View, Inc has filed a patent for electrochromic devices and methods of fabricating them. The devices include a counter electrode material that consists of a base anodically coloring material, one or more halogens, and optional additives. The method involves forming a cathodically coloring layer and an anodically coloring layer with specific materials and additives. GlobalData’s report on View gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData s company profile on View, smart windows was a key innovation area identified from patents. View's grant share as of June 2023 was 1%. Grant share is based on the ratio of number of grants to total number of patents.
The patent filed is for a method of fabricating electrochromic devices
A recently filed patent (Publication Number: US20230205032A1) describes a method for fabricating an electrochromic stack. The method involves forming a cathodically coloring layer and an anodically coloring layer. The anodically coloring layer includes an anodically coloring electrochromic material and one or more halogens, with the option of adding additional materials. The anodically coloring material can be selected from a group of metals including chromium, manganese, iron, cobalt, nickel, rhodium, ruthenium, vanadium, and iridium. The optional additive can be selected from a group of materials including silver, arsenic, gold, boron, cadmium, cesium, copper, europium, gallium, gadolinium, germanium, mercury, osmium, lead, palladium, promethium, polonium, platinum, radium, rubidium, terbium, technetium, thorium, thallium, tungsten, and combinations thereof.
The patent also describes an electrochromic stack that includes a cathodically coloring layer and an anodically coloring layer. The anodically coloring layer consists of an anodically coloring electrochromic material and one or more halogens, with the option of adding additional materials. The anodically coloring material can be selected from a group of metals including chromium, manganese, iron, cobalt, nickel, rhodium, ruthenium, vanadium, and iridium. The optional additive can be selected from a group of materials including silver, arsenic, gold, boron, cadmium, cesium, copper, europium, gallium, gadolinium, germanium, mercury, osmium, lead, palladium, promethium, polonium, platinum, radium, rubidium, terbium, technetium, thorium, thallium, tungsten, and combinations thereof.
Furthermore, the patent describes an integrated deposition system for fabricating the electrochromic stack. The system includes multiple deposition stations that are interconnected and allow for the passage of a substrate without exposing it to the external environment. The system includes a controller with program instructions for depositing the cathodically coloring layer and the anodically coloring layer on the substrate. The anodically coloring layer can be formed using a combination of nickel, tungsten, and the halogen.
Overall, this patent presents a method and system for fabricating electrochromic stacks with specific combinations of materials and additives. The electrochromic stacks can be used in various applications, such as smart windows and displays, where the color and transparency of the stack can be controlled electronically.
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