In-operando high-speed tomography of lithium-ion batteries during thermal runaway
London Centre for Nanotechnology · University College London · +4 more institutions
Abstract
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…
Citation impact
- FWCI
- 28.51
- Percentile
- 100%
- References
- 40
Authors
12- DPDonal P. FineganCorresponding
London Centre for Nanotechnology, University College London
- MSMario Scheel
Synchrotron soleil, European Synchrotron Radiation Facility
- JBJames B. Robinson
London Centre for Nanotechnology, University College London
- BTBernhard Tjaden
London Centre for Nanotechnology, University College London
- IHIan Hunt
Imperial College London
Topics & keywords
- Thermal runaway
- Lithium (medication)
- Materials science
- Nuclear engineering
- Ion
- Thermal
- Degradation (telecommunications)
- Electrode