EurekAlert March 14, 2022
Researchers in China investigated the thermal runaway behavior of Li-S pouch cells from the materials level and found that the thermal runaway route starts from cathode-induced reactions and then gets accelerated by reactions from the anode. The solvent vaporization was verified to dominate pressure building up during thermal runaway. Li-S batteries employing varied electrolytes with different thermal stabilities, even inorganic all solid-state electrolytes, all undergo rapid thermal runaway at a narrow temperature range due to the intrinsic thermal features of the sulfur cathode and Li metal anode sublimating, melting, and cross-reacting at high temperatures. According to the researchers their work depicting thermal runaway routes will shed fresh lights on the way forward for building next-generation Li-S battery with enhanced safety performance…read more. TECHNICAL ARTICLEÂ
Graphical abstract. Credit: Joule, March 14, 2022Â