Electrochromic sunroof based on all solid-state flexible thin film electrochromic device and methods to fabricate the same

An electrochromic sunroof, comprising:

• a first glass;
• a first adhesive layer disposed on the first glass;
• a second glass;
• a second adhesive layer disposed on the second glass;
• a solid-state electrochromic device (ECD) interposed between the first adhesive layer and the second adhesive layer;
• and
• a sealant disposed at edges of the first glass and the second glass to seal the ECD between the first glass and the second glass, wherein,
• the first adhesive layer and the second adhesive layer are optically transparent;
• the sealant includes an opening configured to allow excess of the first adhesive layer and the second adhesive layer to overflow;
• edges of the adhesive layers are equal to or beyond edges of the ECD;
• a lateral surface of the ECD not facing the opening is covered by an adhesive layer formed by the first adhesive layer and the second adhesive layer and covered by the sealant;
• a lateral surface of the ECD facing the opening is covered by the adhesive layer formed by the first adhesive layer and the second adhesive layer;
• and
• the sealant is adhesive and waterproof;
• and
• the ECD comprises a solid electrolyte layer, wherein the solid electrolyte layer contains solid electrolyte polymers having a polymer backbone structure, wherein the solid electrolyte polymers includes:
• (a) ion conducting polymers copolymerized with monomers or oligomers, wherein the monomers or oligomers have plasticizing moieties as a side chain;
• (b) ion conducting polymers covalently linked with plasticizing linear polymers that have a glass transition temperature less than −20° C.;
• (c) ion conducting polymers covalently linked with plasticizing polymer blocks that have plasticizing groups as side chains;
• or
• (d) brush copolymers with side chains of one or more ion-conducting species and one or more non-miscible groups.