Battery Failure Analysis Case Studies
Recorded On: 05/06/2020
Understanding battery failure mechanisms is vital for mitigating failures. Models can try to quantify damage but will always fall short because they cannot determine or account for the actual cause of the damage. Scientists and engineers can use non-destructive tests to make assumptions as to why the damage is occurring, but a thorough failure analysis is required to find the root cause. Failure mechanisms of all batteries will be similar regardless of whether the batteries are powering small medical devices or supporting the grid.
This webinar recording features battery failure case studies. There is also an overview of Intertek's basic failure analysis investigation methodology, explanations of how each test works and why Intertek performs them. The methodology shared in this recording combines both nondestructive electrochemical testing and a deconstructive analysis, providing qualitative and quantitative information about the potential failure mechanisms. Intertek's deconstructive analysis includes disassembly of the cell and examination of the battery components via microscopy. Being able to see the physical damage and evaluate the cell construction and material quality often provides the most insight when trying to determine a root cause. Dr. Taylor Kelly demonstrates examples of past analyses and explains the failure mechanisms.
Ph.D., Director, Energy Storage, Intertek
Dr. Taylor Kelly is a Materials Scientist and the Director of Energy Storage with Intertek AIM’s Engineering Consulting Group. She leads a team of mechanical, materials, and environmental engineers and data scientists to provide condition and life assessments of battery assets by leveraging her team’s experience in testing, inspections, and big data analytics.
In addition to her work in Energy Storage, Dr. Kelly works closely with the Field Engineering team managing and coordinating Intertek AIM’s inspection services for various power generation projects.
John Hasier (Moderator)
Senior Scientist – Materials Science & Failure Analysis, Intertek Engineering Consulting
Dr. Hasier earned his Ph.D. in Materials Science and Engineering from the Illinois Institute of Technology, where he gained experience in physical metallurgy of structural and functional materials. He has a B.S. in Physics from Caltech. His experience includes mechanical testing, thermomechanical process simulation, nondestructive testing, alloy design, cryogenic, high pressure and high temperature systems, electrochemical testing, and energy storage material characterization and active material design. He is currently employed by Intertek AIM where he provides failure analysis, testing, design, and engineering support for the energy sector.