Nonaqueous electrolyte secondary battery
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jan 14, 2003
Grant Date -
N/A
app pub date -
Nov 27, 2000
filing date -
Nov 25, 1999
priority date (Note) -
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Abstract
The present invention provides a nonaqueous electrolyte secondary battery, comprising a battery element produced by laminating and winding up a positive electrode and a negative electrode with a separator interposed therebetween. A separator is not provided on the outermost periphery of the battery element. A current collector surface of one of the positive electrode or the negative electrode is exposed to the ambient environment. A separation-preventive tape is attached on the battery element except a portion of one of the longer sides on the outermost periphery. This battery increases battery capacity of the thin-walled type nonaqueous electrolyte secondary battery.
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