Design of two-dimensional graphene with dispersed Co–N catalysts as a multifunctional S holding material in Li–S batteries to improve the retention of LiPSs and accelerate the reaction kinetics.
Porous NiCo2S4@SiO2 is employed as sulfur host. The negatively charged SiO2 can increase the charge density and conductivity of NiCo2S4 and accelerate the conversion of sulfur. The charge transfer effect...
Waste honeycomb derived porous carbon with a high specific surface area of 1683.6 m2 g−1 are prepared via a facile simultaneous activation/carbonization. The corresponding porous carbon/sulfur composite cathode exhibits a durable stable performance up to 500 cycles at 1 C.