The Investigation of Thermal Runaway Mechanisms in Solid Polymer Based Lithium-Ion Batteries

dc.contributor.advisorArdebili, Haleh
dc.contributor.committeeMemberLiu, Dong
dc.contributor.committeeMemberRodrigues, Debora F.
dc.creatorAli, Omar
dc.date.accessioned2018-03-13T12:50:04Z
dc.date.available2018-03-13T12:50:04Z
dc.date.createdDecember 2017
dc.date.issued2017-12
dc.date.submittedDecember 2017
dc.date.updated2018-03-13T12:50:04Z
dc.description.abstractLithium-ion batteries, due to their high energy densities and efficiencies, are highly suitable energy storage devices for a wide range of applications that include portable electronics and electric vehicles. However, there is a rising concern for the safety implications of current battery technology. Solid polymer electrolyte (SPE) based batteries can be used for stretchable and flexible applications and offer advantages in safety, thermal stability, and manufacturability. In this study, the thermo-electrochemical mechanisms in a battery based on SPE were investigated. Initially, current models for conventional Li-ion cells were examined and verified in COMSOL Multiphysics. Current thermal runaway simulations utilize conventional organic liquid electrolyte 18650 Li-ion cells. Parametric analysis was performed to enhance various model inputs and assess the implications of modeling SPEs. A new model was developed to incorporate flexible, thin-film batteries that utilize a SPE, polyethylene oxide (PEO). Simulation results show that thermal runaway is suppressed in a battery based on SPE, despite the presence of electrode decomposition events. A sensitivity analysis was also performed to assess various parameter influences on the model.
dc.description.departmentMechanical Engineering, Department of
dc.format.digitalOriginborn digital
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/10657/2940
dc.language.isoeng
dc.rightsThe author of this work is the copyright owner. UH Libraries and the Texas Digital Library have their permission to store and provide access to this work. Further transmission, reproduction, or presentation of this work is prohibited except with permission of the author(s).
dc.subjectLithium-ion batteries (LIB)
dc.subjectThermal modeling cells
dc.subjectMechanical engineering materials
dc.subjectSolid polymer electrolyte
dc.subjectBatteries
dc.titleThe Investigation of Thermal Runaway Mechanisms in Solid Polymer Based Lithium-Ion Batteries
dc.type.dcmiText
dc.type.genreThesis
local.embargo.lift2019-12-01
local.embargo.terms2019-12-01
thesis.degree.collegeCullen College of Engineering
thesis.degree.departmentMechanical Engineering, Department of
thesis.degree.disciplineMechanical Engineering
thesis.degree.grantorUniversity of Houston
thesis.degree.levelMasters
thesis.degree.nameMaster of Science
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