Straightforward synthesis of Sulfur/N,S-codoped carbon cathodes for Lithium-Sulfur batteries.

ABSTRACT: An upgrade of the scalable fabrication of high-performance sulfur-carbon cathodes is essential for the widespread commercialization of this technology. Herein we present a simple, cost-effective and scalable approach for the fabrication of cathodes comprising sulfur and high-surface area, N,S-codoped carbons. The method involves the use of a sulfur salt, i.e. sodium thiosulfate, as activating agent, sulfur precursor and S-dopant, and polypyrrole as carbon precursor and N-dopant. In this way, the production of the porous host and the incorporation of sulfur are combined in the same procedure. The porous hosts thus produced have BET surface areas in excess of 2000 m² g^-1, a micro-mesoporous structure, as well as sulfur and nitrogen contents of 5-6 wt% and ~2 wt%, respec

SUBMITTER: Sevilla M 

PROVIDER: S-EPMC7078249 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature