CYLINDRICAL BATTERY AND METHOD AND DEVICE FOR MANUFACTURING THEREOF

摘要

In the process of manufacturing a cylindrical battery, when a tubular separator (3) and bottom separator (5) are inserted into a battery casing (1) in which are accommodated positive electrode mixture pellets (2), by inserting the bottom separator (5) such that it is pushed into the battery casing (1) at the leading end of the tubular separator (3), the peripheral portion of the bottom separator (5) is raised up, so that both separators (3, 5) are inserted into the battery casing (1) in a condition with the leading end of the tubular separator (3) surrounded from the outside by this peripheral raised-up portion. A battery comprising such separator and an apparatus for manufacturing the battery are also disclosed.