NAVAL RESEARCH LAB WASHINGTON DC WASHINGTON United States
Temperature rise in Lithium-ion batteries LIBs due to solid electrolyte interfaces breakdown, uncontrollable exothermic reactions in electrodes and Joule heating can result in the catastrophic failures such as thermal runaway, which is calling for reliable real-time electrode temperature monitoring. Here, we present a customized LIB setup developed for early detection of electrode temperature rise during simulated thermal runaway tests incorporating a modern additive manufacturing-supported resistance temperature detector RTD. An advanced RTD is embedded in a 3D printed polymeric substrate and placed behind the electrode current collector of CR2032 coin cells that can sustain harsh electrochemical operational environments acidic electrolyte without Redox, short-circuiting, leakage etc. without participating in electrochemical reactions. The internal RTD measured an average 5.8 degrees C higher temperature inside the cells than the external RTD with almost 10 times faster detection ability, prohibiting thermal runaway events without interfering in the LIBs operation. A temperature prediction model is developed to forecast battery surface temperature rise stemming from measured internal and external RTD temperature signatures.
Journal Article - Open Access
Scientific Reports , 9, 01 Jan 0001, 01 Jan 0001, [ 1 ] Purdue Univ, Sch Aeronaut and Astronaut, W Lafayette, IN 47907 USA[ 2 ] Purdue Univ, Davidson Sch Chem Engn, W Lafayette, IN 47907 USA[ 3 ] Naval Surface Warfare Ctr, Crane Div, Crane, IN 47522 USA[ 4 ] US Naval Res Lab, Washington, DC 20375 USA