Combining Fractional Calorimetry with Statistical Methods to Characterize Thermal RunawayThermal management systems designed to handle the impacts of thermal runaway (TR) are key to safe operation of lithium-ion (Li-ion) batteries. Critical factors for optimizing these systems include the total energy released and the fraction of the total energy that is released through the cell casing versus through the ejecta material. A unique calorimeter, designed to characterize said factors, was utilized to examine the TR behavior of a variety of 18650-format Li-ion cells. Statistical methods were implemented to interpret the data.
Document ID
20180007946
Acquisition Source
Johnson Space Center
Document Type
Presentation
Authors
Walker, William (NASA Johnson Space Center Houston, TX, United States)
Darst, John (NASA Johnson Space Center Houston, TX, United States)
Finegan, Donal P. (National Renewable Energy Lab. Golden, CO, United States)
Bayles, Gary (Science Applications International Corp. Hampton, VA, United States)
Johnson, Kenneth (NASA Marshall Space Flight Center Huntsville, AL, United States)
Darcy, Eric (NASA Johnson Space Center Houston, TX, United States)
Rickman, Steven (NASA Johnson Space Center Houston, TX, United States)