Sealed battery
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Jun 13, 2002
app pub date -
Dec 7, 2001
filing date -
Dec 8, 2000
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention provides a sealed battery, which comprises a battery element sealed by a flexible external material, said battery element being produced by winding up a positive electrode and a negative electrode each in band-like shape with a separator therebetween, said battery element comprises a wound-up element having plane portions and curved portions, and an active material layer is formed at least on one of the surfaces of the curved portions positioned on outermost periphery of each of the positive electrode and the negative electrode.
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