| abstract |
In a cathode electrode having a cathode active material layer laminated on a current collector, the cathode active material layer is an active material core made of one or more of sulfur and polysulfide, a first coating layer coated on the surface of the active material core and made of conductive particles, And the cathode electrode according to the invention characterized in that the coating is coated on the first coating layer and comprises a core-shell structure consisting of a second coating layer made of a binder can ensure a binding strength of sufficient strength with only a small amount of binder Since the active material content can be increased, it is possible to manufacture a high capacity lithium sulfur battery. |