A multifunctional separator modified using Y₂O₃/Co₃O₄ heterostructures boosting polysulfide catalytic conversion for advanced Li–S batteries

Abstract

The synergistic effect of the heterostructures of Y2O3/Co3O4 with adsorption and catalytic properties was used to construct an effective separator mitigation mechanism for the shuttle effect of lithium–sulfur batteries.

Construction of Co@N-CNTs grown on N-MoxC nanosheets for separator modification to enhance adsorption and catalytic conversion of polysulfides in Li–S batteries

“…[20][21][22][23][24] Among them, CNTs exhibit unique advantages in the transfer of electrons and ions due to their 1D nanostructure with a high lengthdiameter ratio. 25,26 Subsequently, polar materials including metal oxides, metal suldes, and metal carbides are also introduced, [27][28][29][30][31][32] which show superior capability in adsorbing and accelerating the reaction kinetics of LiPSs. However, their inherent poor conductivity or agglomeration limits their use in modifying separators, especially in LSBs with high sulfur loading.…”

Simultaneously Encapsulating Co/Co2P Nanoparticles Inside and Growing Vertical Graphene Nanosheets Outside for N‐Doped Carbon Nanotubes as Efficient Sulfur Carriers for High‐Performance Lithium Sulfur Batteries

“…[2,6,10] Metal compounds with strong chemical adsorption capacity can catalyze the conversion of polysulfides. [11,12] However, their low conductivity limits the electron transfer and reduces the conversion rate of polysulfides, resulting in poor cycle performance. [13,14] Therefore, it is necessary to develop a suitable strategy to prepare CNT-based composites to satisfy the requirements of rapid electron transfer and efficient polysulfide trapping and transformation.…”