Preliminary study of all-solid-state batteries: Evaluation of blast formation during the thermal runaway

Juliette Charbonnel; Sébastien Dubourg; Etienne Testard; Ludovic Broche; Christophe Magnier; Thibaut Rochard; Daniel Marteau; Pierre-Xavier Thivel; Rémi Vincent

doi:10.1016/j.isci.2023.108078

Preliminary study of all-solid-state batteries: Evaluation of blast formation during the thermal runaway

iScience. 2023 Sep 28;26(11):108078. doi: 10.1016/j.isci.2023.108078. eCollection 2023 Nov 17.

Authors

Juliette Charbonnel^{1

2}, Sébastien Dubourg³, Etienne Testard³, Ludovic Broche⁴, Christophe Magnier³, Thibaut Rochard³, Daniel Marteau³, Pierre-Xavier Thivel², Rémi Vincent¹

Affiliations

¹ University Grenoble Alpes, CEA, LITEN, DEHT, 38000 Grenoble, France.
² University Grenoble Alpes, University Savoie Mont Blanc, CNRS, Grenoble INP, LEPMI, 38000 Grenoble, France.
³ CEA/Le Ripault, BP 16, 37260 Monts, France.
⁴ European Synchrotron Radiation Facility (ESRF), 38000 Grenoble, France.

Abstract

All-solid-state batteries have been developed to increase energy density by replacing the lithiated graphite negative electrode by a lithium metal foil and to increase safety by removing the organic compounds. However, the safety issues of these batteries have received little attention up to now. The behavior of a reassembled all-solid-state battery under thermal stress was recorded by X-ray radiography and a high-speed camera. The thermal runaway (TR) lasted about 5 ms, thus extremely fast reaction kinetics. In comparison, the TR of a lithium-ion battery is about 500 ms. Furthermore, a 188-mbar aerial overpressure was measured using a piezoelectric sensor. Although this cell is not an explosive, 2.7 g TNT equivalent was calculated for it. This atypical behavior could have an impact on the casing or the battery pack. Therefore, it must be studied in greater detail.

Keywords: Cancer; Computational bioinformatics; Health informatics; Pathology.