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Substituted phenothiazine redox shuttles for rechargeable lithium-ion cell

  • US 20060263697A1
  • Filed: 05/17/2005
  • Published: 11/23/2006
  • Est. Priority Date: 05/17/2005
  • Status: Active Grant
First Claim
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1. A rechargeable lithium-ion cell comprising:

  • (a) a positive electrode having a recharged potential;

    (b) a negative electrode;

    (c) a charge-carrying electrolyte comprising a charge carrying medium and a lithium salt; and

    (d) a cyclable redox chemical shuttle comprising an N-substituted or C-substituted phenothiazine compound dissolved in or dissolvable in the electrolyte and having an oxidation potential above the recharged potential of the positive electrode.

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