Gamma ray degradation of electrolytes containing alkylcarbonate solvents and a lithium salt

Lithium-ion batteries for space applications, such as satellites, are subjected to cosmic radiations, in particular, γ-irradiation. In this study, the effects of this radiation on electrolytes and their components used in the lithium-ion batteries are investigated. The conductivity and viscosity of...

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Bibliographic Details
Published in:Journal of power sources 2010-01, Vol.195 (2), p.614-620
Main Authors: Caillon-Caravanier, Magaly, Jones, Jennifer, Anouti, Mérièm, Montigny, Frédéric, Willmann, Patrick, David, Jean-Pierre, Soonckindt, Sabine, Lemordant, Daniel
Format: Article
Language:English
Subjects:
Applied sciences
Direct energy conversion and energy accumulation
Electrical engineering. Electrical power engineering
Electrical power engineering
Electrochemical conversion: primary and secondary batteries, fuel cells
Electrolyte
Exact sciences and technology
Gamma irradiation
Lithium hexafluorophosphate
Lithium-ion
Polymerization
Vinylene carbonate
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Summary:Lithium-ion batteries for space applications, such as satellites, are subjected to cosmic radiations, in particular, γ-irradiation. In this study, the effects of this radiation on electrolytes and their components used in the lithium-ion batteries are investigated. The conductivity and viscosity of the samples have been measured before and after the irradiation. The modifications are evaluated by spectral analyses such as Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance spectroscopy ( 1H and 13C NMR), solid phase microextraction-gas chromatography (SPME-GC) and gas chromatography–mass spectroscopy (GC–MS). The experimental results show that only the samples containing vinylene carbonate and/or the lithium salt LiPF 6 are degraded by γ-radiation.
ISSN:0378-7753
1873-2755
DOI:10.1016/j.jpowsour.2009.07.015