Carbon supercapacitor electrode materials

  • US 5,993,996 A
  • Filed: 09/16/1997
  • Issued: 11/30/1999
  • Est. Priority Date: 09/16/1997
  • Status: Expired due to Term
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First Claim
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1. A carbon electrode formed from a carbon, which carbon is prepared by a process comprising the step of hydrogenating the carbon followed by the step of sulfonating the carbon.

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