Diamond Publications - Search Results

Search Again...

These results only include publications that have been reviewed and processed by Diamond Light Source. To also view papers that have not yet been processed click here.

You can use the folder icon under Actions to collate papers as required. You can then click on View Folder in the left-hand navigation to review and/or download your folder.

One item found (0 items not approved).

Instruments / Technical Area	Publication Details	Published	Actions
I12-JEEP: Joint Engineering, Environmental and Processing	Thermal runaway of Li-ion cells: how internal dynamics, mass ejection, and heat vary with cell geometry and abuse type Matt Sharp , John Darst , Peter Hughes , Julia Billman , Martin Pham , David Petrushenko , Thomas Heenan , Rhodri Jervis , Rhodri Ellis Owen , Drasti Patel , Wenjia Du , Harry Michael , Alexander Rack , Oxana Magdysyuk , Thomas Connolley , Dan Brett , Gareth Hinds , Matthew Keyser , Eric Darcy , Paul Shearing , William Q. Walker , Donal Finegan Journal Of The Electrochemical Society DOI: 10.1149/1945-7111/ac4fef Diamond Proposal Number(s): [24112, 20903, 17641] Open Access Show Abstract ▼ Abstract: Thermal runaway of lithium-ion batteries can involve various types of failure mechanisms each with their own unique characteristics. Using fractional thermal runaway calorimetry and high-speed radiography, the response of three different geometries of cylindrical cell (18650, 21700, and D-cell) to different abuse mechanisms (thermal, internal short circuiting, and nail penetration) are quantified and statistically examined. Correlations between the geometry of cells and their thermal behavior are identified, such as increasing heat output per amp-hour (kJ Ah-1) of cells with increasing cell diameter during nail penetration. High-speed radiography reveals that the rate of thermal runaway propagation within cells is generally highest for nail penetration where there is a relative increase in rate of propagation with increasing diameter, compared to thermal or internal short-circuiting abuse. For a given cell model tested under the same conditions, a distribution of heat output is observed with a trend of increasing heat output with increased mass ejection. Finally, internal temperature measurements using thermocouples embedded in the penetrating nail are shown to be unreliable thus demonstrating the need for care when using thermocouples where the temperature is rapidly changing. All data used in this manuscript are open access through the NREL and NASA Battery Failure Databank.	Jan 2022

Instruments / Technical Area

Publication Details

Published

Actions

I12-JEEP: Joint Engineering, Environmental and Processing

Thermal runaway of Li-ion cells: how internal dynamics, mass ejection, and heat vary with cell geometry and abuse type