Gentex Corporation

Rongguang Lin

David A Theiste

Punam Giri

Kelvin L Baumann

Thomas F Guarr

Leroy J Kloeppner

Sue F Franz

Kathy E Roberts

Joel C Nemes

Harlan J Byker

Ramanujan Srinivasa

Darla J French

Elizabeth M Sanford

Leroy C Kloeppner

An energy storage device includes a cathodic material in an activated state; and an anodic material in an activated state; wherein: the cathodic material is covalently attached to, or confined within, a first polymer matrix, the first polymer matrix is configured to prevent or minimize substantial diffusion of the cathodic material in the activated state; and the anodic material is a phenazine, a phenothiazine, a triphenodithiazine, a carbazole, a indolocarbazole, a biscarbazole, or a ferrocene covalently attached to, or confined within, a second polymer matrix, the second polymer matrix is configured to prevent or minimize substantial diffusion of the anodic material in the activated state.

Electrochemical energy storage devices

An energy storage device includes a cathodic material in an activated state; and an anodic material in an activated state; wherein: the cathodic material is a viologen covalently attached to, or confined within, a first polymer matrix, the first polymer matrix is configured to prevent or minimize substantial diffusion of the cathodic material in the activated state; and the anodic material is a phenazine, a phenothiazine, a triphenodithiazine, a carbazole, a indolocarbazole, a biscarbazole, or a ferrocene covalently attached to, or confined within, a second polymer matrix, the second polymer matrix is configured to prevent or minimize substantial diffusion of the anodic material in the activated state.

An electrochromic device includes an electrochromic compound with reduced intermolecular interactions resulting in uncontrolled color changes, the electrochromic represented by Formula (I): 

Electrochromic compounds with improved color stability in their radical states

Protic-soluble electrochromic materials, ion-paired electrochromic materials including protic-soluble electrochromic materials, as well as electrochromic media and electrochromic devices incorporating such materials, are provided. The use of protic solvent mixtures, especially mixtures incorporating water, allows for the use of a wider variety of substrate materials. For example, plastics that may be soluble in organic aprotic solvent systems may be used in water-based devices.

Protic-soluble organic electrochromic compounds

The invention relates to an electrochromic device and uses thereof, wherein the electrochromic device includes an electrochromic compound with reduced intermolecular interactions resulting in uncontrolled color changes represented by Formula (I): 

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.

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

The present invention is directed to an electrochemical medium for use in a reversible electrodeposition device including at least one solvent, at least one anodic electroactive material, at least one active metal; and optionally at least one redox buffer.

Reversible electrodeposition devices and associated electrochemical media

A nanoporous-nanocrystalline film, comprising a nanoporous-nanocrystalline, semi-conducting metal oxide having a redox active material or redox chromophore attached thereto, wherein the redox active material or redox chromophore comprises at least one of an isocyanate, a silane, and a siloxane attachment promoting moiety.

Nanocrystalline metal oxide films and associated devices comprising the same

The present invention is directed to a reversible electrodeposition device comprising: a first substrate having an electrically conductive material associated therewith; a second substrate having an electrically conductive material associated therewith; a nucleation layer at least partially covering at least one of the electrically conductive materials of the first and second substrates; an electrochemical medium contained within a chamber positioned between the first and second substrates.

The present invention is directed to a reversible electrodeposition device comprising: a first substrate having an electrically conductive material associated therewith; a second substrate having an electrically conductive material associated therewith; a nucleation layer at least partially covering at least one of the electrically conductive materials of the first and second substrates; an electrochemical medium contained within a chamber positioned between the first and second substrates which comprises: at least one solvent; an anodic electroactive material; and cathodic electroactive material; and compositions and/or concentrations associated with the electrochemical medium which enhances the electrochemical performance of the electrodeposition device.

An electrochromic device comprising: 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 comprises: at least one solvent; an anodic material; a cathodic material, wherein both of the anodic and cathodic materials are electroactive and at least one of the anodic and cathodic materials is electrochromic, and wherein at least one of the anodic and cathodic materials is slow-diffusing; and an electron shuttle, wherein the electron shuttle serves to decrease switching time of the electrochromic device relative to the same without the electron shuttle.

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Holland, MI, United States of America

Rongguang Lin