静电纺丝结合异质结构在锂硫电池正极中的应用

Lithium-sulfur (Li-S) batteries, as a representative of the next-generation high density energy storage system, show a broad application prospect by virtue of their high theoretical energy energy density, abundant sulfur resource, and environmental friendliness. However, problems such as polysulfides shuttle effect and slow reaction kinetics have seriously restricted the pratical application of lithium-sulfur batteries. Heterostructures can realize the adsorption-catalytic synergistic effect on polysulfides by virtue of their unique interfacial effect,effectively alleviating the shuttle effect and accelerating the reaction kinetics. Electrostatic spinning has become an ideal means to construct heterojunction nanomaterials with the advantages of precise fiber morphology modulation ability and flexible heterogeneous component integration. This article systematically reviews the research progress of heterojunction engineering based on electrospinning technology in lithium-sulfur battery cathode materials, with a focus on elucidating its mechanistic roles in structural design, adsorption-catalysis regulation, and kinetic optimization, aiming to provide theoretical guidance for the design of high-performance lithium-sulfur batteries.