ALUMINUM COVER PLATE OF BATTERY

The present application discloses an improved aluminum cover plate of a battery, including a cover plate, a metal sheet and an electrode column. The electrode column penetrates and is arranged in rivet holes of the cover plate and the metal sheet, and is riveted with the metal sheet. A first sealing ring is arranged between a cap portion and a nail portion of the electrode column and the cover plate. A second sealing ring is arranged on an outer periphery of the nail portion of the electrode column, and the second sealing ring is clamped and arranged between the cover plate and the metal sheet. The first sealing ring and the second sealing ring are arranged separately.