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ME Seminar: Sensing Techniques for High-Res Monitoring and Det. of State of Health (SOH) in Li-Ion. Sensing Techniques for High Resolution Monitoring and Detection of State of Health (SOH) in Li-ion Batteries Dr. Aleksandra Fortier December 6, 12pm - 1pm About the Speaker: Dr. Aleksandra Fortier is currently Research Scientist with University of Dayton Research Institute and prior AFOSR Summer Faculty Fellow at the Aerospace Systems Directorate, Wright Patterson Air Force Research Laboratory in Dayton, Ohio. From 2010-2016 she was Assistant Professor in the Department of Mechanical and Energy Engineering at University of North Texas Denton, Texas. She obtained B.S. (2005), M.S. (2006) and Ph.D. (2009) degrees in mechanical engineering and second M.S. (2009) in engineering management from Southern Methodist University Dallas, Texas. In addition, Dr. Fortier has been Visiting Faculty at University of Maryland, Mechanical Engineering Department working at the Center for Advanced Life Cycle Engineering (CALCE). Before joining academia, she worked as Research, Application, and Design Engineer in industry for 5 years. Her research background spans the area of reliability and life-cycle performance of electronics, with focus on processing, design, and properties of engineering materials that find direct application in energy storage devices. Her research work has been published in over 40 peer-reviewed journals, conference proceedings, and technical presentations and currently, 3 patents applications on her innovative work on material processing with additive manufacturing for design and integration of sensing techniques to predict state of health in electronic devices prone to reliability issues. About the Seminar: The research aims towards development of smart materials and structures for high fidelity sensing systems that will provide real-time state-of-health (SOH) information to mitigate catastrophic failures such as thermal runway in aircraft batteries. Current aerospace-grade battery monitoring systems (BMS) do not provide adequate enough information in real-time to mitigate battery failures at the cell-level, such as thermal runway caused by short-circuiting, over-charge, or over-current situations. The lack of reliability in the BMS has led to battery safety and protection concerns for incorporating high energy Li-ion technology onto aircraft. These failures typically initiate and/or occur at the electrode/separator interface, which is commonly related to material degradation behavior, such as dendrite growth that can lead to electrical short-circuiting within the cell, and formation of unstable solid electrolyte interface layer. In an effort to mitigate failures in lithium-ion batteries this talk will introduce the state of health concept, formation of smart structures and design challenges, and then present recent advances achieved in sensing design and implementation, especially under different battery scenarios. Other research projects that Dr. Fortier has worked on previously relating to reliability issues in electronic and biomedical devices will be briefly covered.
For more information, contact Prof. Abhijit Dasgupta at dasgupta@umd.edu.
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