N-doped CNTs wrapped sulfur-loaded hierarchical porous carbon cathode for Li–sulfur battery studies

Abstract

Hierarchical porous carbon structures are prepared by KOH activation process from coffee waste and are encapsulated with sulfur followed by N-CNTs wrapping. As a cathode for Li–S batteries, the electrode showed excellent electrochemical properties.

Carbon Nanofiber-Based Sandwich Free-Standing Cathode for High-Performance Lithium–Sulfur Batteries

“…To underscore the significance and merits of this study, a comparison was made between the capacity decay rate of Li–S batteries utilizing the carbon nanotube-based cathode and the capacity decay rate reported in a recently published study on lithium–sulfur batteries at a current density of 0.5 C, as depicted in Figure c. − The data indicated that, when compared with other flexible carbon nanofibers, the PCNF sandwich structure electrode exhibited a lower capacity decay rate, offering a promising outlook for Li–S batteries with exceptional cycle performance, the detailed data are illustrated in Table S1 (Supporting Information: Comparison of average decay rate per cycle of the PCNF/T with that of recent publications in Li–S batteries).…”