End socket capable of preventing internal corrosion

The utility model discloses an end socket for preventing internal corrosion, which comprises two end socket bodies which are symmetrically arranged, an aluminum plastic film of a battery pack to be sealed is arranged between the two end socket bodies, each end socket body comprises a sealing strip and a bottom plate, the sealing strip is arranged on the surface of the bottom plate, and the bottom plate is arranged on the sealing strip. The periphery of the end face, away from the bottom plate, of the sealing strip is of a fillet structure, a sealing groove is formed in the center of the sealing strip, and step-shaped extending parts are integrally formed at the two ends of the sealing groove. According to the utility model, the layering phenomenon between the PP glue layer and the aluminum foil layer during the previous sealing can be improved, and a certain buffer area is formed in the glue diffusion process of the PP glue on the two sides of the tab end, so that the improvement effect is achieved on the pre