Showing 45–48 of 49 results
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The Role of All-Solid-State Batteries for Grid Energy Storage
All solid-state batteries (ASSBs) are widely believed to be a promising technology for next-generation energy storage. While Li-ASSBs are slated to serve the electric vehicles market, Na-ASSBs are a promising technology for electrical grid storage due to their lowered costs and longevity. Prevailing obstacles to commercialization include poor cathode interfacial stability, and the lack of a robust sodium anode, in addition to low areal capacities. In this webinar, we will discuss design strategies to enable stable interfaces, as well as utilize sodium alloy-based anodes to enable ASSBs with higher energy densities, longer cycle life, and longer calendar life.
This webinar will focus on the following key topics:
• State-of-the-art Na solid-state batteries and their role for grid energy storage applications
• Low cost, novel solid electrolytes enabling long cycle life via interface stabilization
• Na alloy-based anodes eliminating dendrite formation and enabling wide temperature operation
• Processing considerations to achieve high areal capacities for high energy densitiesPresenters
Darren H. S. Tan – Co-Founder at UNIGRID LLC
Dr. Erik A. Wu – CTO at UNIGRID LLCDarren H. S. Tan is a Co-Founder of UNIGRID LLC, an energy storage company based on cutting edge ASSB technologies. He is a PhD candidate leading the ASSB research work at UC San Diego at the Sustainable Power and Energy Center (SPEC).
Dr. Erik A. Wu is the Chief Technology Officer of UNIGRID LLC, where he leads the development of Na-ASSBs for large scale grid energy storage applications, and is a recent alumnus of the Laboratory of Energy Storage and Conversion at UC San Diego.
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How to Safely Select DC Fuses for EES Systems
Proper selection of direct current (DC) overcurrent fuses is not as simple as it may seem, and several factors need to be looked at for proper selection. Design engineers need to look at many different things such as what we’re protecting, system voltage changes, circuit fault currents, minimum breaking currents, mechanical requirements, temperature deratings, system operation regarding cycling, etc. All of these and other factors need to be taken into consideration to safely select the proper DC fuse for each unique application. This presentation will take you through the basics of DC and AC fuses, DC circuit protection methods, and review EES fuse selection along with a case study. With the rapid growth of Electrical Energy Storage systems being implemented and deployed, we see an opportunity to educate everyone on this topic.
This webinar will focus on the following key topics:
• Fuseology
• Fuse Selection Practices
• DC Circuit Protection
• EES Fuse Selection Methodology
• Case StudyPresenter
Cynthia Cline – Principal Solutions Engineer at MersenCynthia Cline, is Mersen’s Principal Solutions Engineer and has over 35 years of experience with customer applications and providing detailed circuit analysis to meet customer needs with AC and DC fuse protection. She is also active with codes and standards for UL and IEC protection products. She graduated with a degree in Electrical Power Systems from Michigan Technological University.
Mersen 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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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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