DRY BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a dry battery capable of surely preventing leakage of liquid due to reduction of a sealant with a simple structure causing no cost increase. SOLUTION: A hollow and cylindrical positive electrode mix 2 is stored in a battery case 1 formed into a bottomed cylindrical shape having a positive electrode projecting part 1a serving as a positive electrode terminal in the center part of its bottom surface, a gel negative electrode 8 is stored in the inside of the positive electrode mix 2 through a cylindrical separator 9, and the opening part of the battery case 1 is sealed by a sealing body 10. The separator 9 is formed by cylindrically rolling a separator piece having a cut portion 17 formed by cutting the corner part of the rolled end on the sealing body 10 side in the four corners of a rectangular shape.