Insulated glass unit utilizing electrochromic elements
AssigneePolyceed Inc.
InventorsAnoop Agrawal, Lori L. Adams, John P. Cronin
Life of this patent
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Abstract
Methods and materials to fabricate electrochromic including electrochemical devices are disclosed. In particular, emphasis is placed on the composition, fabrication and incorporation of electrolytic sheets in these devices. Composition, fabrication and incorporation of redox layers and sealants suitable for these devices are also disclosed. Incorporation of EC devices in insulated glass system (IGU) windows is also disclosed.
Claims20
An insulated glass unit (IGU) having a single sealed cavity formed between (a) an electrochromic (EC) element and (b) a second element that is a transparent element or is a privacy element configured to reversibly change its optical state from clear transparent state to an opaque state by application of an electrical voltage,
- wherein the said cavity is filled with a gas,
- wherein at least one of the surfaces of elements (a) and (b) is coated with a low-emissivity (Low-E) coating, and
- wherein the said IGU has the following properties:
- (i) the Solar Heat Gain Coefficient (SHGC) of the said IGU is configured to be reversibly varied from about a range between 0.25 and 0.55 down to a range between 0.03 and less than 0.15;
- and (ii) the said IGU has a thermal resistance (R value) of greater than 4.5 (w/m2K)−1.
An insulated glass unit (IGU) comprising three elements:
- (a) an electrochromic (EC) element, (b) a second element that is transparent or is a privacy element configured to reversibly changing its optical state from clear transparent state to an opaque state by application of an electrical voltage, and (c) a third element that is transparent or is a privacy element configured to reversibly changing its optical state from clear transparent state to an opaque state by application of an electrical voltage;
- wherein the said EC element and the second element are separated by a first cavity filled with gas and the said second element and the third element are separated by a second cavity filled with gas;
- and at least one of the sides of the EC element facing the first cavity or at least one surface of the second and the third elements is further coated with a low-emissivity (Low-E) coating, and wherein the said IGU has the following properties (a) the Solar Heat Gain Coefficient (SHGC) of the said IGU is configured to be reversibly varied from about a range between 0.25 and 0.55 down to a range between 0.03 and less than 0.15 and (b) a R value of greater than 7.5 (W/m2K)−1.
An insulated glass unit (IGU) comprising three elements:
- (a) an electrochromic (EC) element, (b) a second element that is transparent or is a privacy element configured to reversibly changing its optical state from clear transparent state to an opaque state by application of an electrical voltage, and (c) a third element that is transparent or is a privacy element configured to reversibly changing its optical state from clear transparent state to an opaque state by application of an electrical voltage;
- wherein the said EC element and the second element are separated by a first cavity filled with gas and the said second element and the third element are separated by a second cavity filled with gas;
- and at least one of the sides of the EC element facing the first cavity or at least one surface of the second and the third elements is further coated with a low-emissivity (Low-E) coating, and wherein the said IGU has the following properties:
- (a) the Solar Heat Gain Coefficient (SHGC) of the said IGU is configured to be reversibly varied from about a range between 0.25 and 0.55 down to a range between 0.03 and less than 0.15;
- and (b) the said first cavity and the second cavity are not sealed from each other.
An insulated glass unit (IGU) comprising an electrochromic (EC) element and a vacuum insulated glass (VIG) element which is (a) capable of reversibly varying the Solar Heat Gain Coefficient (SHGC) of the said IGU from about a range between 0.25 and 0.55 down to a range between 0.03 and less than 0.10 and (b) the said IGU has a thermal resistance (R value) of greater than 7 (w/m2K)−1.
Dependencies are inferred from the claim text.