Influence of aging on the heat and gas emissions from commercial lithium ion cells in case of thermal failure
| Autor: | Viktor Hacker, Peter Gluschitz, Michael Lammer, Alexander Königseder |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Exothermic reaction
Materials science Thermal runaway chemistry.chemical_element 02 engineering and technology 01 natural sciences Ion lcsh:Chemistry Colloid and Surface Chemistry Thermal Electrochemistry Materials Chemistry Chemical Engineering (miscellaneous) Gas composition thermal runaway gas analysis heat quantification Battery characterisation 010401 analytical chemistry 021001 nanoscience & nanotechnology 0104 chemical sciences lcsh:QD1-999 chemistry Heat flux Chemical engineering Degradation (geology) Lithium 0210 nano-technology |
| Zdroj: | Journal of Electrochemical Science and Engineering, Vol 8, Iss 1 (2018) Journal of Electrochemical Science and Engineering Volume 8 Issue 1 |
| ISSN: | 1847-9286 |
| DOI: | 10.5599/jese.476 |
| Popis: | A method for thermal ramp experiments on cylindrical 18650 Li-ion cells has been established. The method was applied on pristine cells as well as on devices aged by cyclisation or by storage at elevated temperature respectively. The tested cells comprise three types of LiNi0.8Co0.15Al0.05O2 cells for either high power or high energy applications. The heat flux to and from the cell was investigated. Degradation and exothermic breakdown released large amounts of heat and gas. The total gas and heat emission from cycled cells was significantly larger than emission from cells aged by storage. After aging, the low energy cell ICR18650HE4 did not transgress into thermal runaway. Gas composition changed mainly in the early stage of the experiment. The composition of the initial gas release changed from predominantly CO2 towards hydrocarbons. The thermal runaway emitted for all tests a comparable mixture of H2, CO and CO2. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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