SPEAKER PRESENTATIONS
"Enabling High Current Densities at Low Temperatures"
ABSTRACT: TBA
Speaker: Tom Barbarich, Ph.D., Eagle Picher
"Advanced Materials and Prototype Solutions for Batteries in Extreme Cold Weather (ECW) Environments"
ABSTRACT: Batteries are limited by cold weather in multiple ways. Batteries will lose their charge over time in cold weather, have reduced current capacity when cold, and batteries may freeze in extreme cold temperatures. To overcome these limitations, U.S. Army DEVCOM Armaments Center (DEVCOM-AC) designed and fabricated passive, non-powered advanced insulation covers for BB2590 batteries used in many different military platforms. These advanced insulation cover prototypes can extend the BB2590 battery run times in ECW conditions simulated in laboratory chambers and have increased the continuous operation time in the field.
Speaker: Giuseppe di Benedetto, Ph.D., DEVCOM
"Insight from molecular modeling into low temperature battery electrolytes"
ABSTRACT: TBA
Speaker: Oleg Borodin, Ph.D., ARL
"Towards Lithium-Sulfur batteries"
ABSTRACT: Batteries for electric devices and vehicles anticipated to operate in low temperature regions. Their batteries must reliably operate at low temperatures in order to be useful in regions which experience harsh colds either seasonally or year-round. Lithium-Sulfur (Li-S) batteries are a potential future option for energy storage with high specific energy. However, like many other battery systems, Li-S performance deteriorates as temperatures plunge. A fundamental understanding of Li-S chemistry at reduced temperatures and how to influence that chemistry is important for future development of practical Li-S batteries. This talk explores the technique of chemically tethering lithium polysulfides and its impact on performance down to -10°C, and includes insight to Li-S performance at even lower temperatures by drawing from recent literature.
Speaker: David Burns, Ph.D., Johns Hopkins University Applied Physics Lab
Title: TBA
ABSTRACT: TBA
Speaker: Jennifer Herman, NASA Jet Propulsion Laboratory
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Speaker: Alexandra (Lexi) Karalekas, C5ISR
"Energy storage solutions from -80C to +100C"
ABSTRACT: Lithium (Li) metal has been considered as an ideal anode for high-energy rechargeable Li batteries while Li nucleation and growth at the nano scale remains mysterious as to achieving reversible stripping and deposition. A few decades of research have been dedicated to this topic and we have seen breakthroughs in novel electrolytes in the last few years, where the efficiency of lithium deposition is exceeding 99.6%, even at extremely low temperatures. She will discuss new perspectives about how future cryogenic imaging and spectroscopic techniques can accelerate the innovation of novel energy storage materials and architectures for enabling lithium metal batteries over a wide temperature range.
Speaker: Y. Shirley Meng, Ph.D., UC San Diego
"Purdue University Battery Systems for Extreme Low Temperature Operations"
ABSTRACT: Development of lithium ion batteries (LIBs) with high capacity electrode materials, longer cycle life, enhanced safety performance, and extreme low temperature operation. Recent advancement in high performance LIBs via electrolyte design including high salt concentrations and low freezing point solvents for creating efficient electrode/electrolyte interfaces for extreme low (-40 o C and lower) temperature operations will be discussed. A brief discussion on hybrid battery concepts for extreme low temperature concept-of-operations will be provided.
Speaker: Vilas Pol, Ph.D., Purdue University
Title: TBA
ABSTRACT: How increased electrolyte impedance is a leading contributing factor in limiting Li-ion cell performance at temperatures below freezing. Developing new electrolyte formulations using conventional liquid solvents of lower viscosity or melting points often limit performance at higher temperatures or with cycle life. South 8 Technologies is developing novel Liquefied Gas Electrolytes which allow for operation from -60 to +60 C while maintaining excellent cycle life and improving safety. These novel chemistries have the potential to replace conventional carbonate based electrolytes in several Li-ion applications, particularly where low temperature performance or safety is mission critical.
Speaker: Cyrus Rustomji, Ph.D., South 8 Technologies
Title: TBA
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Speaker: Marshall Smart, Ph.D., NASA Jet Propulsion Laboratory
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Speaker: Chungsheng Wang, Ph.D., University of Maryland
"Challenges and Research Opportunities for Electric Vehicles in Alaska"
ABSTRACT: Concerns around cold weather performance of electric vehicles inhibit adoption in Alaska. The Alaska Center for Energy and Power (ACEP) at the University of Alaska Fairbanks has collected data on vehicle energy use vs temperature to -40C, and has also created maps and calculators to help Alaskans and others in cold climates estimate the suitability of currently available vehicles. Future research directions for ACEP include investigating emerging electric vehicles (buses, snow machines, etc) in Alaska, working with Alaska communities to develop research concerns and priorities, and investigating potential grid impacts in cold climates and microgrids.
Speaker: Michelle Wilber, University of Alaska
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