ENCLOSED TYPE BATTERY, GASKET FOR ENCLOSED TYPE BATTERY, AND MANUFACTURING METHOD OF GASKET

摘要

PPROBLEM TO BE SOLVED: To provide a gasket for an enclosed type battery in which cracks hardly occur. PSOLUTION: This is a gasket 9 for the enclosed type battery formed by injecting a resin material in a mold, and a weld part exists in an air vent extension part 12 extending from an annular main body 10, and the air vent extension part 12 is located at a position where the external pressure is not added at the time of sealing of the enclosed type battery. PCOPYRIGHT: (C)2005,JPO&NCIPI