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 9 of 9 for “"Battery safety"”.
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In-situ investigation of lithium dendrite growth and its interactions with a polymer separator in a lithium metal cell
… 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 battery safety. This study uses a …
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Machine Learning and Data-Driven Analysis of Thermal Runaway Characteristics in Lithium-Ion Batteries
… is the potential link between nickel content in battery chemistries and thermal runaway initiation temperatures. Higher nickel compositions, like in NCM811 and various NCA cells, tend to display lower initial self-heating temperatures, possibly indicating faster progression toward thermal …
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Microcapsule-based techniques for improving the safety of lithium-ion batteries
… electronics, new strategies for improving battery safety and lifetime are critical to the successful implementation of high-capacity, fast-charging materials required for advanced Li-ion battery applications. Currently, the presence of a volatile, combustible electrolyte and an oxidizing …
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Understanding of Molecular Interactions and Reversibility in Silylamines
… employ flammable electrolytes that pose safety concerns. Battery safety has become important as several incidents involving Li-ion battery fires have been observed. This issue could be addressed through a switchable battery electrolyte. Reversible ionic liquids (RevILs) could be used in …
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Cloud and digital-twin enhanced thermal safety framework for e-mobility battery management systems
… EV fires expose critical shortcomings in current battery management systems (BMS) and thermal controls. LIBs exhibit nonlinear characteristics sensitive to operating and environmental conditions, but existing BMS technologies rely solely on surface temperature measurements, neglecting core …
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Sahraei failure criteria for detection of short circuit in lithium-ion batteries
… Vehicle (EV) propulsion brings forth significant safety challenges, particularly in ensuring battery resilience under mechanical abuse and accidental impacts. A critical concern is the potential for internal fracture within battery cells, which can trigger short circuits, leading to thermal …
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Investigation of alternative batteries systems beyond lithium-ion batteries
… current Li-ion batteries are proposed to improve battery safety, energy density, C-rate, etc. Approaches towards such alternatives include the utilization of novel electrolytes, anode and cathode materials, and metal ion charge carriers in the battery system. The work presented here covers the …
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Linear and Nonlinear Electrochemical Impedance Spectroscopy for Lithium-ion Batteries
… physicochemical processes governing lithium-ion battery performance are critical for improving battery safety, cost, and lifetime. Electrochemical impedance spectroscopy (EIS) is a powerful and widely used technique for noninvasively characterizing many electrochemical systems including …
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DETECTING MECHANICAL DAMAGE FROM THE TIME CONSTANTS OF LI-ION BATTERIES
… However, they can pose serious hazards if their safety is compromised, such as after sustaining mechanical damage. An example of such loadings is an electric vehicle crash or a drone's impact landing. Prior work has shown that mechanical damage to the battery may not affect its voltage, capacity, …