| 摘要 |
PURPOSE:To surely prevent a dislocation of a separator arranged between electrodes by a method wherein a sleeve creeping along an inner circumference face of a cap is formed at a gasket, the upper-end part of the sleeve is bent to be nearly L-shaped toward the inside and a peripheral edge of the separator is pressed toward a polarizable electrode on the side of the cap. CONSTITUTION:A gasket 10 is provided with the following: a spacer part 11 which is composed of an elastic and electrically insulating ring member such as a rubber of the like and which is arranged between an inner circumference face of a case main body 1 and an outer circumference face of a cap 2; a sleeve 12 which has been formed at an inner periphery edge of an opening part 1 so as to creep along an inner circumference face of the cap 2. A flange 13 which has been bent to be nearly L-shaped toward the inside is formed collectively at the upper-end part of the sleeve 12. When the gasket 10 is attached to the cap 2, a separator 4 is pressed onto a polarizable electrode 3b of the cap 2 by using the flange 13 of the gasket 10. Since the separator 4 is pressed by using the flange 13 of the gasket 10 in this manner, it is not dislocated carelessly by vibration at the time of a conveyance operation or the like. |
