PDF Publication Title:
Text from PDF Page: 193
(a) (b) Figure 5-22. Surface area evolution of Li2S (111) peak during 5th (a) and 6th (b) cycle at C/8. β-S8 appearance and disappearance is also marked (in red). In the next step, we compared the integrated surface area of the most intense (111) reflection of Li2S recorded at the end of discharge with the capacity of lower discharge plateau for both C rates (C/20 and C/8), bearing in mind that the final amount of Li2S formed at the end of discharge is interrupted by Li2S2 formation, according to the previous detailed discussion (section 5.4). Doing so, we observe rather linear behavior (Figure 5-23a), indicating that the C- rate (at least for moderate values) does not have a significant influence on the total (for both steps) efficiency of Li2S formation. We also compared the crystallite size obtained at the end of different cycle number and C-rates (Figure 5-23b). As they are relatively similar, this brings us to the conclusion that current density (C-rate) does not affect the crystallite size. (a) (b) Figure 5-23. Capacity corresponding to the lower discharge plateau, obtained at both C-rates, i.e. C/20 and C/8, plotted vs. Li2S (111) peak surface area, recorded at the end of discharge (a). Summary of the crystallite size calculated for both C-rates and during several cycles (b). Chapter 5: In situ and operando XRD 189PDF Image | Accumulateur Lithium Soufre
PDF Search Title:
Accumulateur Lithium SoufreOriginal File Name Searched:
WALUS_2015_archivage.pdfDIY PDF Search: Google It | Yahoo | Bing
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
CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com (Standard Web Page)