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(~ 2.77 mgSulfur cm-2). One explanation could relate to the lower diffusion of the polysulfides coming from the electrode into the electrolyte, due to their lower solubility in the presence of already dissolved polysulfides. The literature also proposes that higher sulfur/electrolyte ratios (i.e. more loaded electrodes) display lower shuttle mechanism and better coulombic efficiency. Due to the fact that less electrolyte is in the cell, polysulfides diffusion to the negative electrode may be decreased (because of higher electrolyte viscosity), and the capacity retention is improved105,125. This particular behavior is still under investigation at the moment. PVdF-based electrodes display very similar trend, i.e. more loaded electrodes give better capacity values upon cycling. (a) (b) (c) (d) Figure 2-9. Cycling performances of S/SuperP®/CMC electrodes having different sulfur loadings: initial cycle voltage profiles at C/20 (a) and at C/5 (c). Corresponding capacity retention upon prolonged cycling at C/20 (b) and at C/5 (d). It can be seen from Figure 2-10, that when the initial discharge capacity is plotted vs. sulfur loading, an optimum point can be found (as previously discussed in the literature review part). Chapter 2: S8 electrode on Aluminum 57PDF 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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