Aqueous-based electric double-layer capacitor
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United States of America Patent
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May 3, 2016
Grant Date -
Feb 11, 2016
app pub date -
Oct 14, 2015
filing date -
Mar 18, 2012
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Abstract
An electric double-layer capacitor (EDLC) and method for manufacturing thereof. The ELDC includes at least one capacitor cell with two parallel current collectors, two opposite polarity electrodes, a separator, and a rigid dielectric frame. Each electrode is disposed on a respective current collector and impregnated with aqueous electrolyte. The frame is disposed along the perimeter on the surface of a current collector and enclosing the electrodes. The two electrodes of an individual cell are configured asymmetrically, such as being composed of different materials, having different weights, and/or having different thicknesses. The electrode material may include: activated carbon, a transitional metal oxide, a conductive polymer, and/or graphene.
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