Cylindrical battery and method and device for manufacturing thereof
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United States of America Patent
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Dec 14, 2004
Grant Date -
Jan 16, 2003
app pub date -
Sep 10, 2002
filing date -
May 21, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
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.
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