Rationally designing a Ti<sub>3</sub>C<sub>2</sub>T<sub><i>x</i></sub>/CNTs-Co<sub>9</sub>S<sub>8</sub> heterostructure as a sulfur host with multi-functionality for high-performance lithium–sulfur batteries
Tuo Xiao, Youfang Zhang, Wen Xi, Rui Wang, Yansheng Gong, Beibei He, Huanwen Wang, Jun Jin
Abstract
A 3D porous Ti 3 C 2 T x /CNTs-Co 9 S 8 heterostructure has been rationally constructed and utilized as a S host for Li–S batteries. Ti 3 C 2 T x and CNTs can improve the conductivity and physically/chemically adsorb polysulfides, while Co 9 S 8 nanoparticles can catalyze the conversion of polysulfides to Li 2 S, leading to high capacity, excellent rate capability, and good cyclic stability.
Topics & Concepts
PolysulfideMaterials scienceCathodeChemical engineeringHeterojunctionSulfurSulfidationPorosityAnodeNanotechnologyElectrodeComposite materialElectrolyteChemistryOptoelectronicsMetallurgyPhysical chemistryEngineeringMXene and MAX Phase MaterialsAdvanced Battery Materials and TechnologiesAdvancements in Battery Materials