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REDOX SHUTTLES FOR HIGH VOLTAGE CATHODES

  • US 20090286162A1
  • Filed: 02/05/2009
  • Published: 11/19/2009
  • Est. Priority Date: 02/12/2008
  • Status: Active Grant
First Claim
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1. A rechargeable electrochemical cell comprising:

  • a positive electrode having at least one electroactive material having a recharged potential;

    a negative electrode;

    a charge-carrying electrolyte comprising a charge carrying medium and an electrolyte salt; and

    a cyclable redox chemical shuttle comprising an aromatic compound substituted with at least one tertiary alkyl group and at least one halogenated alkoxy group, dissolved in or dissolvable in the electrolyte and having an oxidation potential above the recharged potential of at least one of the electroactive materials of the positive electrode principal electroactive material.

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