ELECTROCHEMICAL DEVICE
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United States of America Patent
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Issued Date -
Jun 4, 2015
app pub date -
Mar 5, 2013
filing date -
Jun 8, 2012
priority date (Note) -
Abandoned
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Abstract
An electrochemical device is provided with an electric storage element that is constituted by a first electrode sheet, a second electrode sheet, and a separate sheet installed between the two electrode sheets. The separate sheet includes: a first part (high liquid absorptivity part) sandwiched between the two electrode sheets; a second part (low liquid absorptivity part) extending outward from the two electrode sheets and not in contact with a lid; and a third part (contact part) in contact with a rim surface of the second electrode sheet, whereby the electrochemical device can quickly and reliably resolve a phenomenon of the amount of electrolyte decreasing in the part of the separate sheet sandwiched between the two electrode sheets, even if the phenomenon occurs frequently.
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