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 27 for “"Battery chemistries"”.
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Analysis of the impact of automaker strategies on lithium price elasticity using a novel bottom-up demand model
… technical insights of current and emerging battery chemistries to bottom-up economic demand modelling to generate forecasts of lithium demand and price elasticity of that demand. Detailed analysis on automaker electrification strategies, regional breakdown, vehicle class composition, and …
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Design and characterization of advanced battery technologies and mechanistic studies of the oxygen reduction reaction for fuel cells
… electric vehicles. Alternatively, altogether new battery chemistries that promise higher energy densities can be employed. Chapters 2-6 of this thesis investigate two battery chemistries, the Li-O2 and Mg-ion batteries, which have higher theoretical energy densities than current Li-ion batteries. …
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Molecular-Level Understanding of Ionic & Electronic Charge Storage Mechanisms in Rechargeable Aluminum Batteries Using Sold-State NMR
… anions) in different rechargeable aluminum battery chemistries such as Al-Mo<sub>6</sub>X<sub>8</sub> (X=S, Se), Al-MoO<sub>2.8</sub>F<sub>0.2</sub>, Al-sulfur, Al-polymer, and Al-organic batteries, etc. Our research is mainly focused on these positive electrode materials for use in …
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Deep transfer-learning based lithium-ion battery fault diagnosis
… tuning and is also adaptable to varying battery chemistries and performs well with a small amount of available data. The framework leverages voltage residuals generated via a randomly initialized or pre-trained LSTM (Long Short Term Memory) model. Experimental results show its ability to …
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Powertrain technology and cost assessment of battery electric vehicles
… combinations of new electric machines and battery chemistries. Cost assessment is also presented to address the major challenge of EV commercialization. This assessment is based on two popular vehicle classes: subcompact and mid-size. Fuel, electricity and battery costs are taken into …
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The optimal reverse logistics network for consumer batteries in North America
… the viability of recycling for particular battery chemistries, collection methods, recycling methods, the current legislative environment, and the incentives to participate in the reverse logistics network for the various stakeholders identified. This document culminates in the explicit …
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Machine Learning and Data-Driven Analysis of Thermal Runaway Characteristics in Lithium-Ion Batteries
… Manganese) and NCA (Nickel Cobalt Aluminum) chemistries. Utilizing data analysis and machine learning on approximately 400 data points, it gives insights into thermal runaway dynamics, focusing on characteristic parameters such as onset temperature of self-heating (T1), onset temperature of …
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Sustainable battery engineering: single-step battery recycling, battery modeling, and battery electrolyte analysis
The application of battery systems is continually growing. An energy device originally just found in phones and laptops moved to electric vehicles and continues to move on into other applications on earth and potentially in space. As batteries become more prolific, the problems surrounding …
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A generalized form for frequency-response modeling of battery energy storage systems
… impedance behavior of three commercial battery chemistries: a 1.5 Ah lithium-ion (LiFePO4), a 5 Ah lithium-ion (NMC811), and a 1.5 Ah sodium-ion (NaFePO4) cell. An extensive experimental protocol was executed, subjecting the cells to conditions including temperatures from −20°C to +60°C, …
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Assessment of fire and explosion hazards in large-scale battery energy storage systems intended for Namibian green hydrogen projects
The integration of large-scale battery energy storage systems (BESS) is a pivotal component in advancing Namibian green hydrogen projects, aimed to promote sustainable energy solutions. But there are serious fire and explosion risks associated with the use of Battery Energy Storage Systems, …
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Techno-economic modelling and optimization of second life battery packs, with a particular focus on accommodating inhomogeneities and module-to-module variations
… of an optimized controller for second-life battery (SLB) packs, integrating heterogeneous State of Health (SOH) modules. The study begins by identifying prevalent lithium-ion battery chemistries and establishing a comprehensive modelling framework. Performance characterization is conducted …
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Strengthening Value Chains for Developing and DeployingBatteries in the Global South
… of the elements required to strengthen the battery industry in emerging markets. It articulates a synergistic approach to fostering resilient battery value chains that are critical for the sustainable energy transition in the Global South. The first part touches upon building a more …
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The development of novel services for battery storage in domestic applications and communal mini-smart grids
Lithium-ion battery technology remains a key factor in energy storage technology due to its advantageous features which include high energy and power density, low self-discharge, and longer lifespan. However, the continuous cycling of the battery over its lifetime results in gradual internal …
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Operando fibre Raman sensors for Li-ion battery chemistry
… but the complex and volatile nature of battery components makes the integration of diagnostic sensors non-trivial. Combining optical fibres and spectroscopy provides a chemically sensitive sensor that can be embedded directly into the battery with minimal disturbance to the cell …
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Understanding Failure Mechanisms using Multi-Scale Analyses to Improve the Performance of Zinc Metal and Lithium-ion Batteries
… batteries (LIBs) have dominated the rechargeable battery market for portable electronics for the past two decades because of their high energy density, power, and cyclability, and they are beginning to be implemented on a large scale for grid-scale energy storage systems and electric vehicles. …
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Electrochemical properties of crystalline polymorphs of MnO2 in aluminum and zinc metal batteries
… electrode materials for “beyond lithium-ion” battery chemistries. However, the electrochemical feasibility and charge storage mechanisms of alternative Al and Zn battery systems, particularly when paired low-cost positive electrode materials, must be investigated.</p> <p>In this thesis, …
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Enhancing the oxidation of Li₂O₂ in Li-O₂ batteries : mechanistic and chemical efficacy probing
… wind and solar, low-cost and high energy density battery chemistries such as lithium-oxygen (Li-O₂) are being vigorously pursued beyond Li-Ion. The present thesis reports on efforts to devise and understand reaction promoters to enhance the kinetics of charging of Li-0₂ cells for the purpose of …
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Economic valuation of energy storage coupled with photovoltaics : current technologies and future projections
… for PV coupling, including six different battery chemistries, hydrogen electrolysis with a fuel cell, compressed air, and pumped-hydro energy storage. In addition, these technologies are assessed in the capacity of enabling a solar energy generator to provide a set service requirement. …
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Learning the Electrochemistry of Degradation and Safety in Graphite Porous Electrodes for Lithium-ion Batteries
… time and cost requirements. However, modeling battery degradation is challenging as it not only is hard to visualize in-operando, but also affects cell performance at multiple scales - from single particle to porous electrode to the battery pack. Insights obtained from experimentation on a …
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Symmetry in Crystal Structure Prediction
… two binary systems, MgS and NaGe, with promising battery chemistries were investigated. For MgS, the stability of S-rich polysulphide compounds observed during charge-discharge cycles was probed. As well as this, the stability of the hypothetical MgS₂ structure, predicted in a previous study, was …
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