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 60 for “"Lithium metal"”.
-
Self-healing Polymers for Lithium Metal Batteries
L'abstract è presente nell'allegato / the abstract is in the attachment
-
Nuclear Magnetic Resonance Studies of Lithium Metal Anodes
Lithium metal has received a renewed interest as a promising anode material for next-generation, high-energy batteries owing to its high specific capacity (3860 mAh g-1) and low reduction potential (-3.04 V vs. the standard hydrogen electrode). However, lithium metal batteries suffer from low …
-
Ionic Liquids for High Performance Solid-state Lithium Metal Batteries
… has driven the growth of high-performance lithium metal batteries, but this has also raised serious safety concerns. In response, ionic liquids (ILs) have become a popular choice due to their high ionic conductivity, non-flammability, and ability to facilitate the formation of stable solid …
-
Interface Engineering and Substrate Design for Anode-free Lithium Metal Batteries
Lithium metal batteries (LMBs), especially anode-free LMBs, have gained renewed attention because lithium metal offers an ultrahigh theoretical capacity (3860 mAh g-1) and the lowest electrochemical potential (−3.04 V versus the standard hydrogen electrode) among common metal anodes. These merits …
-
Hybrid Ionogels and Self-Healing Electrolytes: Innovative Solutions for Safer Lithium Metal Batteries
L'abstract è presente nell'allegato / the abstract is in the attachment
-
Understanding and Improving Electrode|Polymer Electrolyte Interfaces for High-Voltage Lithium Metal Batteries
Lithium-ion batteries (LIBs) have transformed modern society as a ubiquitous power source for applications ranging from portable electronics to electric vehicles and grid-scale energy storage. However, conventional LIBs, which rely on flammable non-aqueous liquid electrolytes (LEs), are approaching …
-
Enabling safe and stable cycling of lithium metal batteries using advanced electrolytes and interfaces
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2023-05-01
-
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 …
-
Concentration-Dependent Thermodynamics and Kinetics in Lithium-Metal Battery Electrolytes: Implications for Coulombic Efficiency
Lithium (Li)-metal batteries (LMBs) present a promising avenue for high-energy applications. However, their practical adoption is constrained by challenges such as dendrite formation and unstable interphases. This study investigates the intricate interplay between electrolytedependent …
-
Characterization and Quantification of Solid Electrolyte Interphases for Composition-Functionality Relationships at Lithium Metal Electrodes
Lithium (Li) has the lowest electrochemical reduction potential and density of any metal, making it an exceptionally desirable anode material for batteries and a powerful chemical reductant. However, the reducing nature which makes Li so useful brings challenges: it is thermodynamically unstable in …
-
Chemistry, Transport and Function of Ionic Phases in the Solid Electrolyte Interphase on Lithium Metal Anodes
Lithium (Li) metal anodes in liquid electrolytes suffer low Coulombic efficiency (< 99.9%) arising from the chemically inhomogeneous nature of the native solid electrolyte interphase (SEI), which impedes smooth Li plating and leads to excessive electrolyte consumption. Despite much attention paid …
-
Investigating the Interfacial Evolution of Lithium Metal in Anode-Free Batteries with Liquid and Solid-State Electrolytes
Lithium-ion batteries (LIBs) have powered consumer electronics for decades, and continued improvements have enabled the rapid growth of the electric vehicles (EV) market. However, increased energy density and specific energy are necessary to facilitate further expansion of EV market share and for …
-
Molecular Elucidation of Reaction Mechanisms in Aluminum & Lithium Metal Batteries by Solid-State NMR Spectroscopy and Electrochemical Methods
… emphasize high energy densities. Aluminum and lithium metal batteries hold great promise for next-generation energy storage due to their large specific capacities (2980 mA h g<sup>-1</sup>, and 3860 mA h g<sup>-1</sup>, respectively). In particular, aluminum metal is low cost, has high earth …
-
In-situ investigation of lithium dendrite growth and its interactions with a polymer separator in a lithium metal cell
Lithium dendrites are metallic structures that initiate and grow inside a lithium battery duringcharging. Lithium dendrite growth can negatively affect battery cycle life and safety. Observing the dendrite growth process and revealing its interaction with other components is necessary to improve …
-
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 …
-
Local excitons in insulators and impurity doped metals
… some alkali-halide insulators and impurity doped lithium metal are calculated using atomic clusters to simulate the bulk solid. The calculations are ab initio and use unrestricted Hartree-Fock and second order many body perturbation techniques. Accurate results are obtained for sodium fluoride by …
-
Improvements on physics-informed models for lithium batteries
… areas undergoing this development include lithium-ion energy storage. This is inclusive of electrochemical design improvements and advanced battery management control architectures. Field objectives for these developments include but are not limited to, reductions in cell degradation, …
-
Block Copolymer-derived Porous Polyimides and Carbon for High-Performance Energy Storage
… i) high-modulus polyimide separators for lithium-metal batteries, and ii) high-surface-area carbon electrodes for fast-charging zinc-ion batteries. In lithium-metal batteries, the dendritic growth of lithium leads to deteriorating performance and severe safety concerns. Suppressing lithium …
-
NMR Studies of Interfacial Reactions in Lithium-Ion Batteries
… is essential for enabling longer lasting lithium-ion batteries. In this work, solution- and solid-state nuclear magnetic resonance (NMR) methodologies are developed for studying the electrode-electrolyte reactions. The decomposition reactions of the electrolyte solution at positive …
-
Redox and complexation chemistry in chloride ionic liquids and molten salts
… also offer a direct route to produce high purity lithium metal which is a critical resource for a variety of green energy applications. Despite the demand to describe the complicated chemical environment in molten salts, research on molten salt chemistry is hindered by the difficulty of performing …
Page 1 of 3