Showing 29–32 of 143 results
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Passive Mitigation of Thermal Runaway Propagation in Dense 18650 Lithium Ion Cell Assemblies
Utilization of lithium ion batteries (LIBs) in various applications has been growing exponentially. LIBs offer some distinct advantages including high energy density, outstanding efficiency, long lifespan, and fast charging capability. Probably, the main disadvantage of LIBs is that a small deviation from normal operating condition may result in rapid self-heating accompanied by ejection of large quantities of flammable materials, which can cause fire or explosion. The failure process becomes more dramatic when many cells are arranged in large arrays in order to fulfill the power requirements by most of applications. Failure of a single cell can release sufficient energy to trigger failure into adjacent cell, which subsequently propagates throughout the entire array. In this webinar, a set of passive strategies to mitigate failure propagation will be presented. The dynamics, heating rates, gaseous emissions, and energetics of thermally induced thermal runaway propagation in dense arrays consisting of 12-15 fully charged 18650 lithium ion cells have been quantified to determine the effectiveness of these passive mitigation strategies.
This webinar will focus on the following key topics:
• Thermal runaway in lithium ion batteries
• Thermal runaway propagation in lithium ion battery packs
• Hazards associated with failure propagation
• Passive mitigation strategiesPresenter
Ahmed Said – Postdoc Fellow, Worcester Polytechnic InstituteAhmed Said is a post-doctoral fellow in the Department of Fire Protection Engineering at Worcester Polytechnic Institute. He Obtained his PhD from the Department of Mechanical Engineering at the University of Maryland, College Park, in 2020. He is broadly interested in fire and combustion science problems. More specifically, his research is centered on thermal and fire safety of energy storage systems, material flammability, fire spread on façade systems, and wildland fires.
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Fundamentals of Electrochemical Impedance Spectroscopy and Application to Li-Ion Batteries
Electrochemical Impedance Spectroscopy (EIS) is a high-information content technique that provides insight into complex systems. EIS has gained tremendous popularity since innovation with the line of Frequency Response Analyzers from Solartron Analytical – but remains intimidating to many users. Join this webinar to gain confidence in your understanding of the technique itself and its application to the Li-Ion battery activity chain. EIS is used to: 1.) study diffusion characteristics and SEI formation during material development, 2.) identify degradation modes, ESR, State-of-Charge during cell characterization, and 3.) rapid grade State-of-Health during modules evaluation.
This webinar will focus on the following key topics:
• Fundamentals of data acquisition and data analysis of EIS
• How EIS theory is applied in practice by beginners and experts
• The value of EIS as a tool in evaluation of Li-ion batteries
• How AMETEK’s portfolio meets uniquely defined needs at different points of the value chainPresenter
Rob Sides – Applications Architect at AMETEKRob Sides presents here as part of AMETEK, a global enterprise supporting electrochemical research through its Princeton Applied Research and Solartron Analytical brands. He joined AMETEK after achieving his Ph.D. from University of Florida in 2005, where he authored several original research papers, presentations, invited reviews and book chapters on the fabrication and characterization of Li-ion battery electrodes using DC and EIS-based methods. At AMETEK, Rob has held several roles across different functional groups of Applications, Sales/Marketing and Product Management. His background provides a depth and breadth of experience to present both fundamentals and solutions to the most challenging problems.
AMETEK is a proud sponsor of this event.
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Cause Analysis for Performance Degradation of LIBs and Analytical Methods for All Solid-State Batteries
In Part 1, we showcase the analytical approaches of cause analysis for performance degradation of Lithium-Ion Batteries (LIBs). By the combination of electrochemical and teardown analysis, we’ll get you to find the main cause of performance degradation, and help you improve the materials optimized for the charge/discharge conditions.
Part 2 covers various analytical methods of sulfide/oxide based All Solid-State Batteries (ASSBs), in terms of composition of solid electrolyte, coverage ratio of coating layer on cathode, and component distribution in cells. In addition, brand-new analytical methods such as in situ SEM will be presented, which will expedite your R&D.
This webinar will focus on the following key topics:
• Cause analysis for performance degradation of LIBs
• Comprehensive estimation of performance degradation, and electrochemical and teardown analysis of LIBs
• Useful analysis for material development/process optimization of ASSBs
• Use cases for sulfide/oxide based solid electrolyte, and coating layer on cathode
• Cutting-edge analytical methods: in situ analysis/micro analysisPresenters
Yasuhito Aoki – Researcher at Toray Research Center
Masahiro Saito – Researcher at Toray Research CenterYasuhito Aoki is a researcher at Toray Research Center. He has been working on material analysis of battery related materials using Raman and infrared spectroscopy.
Masahiro Saito is a researcher at Toray Research Center. He has been working on material analysis of sulfide/oxide solid electrolyte using surface analysis (mainly RBS/NRA).
Toray Research Center, Inc. is a proud sponsor of this event.
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Advanced Test Methods for Isothermal and Adiabatic Battery Calorimetry
This presentation describes two main types of calorimetric techniques that can be used to carry out performance and safety testing on lithium-ion and other high-energy batteries.
The first half of the presentation introduces isothermal calorimetry; the various types of instruments, the method of operation and examples of data which can be obtained, including new developments from THT.
The second half of the presentation covers battery testing methods for the ARC® adiabatic calorimeter system. The theoretical background of the test method is described and recommended practices for various types of testing are discussed.
The presentation also mentions complementary test methods that can be integrated with calorimetry to provide even more useful analysis, and new developments in test equipment from THT.
This webinar will focus on the following key topics:
• Principles of isothermal and adiabatic calorimetry testing for high-energy batteries
• Advantages and limitations of these two methods
• Discussion of different test types and results
• Recommended testing practices, limitations, future developmentsPresenter
Danny Montgomery – Technical Performance Manager at Thermal Hazard TechnologyDanny Montgomery has worked in Thermal Hazard Technology UK for 13 years. He joined the company after graduating from Southampton University with a master’s degree in physics.
His current position is Technical Performance Manager. He manages THT’s test lab and continues to expand THT’s testing capability into new areas of interest for a range of high-profile clients.
As well as managing the lab, Danny is involved with technical support, installation and training for THT’s calorimeter systems. He has provided training for major international companies such as Panasonic, LG, Samsung, BMW and Underwriters Laboratory.
Thermal Hazard Technology (THT) is a proud sponsor of this event.
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