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Charbonnel J, Dubourg S, Testard E, Broche L, Magnier C, Rochard T, Marteau D, Thivel PX, Vincent R. Preliminary study of all-solid-state batteries: Evaluation of blast formation during the thermal runaway. iScience 2023; 26:108078. [PMID: 37876824 PMCID: PMC10590810 DOI: 10.1016/j.isci.2023.108078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 09/05/2023] [Accepted: 09/25/2023] [Indexed: 10/26/2023] Open
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.
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Affiliation(s)
- Juliette Charbonnel
- University Grenoble Alpes, CEA, LITEN, DEHT, 38000 Grenoble, France
- University Grenoble Alpes, University Savoie Mont Blanc, CNRS, Grenoble INP, LEPMI, 38000 Grenoble, France
| | | | | | - Ludovic Broche
- European Synchrotron Radiation Facility (ESRF), 38000 Grenoble, France
| | | | | | | | - Pierre-Xavier Thivel
- University Grenoble Alpes, University Savoie Mont Blanc, CNRS, Grenoble INP, LEPMI, 38000 Grenoble, France
| | - Rémi Vincent
- University Grenoble Alpes, CEA, LITEN, DEHT, 38000 Grenoble, France
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Augis N, Hus P, Thivel PX, Viau JY. Décantation assistée par ultrasons des eaux résiduaires. CAN J CHEM ENG 2008. [DOI: 10.1002/cjce.5450830418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Deveau PA, Arsac F, Thivel PX, Ferronato C, Delpech F, Chovelon JM, Kaluzny P, Monnet C. Different methods in TiO2 photodegradation mechanism studies: gaseous and TiO2-adsorbed phases. J Hazard Mater 2007; 144:692-7. [PMID: 17363156 DOI: 10.1016/j.jhazmat.2007.01.097] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
The development of photocatalysis processes offers a significant number of perspectives especially in gaseous phase depollution. It is proved that the photo-oxidizing properties of photocatalyst (TiO(2)) activated by UV plays an important role in the degradation of volatile organic compounds (VOC). Heterogeneous photocatalysis is based on the absorption of UV radiations by TiO(2). This phenomenon leads to the degradation and the oxidation of the compounds, according to a mechanism that associates the pollutant's adsorption on the photocatalyst and radical degradation reactions. The main objective of the study is the understanding of the TiO(2)-photocatalysis phenomenon including gaseous and adsorbed phase mechanisms. Results obtained with three different apparatus are compared; gaseous phases are analysed and mechanisms at the gaseous phase/photocatalyst interface are identified. This study leads to improve understanding of various mechanisms during pollutant photodegradation: adsorption of pollutants on TiO(2) first takes place, then desorption and/or photodegradation, and finally, desorption of degradation products on TiO(2). The association of analytical methods and different processes makes the determination of all parameters that affect the photocatalytic process possible. Mastering these parameters is fundamental for the design and construction of industrial size reactors that aim to purify the atmosphere.
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Affiliation(s)
- Pierre-Alexandre Deveau
- Groupe de Recherche sur l'Environnement et la Chimie Atmosphérique, Université Joseph Fourier Grenoble I, France
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