By Guangmin Zhou
This publication makes a speciality of the layout, fabrication and functions of carbon-based fabrics for lithium-sulfur (Li-S) batteries. It presents insights into the localized electrochemical transition of the “solid-solid” response rather than the “sulfur-polysulfides-lithium sulfides” response throughout the desolvation influence in subnanometer pores; demonstrates that the dissolution/diffusion of polysulfide anions in electrolyte could be vastly decreased via the powerful 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 top sulfur loading and excessive sulfur content material cathodes; and provides the layout of a different sandwich constitution with natural sulfur among graphene membranes as an easy yet powerful method of the fabrication of Li-S batteries with ultrafast charge/discharge charges and lengthy provider lives.
The publication deals a useful source for researchers, scientists, and engineers within the box of strength garage, delivering crucial insights, worthy tools, and useful rules that may be thought of for the commercial creation and destiny program of Li-S batteries.
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Extra resources for Design, Fabrication and Electrochemical Performance of Nanostructured Carbon Based Materials for High-Energy Lithium–Sulfur Batteries: Next-Generation High Performance Lithium–Sulfur Batteries
It is noted that no mesopores in the range between 2 and 6 nm were measured for the carbon matrix based on liquid nitrogen cryosorption analysis. 6 nm pores, named hereafter “super-micropores”. Sulfur in super-micropores is in trace amounts. 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.
Bruce PG, Freunberger SA, Hardwick LJ, Tarascon J-M (2012) Li–O2 and Li–S batteries with high energy storage. Nat Mater 11(1):19–29 4. Yang Y, Zheng G, Cui Y (2013) Nanostructured sulfur cathodes. Chem Soc Rev 42(7):3018– 3032 5. 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.
5a and the pore size distributions are shown in Fig. 5b. The molten sulfur was embedded in the voids of the carbon matrix by capillary forces, where it solidiﬁed causing a signiﬁcant loss of pore volume (Fig. 5a). 44 cm3 g−1. Fig. 24 cm3 g−1 of the CS-Ex sample. Meanwhile, the speciﬁc surface area of the carbon matrix is 413 m2 g−1, while that for CS-Ad and CS-Ex are 8 and 43 m2 g−1, respectively. The inﬁltration resulted in the disappearance of 6–16 nm mesopores in the carbon matrix as shown in Fig.
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