Electrochromic devices and methods
DCFirst Claim
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1. A heat treated electrochromic device comprising:
- a) a first electrode comprising one of a cathodic electrochromic layer or an anodic counter electrode layer,b) a second electrode comprising the other of said cathodic electrochromic layer or said anodic counter electrode layer,c) an ion-conductor layer for conducting ions between said first and second electrodes,d) a first conductive layer, ande) a second conductive layer,said first and second electrodes and said ion-conductor layer being sandwiched between said first and second conductive layers,said anodic counter electrode layer comprising lithium and a mixed tungsten-nickel oxide substantially in crystalline form, andwherein the amount of nickel in said mixed tungsten-nickel oxide ranges from 15% to 90% by weight of said mixed tungsten-nickel oxide.
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Abstract
A heat treated electrochromic device comprising an anodic complementary counter electrode layer comprised of a mixed tungsten-nickel oxide and lithium, which provides a high transmission in the fully intercalated state and which is capable of long term stability, is disclosed. Methods of making an electrochromic device comprising an anodic complementary counter electrode comprised of a mixed tungsten-nickel oxide are also disclosed.
152 Citations
21 Claims
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1. A heat treated electrochromic device comprising:
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a) a first electrode comprising one of a cathodic electrochromic layer or an anodic counter electrode layer, b) a second electrode comprising the other of said cathodic electrochromic layer or said anodic counter electrode layer, c) an ion-conductor layer for conducting ions between said first and second electrodes, d) a first conductive layer, and e) a second conductive layer, said first and second electrodes and said ion-conductor layer being sandwiched between said first and second conductive layers, said anodic counter electrode layer comprising lithium and a mixed tungsten-nickel oxide substantially in crystalline form, and wherein the amount of nickel in said mixed tungsten-nickel oxide ranges from 15% to 90% by weight of said mixed tungsten-nickel oxide. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A heat treated electrochromic device comprising:
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a) a first electrode comprising one of a cathodic electrochromic layer or an anodic counter electrode layer, b) a second electrode comprising the other of said cathodic electrochromic layer or said anodic counter electrode layer, c) a lithium ion-conducting layer for conducting ions between said first and second electrodes, wherein said lithium ion-conducting layer comprises material selected from the group consisting of silicates, silicon oxides, and borates, d) a first conductive layer, and e) a second conductive layer, said first and second electrodes and said ion-conductor layer being sandwiched between said first and second conductive layers, and said anodic counter electrode layer comprising lithium and a mixed tungsten-nickel oxide substantially in crystalline form. - View Dependent Claims (19)
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20. A heat treated electrochromic device comprising:
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a) a first electrode comprising one of a cathodic electrochromic layer or an anodic counter electrode layer, b) a second electrode comprising the other of said cathodic electrochromic layer or said anodic counter electrode layer, c) an ion-conductor layer for conducting ions between said first and second electrodes, d) a first conductive layer containing a first metal oxide, and e) a second conductive layer containing a second metal oxide, wherein said first and second metal oxides are different, said first and second electrodes and said ion-conductor layer being sandwiched between said first and second conductive layers, and said anodic counter electrode layer comprising lithium and a mixed tungsten-nickel oxide substantially in crystalline form. - View Dependent Claims (21)
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Specification