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Published in: Fire Technology 6/2020

31-03-2020

Characterization of Thermally Induced Runaway in Pouch Cells for Propagation

Authors: Erik Archibald, Robert Kennedy, Kevin Marr, Judith Jeevarajan, Ofodike Ezekoye

Published in: Fire Technology | Issue 6/2020

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Abstract

Thermal runaway of lithium-ion batteries is particularly dangerous in systems where runaway can propagate through many cells. To understand thermal runaway propagation in these systems, it is important to understand the differences between failure characteristics of the initial cell that fails due to an abuse event and subsequent cells that fail due to thermal runaway propagation. This work compares thermal runaway events for single cells failed using a heater with cells failed due to propagation in an array. Most of the tests were conducted in an inert environment within a pressure vessel. Cell clamping stress, vessel gas pressure and temperature data show that runaway in cells within an array traverses the cells more slowly and releases gas at a slower rate than singly failed cells. For heater-initiated cell failure, post-experiment cell teardowns suggest that thermal runaway originates at a single point and creates a gas flow stream that causes heavy damage and exits from one side of the cell. Teardowns of cells which failed due to array propagation show more uniform damage and gas release from a larger area.

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Literature
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go back to reference AA Portable Power Corp. Product Specification PL-896474-2C, Richmond, CA AA Portable Power Corp. Product Specification PL-896474-2C, Richmond, CA
21.
go back to reference Underwriters Laboratories (2018) Test method for evaluating thermal runaway fire propagation in battery energy storage systems, UL, UL-9540a Underwriters Laboratories (2018) Test method for evaluating thermal runaway fire propagation in battery energy storage systems, UL, UL-9540a
Metadata
Title
Characterization of Thermally Induced Runaway in Pouch Cells for Propagation
Authors
Erik Archibald
Robert Kennedy
Kevin Marr
Judith Jeevarajan
Ofodike Ezekoye
Publication date
31-03-2020
Publisher
Springer US
Published in
Fire Technology / Issue 6/2020
Print ISSN: 0015-2684
Electronic ISSN: 1572-8099
DOI
https://doi.org/10.1007/s10694-020-00974-2