By Guangmin Zhou
This publication specializes in the layout, fabrication and purposes of carbon-based fabrics for lithium-sulfur (Li-S) batteries. It offers insights into the localized electrochemical transition of the “solid-solid” response rather than the “sulfur-polysulfides-lithium sulfides” response in the course of the desolvation impression in subnanometer pores; demonstrates that the dissolution/diffusion of polysulfide anions in electrolyte may be enormously diminished by way of the robust binding of sulfur to the oxygen-containing teams on decreased graphene oxide;manifests that graphene foam can be utilized as a 3D present collector for prime sulfur loading and excessive sulfur content material cathodes; and offers the layout of a special sandwich constitution with natural sulfur among graphene membranes as an easy yet potent method of the fabrication of Li-S batteries with ultrafast charge/discharge charges and lengthy provider lives.
The e-book deals a useful source for researchers, scientists, and engineers within the box of power garage, supplying crucial insights, worthwhile tools, and functional rules that may be thought of for the economic construction and destiny program of Li-S batteries.
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Additional info for Design, Fabrication and Electrochemical Performance of Nanostructured Carbon Based Materials for High-Energy Lithium–Sulfur Batteries: Next-Generation High Performance Lithium–Sulfur Batteries
Copyright 2013 inhibiting the Li polysulﬁde dissolution and stabilizing the Li anode (Fig. 10) . The ultrahigh concentration of LiTFSI in electrolyte is hard to dissolve the soluble polysulﬁde intermediate and thus avoids Li polysulﬁdes shuttle. In addition, SIS electrolytes effectively protect metallic lithium anode against the formation of lithium dendrites, which makes the cell exhibit both excellent electrochemical performance and high safety. 2 C with a high Coulombic efﬁciency during the cycling process, and the capacity maintained at 770 mAh g−1 after 100 cycles.
The sulfur residue after CS2 extraction is likely to be surface adsorbed by the mesopores in the carbon scaffold. These results are consistent with the XPS analysis. X-ray diffraction (XRD) peaks, shown in Fig. 6a, reveal the rhombicmonoclinic phase transition of sulfur solidiﬁed in CS-Ad from the melt, indicating the crystalline nature of sulfur in mesopores. The well-resolved peaks corresponding to monoclinic sulfur in CS-Ad disappeared completely after CS2 extraction, indicating the amorphous nature of sulfur conﬁned by micropores in CS-Ex [24, 30].
Manthiram A, Fu Y, Chung S-H, Zu C, Su Y-S (2014) Rechargeable lithium-sulfur batteries. Chem Rev 114(23):11751–11787 6. Liang Z et al (2014) Sulfur cathodes with hydrogen reduced titanium dioxide inverse opal structure. ACS Nano 8(5):5249–5256 7. Manthiram A, Fu Y, Su Y-S (2012) Challenges and prospects of lithium-sulfur batteries. Acc Chem Res 46(5):1125–1134 8. Kolosnitsyn VS, Karaseva EV (2008) Lithium-sulfur batteries: Problems and solutions. Russ J Electrochem 44(5):506–509 9. Wang D-W et al (2012) A microporous-mesoporous carbon with graphitic structure for a high-rate stable sulfur cathode in carbonate solvent-based Li–S batteries.
Design, Fabrication and Electrochemical Performance of Nanostructured Carbon Based Materials for High-Energy Lithium–Sulfur Batteries: Next-Generation High Performance Lithium–Sulfur Batteries by Guangmin Zhou