NDLI: Holistic methodology for characterisation of the thermally induced failure of commercially available 18650 lithium ion cells

Content Provider	Royal Society of Chemistry (RSC)
Author	Lammer, Michael Königseder, Alexander Hacker, Viktor
Copyright Year	2017
Abstract	An innovative approach to holistic analysis of thermally induced battery failure has been developed. A purpose-built test rig with high reproducibility within the specific setup produces reliable experimental data. Thermal ramp experiments at a defined state of charge are conducted on three types of commercial lithium ion batteries of the 18650 format. Thermally induced cell break-down is detected by temperature measurement on the cell surface. These failure scenarios comprise the venting of gas and particles and the exothermic process of thermal runaway. The tests showed heat emissions of up to 31 kJ during the final phase, with the battery surface reaching up to 877 °C. The release of gas is continuously logged and analysed by micro-GC. The main components are flammable and, due to the high concentration of CO of up to 61.4%, highly toxic. The maximum total gas emission during the deflagration of the cell was 5495 cm3.
Starting Page	24425
Ending Page	24429
Page Count	5
File Format	HTM / HTML PDF
ISSN	20462069
Volume Number	7
Issue Number	39
Journal	RSC Advances
DOI	10.1039/c7ra02635h
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Exothermic process Deflagration Thermal runaway
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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Holistic methodology for characterisation of the thermally induced failure of commercially available 18650 lithium ion cells