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Electric double layer capacitor

  • US 5,453,909 A
  • Filed: 10/05/1994
  • Issued: 09/26/1995
  • Est. Priority Date: 10/06/1993
  • Status: Expired due to Fees
First Claim
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1. An electric double layer capacitor comprising:

  • a pair of opposing polarized electrodes consisting of activated carbon;

    a separator, having characteristics which allow said separator to transmit ions but not to transmit electrons, for isolating said polarized electrodes from each other, said separator having an uneven shape in the form of a large number of dimples for increasing a surface area of said separator;

    a pair of external electrodes each having one terminal electrically connected to a corresponding one of said polarized electrodes; and

    an insulating molding case for externally extracting the other terminal of each of said external electrodes to accommodate said polarized electrodes together with an electrolytic solution.

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