Chemical power supply cover with enhanced sealing performance

The utility model belongs to the field of chemical batteries, and particularly relates to a chemical power supply cover with enhanced sealing performance, which comprises a cover plate, an inner sealing layer arranged on the inner side of the cover plate, and an outer sealing layer arranged on the outer side of the cover plate, the cover plate, the inner sealing layer and the outer sealing layer are all provided with through holes with corresponding hole diameters, shapes and positions, and rivets can pass through the through holes; and the rivet is used for connecting the cover plate and the through hole of the tab. According to the chemical power source cover with the enhanced sealing performance, the sealing layers are arranged on the inner side and the outer side of the cover plate, so that the sealing performance is enhanced, and as a preferable form, the rivets are integrally formed, so that electrolyte leakage is prevented, and contact resistance is reduced. 本实用新型属于化学电池领域，具体涉及一种密封性增强的化学电源盖子，包括盖板、设置在所述的