▎ 摘　　要

NOVELTY - Preparing molybdenum sulfide composite material loaded with manganese element on graphene comprises dispersing graphene oxide in water, adding ammonium heptamolybdate and thiourea to mix well, then adding manganese salt, and dispersing ultrasonically, hydrothermally reacting the obtained mixed solution in reactor at 160-220degreesC under nitrogen atmosphere for 15-30 hours, then taking out the reaction solution and cooling to room temperature, centrifuging the obtained solid reaction product, washing with deionized water for 3-5 times, and then adding centrifuged product into liquid nitrogen for rapid freezing, freeze-drying under vacuum to obtain molybdenum sulfide composite powder loaded with manganese element on graphene. USE - The molybdenum sulfide composite material loaded with manganese element on graphene is useful in modification of lithium-sulfur battery separator (claimed). ADVANTAGE - The molybdenum sulfide composite material: can reduce self impedance of the diaphragm, increase the lithium ion channel of the diaphragm surface to accelerate the battery reaction, so as to improve the whole performance of the battery.