Zeolitic imidazolate framework-derived hierarchical quaternary nickel cobalt sulfoselenide materials for lithium-sulfur batteries: Se doping enhances bimetallic atomic synergies to improve cathode reaction kinetics

at a current density of 0.1C as well as a capacity retention of 98.2 % after 500 charge-discharge cycles at a current density of 2C were obtained based on the cathode with NiCoSSe carrier. By systematically investigating the synthesis of bimetallic sulfoselenide compounds and their enhancement effects on the reaction kinetics of lithium-sulfur battery cathode, this study will provide a detailed reference for the conformational relationship between the structure of quaternary NiCoSSe materials and electrochemical performance.