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Chapter 2: S8 electrode on Aluminum Figure 2-18. An illustrative summary of different phenomena appearing in S8 electrode, responsible for Nyquist plot shape recorded by EIS on a symmetric sulfur-based coin cell. A significant difference in the EIS response was observed for three prepared electrodes (CMCdispermat, PVdFmanual, PVdFdispermat), mostly due to the differences in the electrode elaboration process. We were interested to determine if a correlation between the EIS response and cycling performances could be established. Post mortem studies on cycled electrodes were done, and the results are presented in the following section. 2.3.4. Correlation of the EIS results with cycling performances 2.3.4.a) Cycling results In order to have the most comparative and reflective results, we took into consideration highly loaded electrodes (with sulfur loading of ~ 3.9 – 4.7 mg cm-2) cycled at faster rate (C/5).** Figure 2-19 shows the shape of the initial voltage profile, together with capacity retention. ** For thin electrodes cycled at a slow rate (C/20), no difference in the potential value was observed. 66PDF 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
CO2 Organic Rankine Cycle Experimenter Platform The supercritical CO2 phase change system is both a heat pump and organic rankine cycle which can be used for those purposes and as a supercritical extractor for advanced subcritical and supercritical extraction technology. Uses include producing nanoparticles, precious metal CO2 extraction, lithium battery recycling, and other applications... More Info
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