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

摘要

An electrochromic device including a first substantially transparent substrate having an electrically conductive material associated therewith; a second substrate having an electrically conductive material associated therewith; and an electrochromic medium contained within a chamber positioned between the first and second substrates which includes: at least one solvent; at least one anodic electroactive material; at least one cathodic electroactive material; wherein at least one of the anodic and cathodic electroactive materials is electrochromic; and a creep resistant crosslinked polyelectrolyte gel matrix.

主权项

1. An electrochromic medium comprising:
a cross-linked, ionic polyelectrolyte gel matrix comprising:
a polymeric backbone; andcrosslinking 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.