Paper
Safe or Slow? The Illusion of Thermal Stability Under Reduced-Velocity Nail Intrusion
Authors
Eymen Ipek, Oliver Korak, Georg Gsellmann, Andrey Golubkov
Abstract
This study investigates the effects of nail penetration speed on the safety outcomes of large-format automotive lithium-ion pouch cells. Through six controlled tests varying the speed of nail insertion, we observed that lower penetration speeds did not induce thermal runaway; instead, the cells exhibited self-discharge while the nail remained embedded. These findings suggest that penetration speed is a critical factor in the onset of thermal runaway, providing valuable insights for the development of safer battery systems and more effective safety testing protocols.
Metadata
Related papers
Cosmic Shear in Effective Field Theory at Two-Loop Order: Revisiting $S_8$ in Dark Energy Survey Data
Shi-Fan Chen, Joseph DeRose, Mikhail M. Ivanov, Oliver H. E. Philcox • 2026-03-30
Stop Probing, Start Coding: Why Linear Probes and Sparse Autoencoders Fail at Compositional Generalisation
Vitória Barin Pacela, Shruti Joshi, Isabela Camacho, Simon Lacoste-Julien, Da... • 2026-03-30
SNID-SAGE: A Modern Framework for Interactive Supernova Classification and Spectral Analysis
Fiorenzo Stoppa, Stephen J. Smartt • 2026-03-30
Acoustic-to-articulatory Inversion of the Complete Vocal Tract from RT-MRI with Various Audio Embeddings and Dataset Sizes
Sofiane Azzouz, Pierre-André Vuissoz, Yves Laprie • 2026-03-30
Rotating black hole shadows in metric-affine bumblebee gravity
Jose R. Nascimento, Ana R. M. Oliveira, Albert Yu. Petrov, Paulo J. Porfírio,... • 2026-03-30
Raw Data (Debug)
{
"raw_xml": "<entry>\n <id>http://arxiv.org/abs/2603.09254v1</id>\n <title>Safe or Slow? The Illusion of Thermal Stability Under Reduced-Velocity Nail Intrusion</title>\n <updated>2026-03-10T06:40:49Z</updated>\n <link href='https://arxiv.org/abs/2603.09254v1' rel='alternate' type='text/html'/>\n <link href='https://arxiv.org/pdf/2603.09254v1' rel='related' title='pdf' type='application/pdf'/>\n <summary>This study investigates the effects of nail penetration speed on the safety outcomes of large-format automotive lithium-ion pouch cells. Through six controlled tests varying the speed of nail insertion, we observed that lower penetration speeds did not induce thermal runaway; instead, the cells exhibited self-discharge while the nail remained embedded. These findings suggest that penetration speed is a critical factor in the onset of thermal runaway, providing valuable insights for the development of safer battery systems and more effective safety testing protocols.</summary>\n <category scheme='http://arxiv.org/schemas/atom' term='eess.SY'/>\n <category scheme='http://arxiv.org/schemas/atom' term='physics.chem-ph'/>\n <published>2026-03-10T06:40:49Z</published>\n <arxiv:primary_category term='eess.SY'/>\n <author>\n <name>Eymen Ipek</name>\n </author>\n <author>\n <name>Oliver Korak</name>\n </author>\n <author>\n <name>Georg Gsellmann</name>\n </author>\n <author>\n <name>Andrey Golubkov</name>\n </author>\n </entry>"
}