Date of Award
2023
Document Type
Campus Access Master's Thesis
Degree Name
Master of Science in Mechanical Engineering (MS)
Administrative Home Department
Department of Mechanical Engineering-Engineering Mechanics
Advisor 1
Paul Bergstrom
Advisor 2
Wayne Weaver
Committee Member 1
Stephen Hackney
Committee Member 2
Jeffrey Naber
Abstract
In the ever-expanding field of energy storage, specifically that of lithium-ion batteries, the need to run concise tests to derive accurate parameters that can simulate these batteries becomes more and more crucial. This research focused on improving current test procedures by investigating variations of common test procedures to reduce testing time, the impact of the test used on prediction, and the effects of varying the definition of the parameters (i.e. current dependent, look-up table). Key findings of this work include decreasing the recommended rest time in the HPPC test to 15 minutes maintains the same level of accuracy, including C-Rate dependent parameters improved the model’s performance and captured hysteresis effects, and using a modified HPPC achieves an equivalent C-Rate dependent model to that of running multiple HPPC tests, drastically decreasing test time. Additionally, using this model paired with entropic heating estimation can get thermal accuracy within 1°C.
Recommended Citation
Canull, Logan R., "Enhancing Lithium-Ion Battery Equivalent Circuit Models: Innovations in Parameter Derivation and Simulation", Campus Access Master's Thesis, Michigan Technological University, 2023.