Combining Fractional Calorimetry with Statistical Methods to Characterize Thermal Runaway

Walker, William ; Darst, John ; Finegan, Donal ; Hughes, Peter J ; Pizano, Saul ; Darcy, Eric

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

RP-ID  :  JSC-E-DAA-TN70626

学科分类：能源（综合）

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

Fractional thermal runaway calorimetry (FTRC) techniques were introduced to examine thermal runaway (TR) behavior of lithium-ion (Li-ion) cells. Specifically, FTRC considers the total energy released vs. the fraction of the total energy that is released through the cell casing vs. through the ejecta material. This device has been expanded to universally support FTRC testing of additional cell types including 21700-format, D-Cell format, and large prismatic format Li-ion cells. The TR behavior as influenced by cell format, manufacturer, chemistry, capacity, and in situ safety features are described in this presentation.