Surface pad for electrode lug of cylindrical battery

The utility model relates to the technical field of lithium ion battery accessories, in particular to a surface pad for an electrode lug of a cylindrical battery. The surface pad is a disc, wherein an electrode lug extending hole is formed in an eccentric position of the disc; an electrode lug positioning piece is arranged at an approximately central position of the disc; a coiled battery is put into a shell, the surface pad is put therein, the eccentric electrode lug penetrates out from the electrode lug extending hole in the surface pad, and before groove rolling, the electrode lug is orderly pressed towards the electrode lug positioning piece; after a battery core is baked and filled with liquid and before a cap is covered through laser welding, the electrode lug is bent and erected along the electrode lug positioning piece by using a pair of forceps, and the electrode lug is positioned by the electrode lug positioning piece, so that the electrode lug is basically positioned at a central axis and is far from a steel shell; even if the electrode lug is separated from the cap, the electrode lug is not in contact with the steel shell, so that the risk of short circuit inside the battery is avoided.