Electrochemical device and method for manufacturing electrochemical device
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United States of America Patent
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Jan 12, 2016
Grant Date -
Jan 3, 2013
app pub date -
Feb 17, 2011
filing date -
Feb 23, 2010
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Abstract
An electrochemical device includes a wound laminated body with first and second electrodes, first and second separators, an electrolytic solution; and an outer package that houses the wound body and the electrolytic solution. The electrochemical device satisfies, at an outer end of the laminated body in a winding direction: the first and second separators protrude more outward in the winding direction than the second electrode; the first electrode protrudes more outward in the winding direction than the first and second separators; and an outer end of the first separator in the winding direction inclines toward a winding center and comes into contact with an upper surface of the second separator beyond the second electrode and an outer end of the first electrode in the winding direction inclines toward the winding center and comes into contact with the second separator and with the peripherally inner first electrode beyond the second electrode.
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