Toward High-Performance Lithium-Sulfur Batteries: Efficient Anchoring and Catalytic Conversion of Polysulfides Using P-Doped Carbon Foam

Yanwen Zou; Daying Guo; Bin Yang; Ling Zhou; Peirong Lin; Jinyi Wang; Xi'an Chen; Shun Wang

doi:10.1021/acsami.1c16551

Toward High-Performance Lithium-Sulfur Batteries: Efficient Anchoring and Catalytic Conversion of Polysulfides Using P-Doped Carbon Foam

ACS Appl Mater Interfaces. 2021 Oct 27;13(42):50093-50100. doi: 10.1021/acsami.1c16551. Epub 2021 Oct 15.

Authors

Yanwen Zou¹, Daying Guo¹, Bin Yang¹, Ling Zhou¹, Peirong Lin¹, Jinyi Wang¹, Xi'an Chen¹, Shun Wang¹

Affiliation

¹ Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China.

PMID: 34649425
DOI: 10.1021/acsami.1c16551

Abstract

Rational design of the sulfur cathode structure enables effective adsorption of polysulfides and accelerates the sulfur reduction reaction, which is of great significance to the practical application of lithium-sulfur batteries. Here, P-doped carbon foam (PCF) as a sulfur host for the lithium-sulfur battery cathode was successfully synthesized by a facile strategy. The tailored hierarchical pore structure combined with P doping not only facilitates Li⁺ diffusion but also enhances the adsorption and accelerates the catalytic conversion of lithium polysulfides, thus significantly improving lithium storage performance of the PCF/S cathode.

Keywords: chemisorption; cycling stability; lithium−sulfur batteries; oxygen doping; ultrathin carbon nanosheets.