2015/04/28 by Donal P. Finegan, Mario Scheel, James B. Robinson +9 · 4 citations
Chemistry · Engineering · Medicine · #Advanced Battery Technologies Research #Advancements in Battery Materials #Battery (electricity) #Chemistry #Computer science #Degradation (telecommunications) #Electrode #Engineering #Ion #Lithium (medication) #Materials science #Medicine #Nuclear engineering #Optics #Physics #Semiconductor materials and devices #Synchrotron #Telecommunications #Thermal #Thermal runaway #Thermodynamics
paper · pdf · doi:10.1038/ncomms7924
openalex publication_date 2015/04/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Prevention and mitigation of thermal runaway presents one of the greatest challenges for the safe operation of lithium-ion batteries. Here, we demonstrate for the first time the application of high-speed synchrotron X-ray computed tomography and radiography, in conjunction with thermal imaging, to track the evolution of internal structural damage and thermal behaviour during initiation and propagation of thermal runaway in lithium-ion batteries. This diagnostic approach is applied to commercial lithium-ion batteries (LG 18650 NMC cells), yielding insights into key degradation modes including gas-induced delamination, electrode layer collapse and propagation of structural degradation. It is envisaged that the use of these techniques will lead to major improvements in the design of Li-ion batteries and their safety features.