Electrochromic polyelectrolyte gel medium having improved creep resistance and associated electrochromic device

  • US 9,405,047 B2
  • Filed: 11/24/2014
  • Issued: 08/02/2016
  • Est. Priority Date: 08/08/2012
  • Status: Active Grant
First Claim
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1. An electrochromic medium comprising:

  • a cross-linked, ionic polyelectrolyte gel matrix comprising;

    a polymeric backbone; and

    crosslinking moieties having ionic groups and counterions with opposite polarity to the ionic groups,wherein the crosslinking moieties are selected from a group consisting of viologen moieties, ammonium moieties, one or more pyridinium groups and one or more imidazolium groups.

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