Spherical CoS2 with high load capacity as cathode carrier material of lithium sulfur batteries for improving the volume energy density

Synergistic design of a semi-hollow core–shell structure and a metal–organic framework-derived Co/Zn selenide coated with MXene for high-performance lithium–sulfur batteries

“…To overcome these challenges, researchers have focused on developing sulfur-based cathode composites, particularly hollow nanostructured hosts that can mitigate the volume changes of sulfur during battery cycling while acting as nanoscale electrochemical reactors that provide space constraints for LiPSs. [10][11][12][13] In order to further improve the adsorption capacity of the host material towards LiPSs and reaction kinetics, polar materials such as metal oxides [14][15][16] and metal sulfides [17][18][19] can be combined with hollow structures as sulfur hosts. However, the conductivity of these materials is restricted, which can affect the rate performance and longterm cycling stability of the battery.…”