Radiolysis as a solution for accelerated ageing studies of electrolytes in Lithium-ion batteries
| Autor: | Daniel Ortiz, Vincent Dauvois, Solène Legand, Vincent Steinmetz, Delphine Durand, Sophie Le Caër, Philippe Maître |
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| Přispěvatelé: | Laboratoire Interdisciplinaire sur l'Organisation Nanométrique et Supramoléculaire (LIONS), Nanosciences et Innovation pour les Matériaux, la Biomédecine et l'Energie (ex SIS2M) (NIMBE UMR 3685), Institut Rayonnement Matière de Saclay (IRAMIS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Rayonnement Matière de Saclay (IRAMIS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Chimie Physique D'Orsay (LCPO), Université Paris-Sud - Paris 11 (UP11)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Service d'Etudes du Comportement des Radionucléides (SECR), Département de Physico-Chimie (DPC), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Battery (electricity)
General Physics and Astronomy chemistry.chemical_element 02 engineering and technology Electrolyte 010402 general chemistry Bioinformatics 7. Clean energy 01 natural sciences Chemical reaction Redox Article General Biochemistry Genetics and Molecular Biology chemistry.chemical_compound Multidisciplinary Chemistry Diethyl carbonate General Chemistry [CHIM.MATE]Chemical Sciences/Material chemistry 021001 nanoscience & nanotechnology 0104 chemical sciences Chemical engineering Radiolysis Lithium Dimethyl carbonate 0210 nano-technology |
| Zdroj: | Nature Communications Nature Communications, 2015, 6, pp.6950. ⟨10.1038/ncomms7950⟩ Nature Communications, Nature Publishing Group, 2015, 6, pp.6950. ⟨10.1038/ncomms7950⟩ |
| ISSN: | 2041-1723 |
| DOI: | 10.1038/ncomms7950⟩ |
| Popis: | Diethyl carbonate and dimethyl carbonate are prototype examples of eco-friendly solvents used in lithium-ion batteries. Nevertheless, their degradation products affect both the battery performance and its safety. Therefore, it is of paramount importance to understand the reaction mechanisms involved in the ageing processes. Among those, redox processes are likely to play a critical role. Here we show that radiolysis is an ideal tool to generate the electrolytes degradation products. The major gases detected after irradiation (H2, CH4, C2H6, CO and CO2) are identified and quantified. Moreover, the chemical compounds formed in the liquid phase are characterized by different mass spectrometry techniques. Reaction mechanisms are then proposed. The detected products are consistent with those of the cycling of Li-based cells. This demonstrates that radiolysis is a versatile and very helpful tool to better understand the phenomena occurring in lithium-ion batteries. The degradation of organic solvents used in lithium-ion batteries reduces battery performance. Here, the authors present a radiolysis technique which is not only more efficient than conventional thermally activated ageing methods, but also allows mechanistic analysis of the degradation process. |
| Databáze: | OpenAIRE |
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