Topological insulator bismuth selenide with a unique cloud-like hollow structure as a bidirectional electrocatalyst for robust lithium–sulfur batteries
Mincai Zhao, Junjie Fu, Daoping Cai, Chaoqi Zhang, Ban Fei, Yinggan Zhang, Baisheng Sa, Qidi Chen, Hongbing Zhan
Abstract
Topological insulator Bi 2 Se 3 with a unique cloud-like hollow structure was synthesized and employed as a separator modifier for lithium–sulfur batteries, which can significantly accelerate sulfur conversion kinetics and mitigate the shuttle effect.
Topics & Concepts
Topological insulatorElectrocatalystSulfurInsulator (electricity)Materials scienceSelenideTopology (electrical circuits)Chemical engineeringChemistryOptoelectronicsPhysicsElectrodeElectrochemistryElectrical engineeringEngineeringPhysical chemistryCondensed matter physicsSeleniumMetallurgyAdvanced Battery Materials and TechnologiesSemiconductor materials and interfacesFlame retardant materials and properties