition (ALD), for potential use to improve the chosen electrode materials. Deposition of these materials on different substrates, including NCNTs, graphene nanosheets, Si (100) and anodic …
-
Continuum modeling of electro-chemo-mechanical phenomena in all-solid-state batteries
Solid-State-Batteries (SSBs) present a promising technology for next-generation batteries due to their superior properties including increased energy density and safer electrolyte design. Traditional SSB-architecture features a Lithium-metal anode, a solid-state composite cathode, and a stiff …
Page 1 of 2