作者: James B. Robinson , Donal P. Finegan , Thomas M. M. Heenan , Katherine Smith , Emma Kendrick
DOI: 10.1115/1.4038518
关键词: Electrolyte 、 Ion 、 Separator (oil production) 、 Analytical chemistry 、 Lithium 、 Materials science 、 Composite material 、 Electrode 、 Scanning electron microscope 、 Thermal runaway 、 Battery (electricity)
摘要: Thermal runaway is a phenomenon that occurs due to self-sustaining reactions within batteries at elevated temperatures resulting in catastrophic failure. Here, the thermal runaway process is studied for a Li-ion and Na-ion pouch cells of similar energy density (10.5 Wh, 12 Wh, respectively) using accelerating rate calorimetry (ARC). Both cells were constructed with az-fold configuration, with a standard shutdown separator in the Li-ion and a low-cost polypropylene (PP) separator in the Na-ion. Even with the shutdown separator, it …