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Capacitor

  • US 20080297981A1
  • Filed: 04/25/2008
  • Published: 12/04/2008
  • Est. Priority Date: 05/28/2007
  • Status: Abandoned Application
First Claim
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1. A capacitor comprising:

  • a positive electrode composed of a polarizable electrode containing activated carbon;

    a negative electrode containing as an anode active material a carbon material capable of inserting or extracting lithium ion; and

    a nonaqueous electrolyte containing lithium ion, wherein a charge cutoff potential for said negative electrode is within a range of approximately 0.15 to 0.25 V (vs. Li/Li+).

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