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4.2.8.b) In situ XRD – results Figure 4-28 shows the initial charge profiles of both cells. For simplicity, only selected XRD patterns of cell 2 (charged to 3.6 V) are presented in this study, as pointed on the voltage profile (black dots). Corresponding X-Ray diffraction patterns are shown on Figure 4-29, with zoomed regions on selected Bragg peaks. Figure 4-28. Initial charge voltage profile of two Li/Li2S pouch cells studied during in situ and operando XRD measurements. Both Li2S electrodes are coated on NwC collector and of similar Li2S loading of 2.2 mgLi2S cm-2. The cells were initially charged at C/20 until 3.2 V (cell 1) and 3.6 V (cell 2). Black dots correspond to selected XRD patterns presented on the Figure 4-29. (a) (b) (c) (d) Chapter 4: Li2S electrode Figure 4-29. Selected XRD patterns recorded along initial charge to 3.6 V (a) and zoomed images on some Li2S reflections (b,c), as well as on the peaks that appeaed at the end of charge (d) – hypothetically elemental sulfur. 145PDF Image | Accumulateur Lithium Soufre
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Sulfur Deposition on Carbon Nanofibers using Supercritical CO2 Sulfur Deposition on Carbon Nanofibers using Supercritical CO2. Gamma sulfur also known as mother of pearl sulfur and nacreous sulfur... More Info
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