| abstract |
The present invention relates to a separator for a lithium-sulfur battery including a porous substrate and a coating layer formed on at least one surface of the porous substrate, the coating layer containing niobium nitride (NbN), and a lithium-sulfur battery including the same. According to the present invention, as a separator for a lithium-sulfur battery, by including a coating layer including a porous substrate and a mesoporous inorganic nitride on at least one surface of the porous substrate, the problem caused by the elution of lithium polysulfide is solved, and lithium dendrite It is possible to solve the problem caused by, it is possible to improve the life and stability of the lithium-sulfur battery. |