Electrochromic devices having improved ion conducting layers
First Claim
1. An electrochromic device comprising:
- a first electrode comprising one of an electrochromic electrode layer and a counter electrode layer,a second electrode comprising the other of said electrochromic electrode layer and said counter electrode layer,an ion-conductor layer for conducting ions between said first and second electrodes comprising at least two ion transport layers and a buffer layer, said at least two ion transport layers and said buffer layer alternating within said ion conductor layer such that said ion transport layers are in communication with said first and second electrodes,a first conductive layer, anda second conductive layer,said first and second electrodes and said ion-conductor layer being sandwiched between said first and second conductive layers.
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Accused Products
Abstract
An improved ion conductor layer for use in electrochromic devices and other applications is disclosed. The improved ion-conductor layer is comprised of at least two ion transport layers and a buffer layer, wherein the at least two ion transport layers and the buffer layer alternate within the ion conductor layer such that the ion transport layers are in communication with a first and a second electrode. Electrochromic devices utilizing such an improved ion conductor layer color more deeply by virtue of the increased voltage developed across the ion conductor layer prior to electronic breakdown while reducing the amount of electronic leakage. Also disclosed are methods of making electrochromic devices incorporating the improved ion conductor layer disclosed herein and methods of making ion conductors for use in other applications.
181 Citations
57 Claims
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1. An electrochromic device comprising:
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a first electrode comprising one of an electrochromic electrode layer and a counter electrode layer, a second electrode comprising the other of said electrochromic electrode layer and said counter electrode layer, an ion-conductor layer for conducting ions between said first and second electrodes comprising at least two ion transport layers and a buffer layer, said at least two ion transport layers and said buffer layer alternating within said ion conductor layer such that said ion transport layers are in communication with said first and second electrodes, a first conductive layer, and a second conductive layer, said first and second electrodes and said ion-conductor layer being sandwiched between said first and second conductive layers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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- 29. An ion conductor layer for transporting ions between a first electrode and a second electrode comprising at least two ion transport layers and a buffer layer, said at least two ion transport layers and said buffer layer alternating within said ion conductor layer such that said each of said at least two ion transport layers are in communication with said first and second electrodes.
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40. An electrochromic device comprising:
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a) a first electrode comprising one of an electrochromic electrode layer and a counter electrode layer, b) a second electrode comprising the other of said electrochromic electrode layer and said counter electrode layer, c) an ion-conductor layer for conducting ions between said first and second electrodes comprising at least three ion transport layers and at least two buffer layers, said at least three ion transport layers and said at least two buffer layers alternating within said ion conductor layer such that two of said ion transport layers are in communication with 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. - View Dependent Claims (41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53)
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54. An electrochromic device comprising:
- a first electrode comprising one of an electrochromic electrode layer and a counter electrode layer,
a) a second electrode comprising the other of said electrochromic electrode layer and said counter electrode layer, b) an ion-conductor layer for conducting ions between said first and second electrodes comprising at least two ion transport layers and a buffer layer, said at least two ion transport layers and said buffer layer alternating within said ion conductor layer such that said ion transport layers are in communication with said first and second electrodes, said buffer layer comprising a mixture of a nickel oxide and a tungsten oxide, wherein the amount of said nickel oxide to the amount of said tungsten oxide ranges from about 25;
1 to about 1;
25,c) a first conductive layer, and d) a second conductive layer, said first and second electrodes and said ion-conductor layer being sandwiched between said first and second conductive layers.
- a first electrode comprising one of an electrochromic electrode layer and a counter electrode layer,
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55. An electrochromic device comprising:
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a) a first electrode comprising one of an electrochromic electrode layer and a counter electrode layer, b) a second electrode comprising the other of said electrochromic electrode layer and said counter electrode layer, c) an ion-conductor layer for conducting ions between said first and second electrodes comprising at least two ion transport layers and a buffer layer, said at least two ion transport layers and said buffer layer alternating within said ion conductor layer such that said ion transport layers are in communication with said first and second electrodes, said buffer layer comprising a lithium-based ceramic material; 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. - View Dependent Claims (56, 57)
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Specification