Anti-bulging cylindrical battery

The utility model discloses an anti-bulging cylindrical battery which comprises a shell, a battery cell is fixedly arranged in a bottom cavity of the shell, an opening is formed in the top of the shell, a sealing piece is fixedly arranged at the opening, a plurality of through holes are formed in the sealing piece, sealing columns are arranged in the through holes in a sliding mode, and sealing flanges used for being matched with the inner walls of the through holes for sealing are arranged on the outer walls of the sealing columns. The utility model aims to provide an anti-bulging cylindrical battery capable of exhausting gas in time. 本实用新型公开了一种防鼓胀圆柱电池，包括底部空腔内固定设置有电池芯的壳体，壳体的顶部设置开口，开口固定设置封闭片，封闭片上开设若干个通孔，通孔内滑动设置封闭柱，封闭柱的外壁设置用于与通孔内壁配合封闭的封闭凸缘。实用新型的目的是提供一种能够及时排出气体的防鼓胀圆柱电池。