کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
194993 | 459804 | 2006 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: The effects of gamma-radiation on lithium-ion cells The effects of gamma-radiation on lithium-ion cells](/preview/png/194993.png)
Planetary explorations of human beings necessitate the research of the influence of γ-radiation on lithium-ion cells. In this study, the radioactive Co-60 was used as the radiation source. The electrochemical performances of LiCoO2/graphite full cells and LiCoO2/Li half-cells with a LiPF6-based electrolyte were measured before and after the radiation. The structural and compositional changes of the cell components were evaluated by means of X-ray diffraction (XRD), Fourier transformation infrared spectroscopy (FTIR), and 1H nuclear magnetic resonance spectroscopy (1H NMR). The experimental results indicate that the cell performance is substantially deteriorated after the radiation due to two aspects of changes, i.e. radiation-induced defects in LiCoO2 and production of carboxyl in the electrolyte. The cell degradation is more pronounced for the LiCoO2/C full cells than for LiCoO2/Li half-cells owing to the reaction between active lithium and the carboxyl.
Journal: Electrochimica Acta - Volume 51, Issue 28, 15 September 2006, Pages 6320–6324