Metallic WO₂-Promoted CoWO₄/WO₂ Heterojunction with Intercalation-Mediated Catalysis for Lithium-Sulfur Batteries.

ABSTRACT: Lithium-sulfur (Li-S) batteries require efficient catalysts to accelerate polysulfide conversion and mitigate the shuttle effect. However, the rational design of catalysts remains challenging due to the lack of a systematic strategy that rationally optimizes electronic structures and mesoscale transport properties. In this work, we propose an autogenously transformed CoWO₄/WO₂ heterojunction catalyst, integrating a strong polysulfide-adsorbing intercalation catalyst with a metallic-phase promoter for enhanced activity. CoWO₄ effectively captures polysulfides, while the CoWO₄/WO₂ interface facilitates their S-S bond activation on heterogenous catalytic sites. Benefiting from its directional intercalation channels, CoWO₄ not o

SUBMITTER: Wang C 

PROVIDER: S-EPMC12274174 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature