Combining Fractional Calorimetry with Statistical Methods to Characterize Thermal Runaway

Walker, William ; Darst, John ; Finegan, Donal P ; Bayles, Gary ; Johnson, Kenneth ; Darcy, Eric ; Rickman, Steven

关键词: HEAT MEASUREMENT;    CALORIMETERS;    STATISTICAL ANALYSIS;    THERMAL ANALYSIS;    TEMPERATURE CONTROL;    LITHIUM BATTERIES;    STORAGE BATTERIES;    EJECTA;    GAS DISCHARGES;    THERMAL EMISSION;    SAFETY;   

RP-ID  :  JSC-E-DAA-TN62089

学科分类：能源（综合）

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

Thermal 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.