▎ 摘　　要

NOVELTY - The utility model claims a laminated box-type positive electrode a sealing pad, an inner oxidation resistant layer and an inner corrosion resistant layer, the inner ring of the sealing pad is coated with an inner oxidation resistant layer, one side of the inner oxidation resistant layer is coated with an inner corrosion resistant layer, the outer ring of the inner corrosion resistant layer is coated with an outer oxidation resistant layer, one side of the outer oxidation resistant layer is coated with an outer corrosion resistant layer; the diameter of the inner oxidation resistant layer is 47mm, the diameter of the inner corrosion resistant layer is 45 mm, through the inner oxidation resistant layer and the inner corrosion resistant layer can protect the inner ring of the sealing pad; The utility model can protect the inner ring of the sealing pad through the inner oxidation resistant layer and the inner corrosion resistant layer, at the same time, through the outer oxidation resistant layer and the outer corrosion resistant layer can protect the outer ring of the sealing pad; The hardness of the sealing pad can be increased by graphene filler and the reinforcing rubber, so as to prevent the sealing pad from deforming for a long time, and avoid the problem that the sealing effect of the sealing pad is reduced caused by deformation.