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US 10,591,795 B2Granted
Counter electrode for electrochromic devices
AssigneeView, Inc.
InventorsDane Gillaspie, Sridhar K. Kailasam, Robert T. Rozbicki
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Abstract
The embodiments herein relate to electrochromic stacks, electrochromic devices, and methods and apparatus for making such stacks and devices. In various embodiments, an anodically coloring layer in an electrochromic stack or device is fabricated to include a heterogeneous structure, for example a heterogeneous composition and/or morphology. Such heterogeneous anodically coloring layers can be used to better tune the properties of a device.
Claims34
An electrochromic device comprising:
- a substrate;
- an electrochromic layer disposed on or over the substrate, said electrochromic layer comprising a cathodically tinting electrochromic material;
- and
- a counter electrode layer also disposed on or over the substrate, said counter electrode layer comprising:
- (a) a first sublayer comprising a first anodically tinting material, and
- (b) a second sublayer comprising a second anodically tinting material, and
- (c) a third sublayer comprising a third anodically tinting electrochromic material,
- wherein the first anodically tinting material, second anodically tinting material, and third anodically tinting material have different compositions but each comprise an oxide of at least one transition metal,
- wherein the first sublayer is disposed between the electrochromic layer and the second sublayer, and
- wherein the second sublayer is disposed between the first sublayer and the third sublayer.
7 more elements
Dependencies are inferred from the claim text.