# US 2020/0401008 A1 · Process for preparing multi-layer electrochromic stacks

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- Number: US 2020/0401008 A1
- Document ID: US20200401008A1
- Status: Published application
- Kind: A1
- Application number: 17/008,194
- Filed: 2020-08-31
- Published: 2020-12-24
- Earliest claimed: 2014-07-23
- Assignees: Kinestral Technologies, Inc.
- Applicants: Kinestral Technologies, Inc.
- Inventors: Hye Jin Choi; Mark Bailey; John David Bass; Stephen Winthrop von Kugelgen; Eric Lachman; Howard W. Turner; Daniel Mark Giaquinta
- Web page: https://patentgrep.com/patent/US20200401008A1

## CPC

- G02F 1/155: Electrodes
- B05D 1/005: {Spin coating}
- B05D 3/0486: {Operating the coating or treatment in a controlled atmosphere}
- B32B 17/10513: {Electrochromic layer}
- B82Y 30/00: Nanotechnology for materials or surface science, e.g. nanocomposites
- C03C 17/25: by deposition from the liquid phase
- C03C 2217/21: Oxides
- C23C 18/1254: {Sol or sol-gel processing}
- G02F 1/1523: comprising inorganic material
- G02F 1/1524: Transition metal compounds
- G02F 2001/1555: {Counter electrode}
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- B05D: PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (conveying articles or workpieces through baths of liquid B65G, e.g. B65G49/02)
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B82Y: SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- C03C: CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C23C: COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL (making metal-coated products by extrusion B21C23/22; covering with metal by connecting pre-existing layers to articles, see the relevant places, e.g. B21D39/00, B23K; metallising of glass C03C; metallising mortars, concrete, artificial stone, ceramics or natural stone C04B41/00; enamelling of, or applying a vitreous layer to, metals C23D; treating metal surfaces or coating of metals by electrolysis or electrophoresis C25D; single-crystal film growth C30B; by metallising textiles D06M11/83; decorating textiles by locally metallising D06Q1/04)

## Abstract

Process for forming a multi-layer electrochromic structure, the process comprising depositing a film of a liquid mixture onto a surface of a substrate, and treating the deposited film to form an anodic electrochromic layer, the liquid mixture comprising a continuous phase and a dispersed phase, the dispersed phase comprising metal oxide particles, metal alkoxide particles, metal alkoxide oligomers, gels or particles, or a combination thereof having a number average size of at least 5 nm.

## Claims

### Claim at position 1

-28. (canceled)

### Claim 29

A process for preparing a multi-layer electrochromic structure, comprising:
depositing a film of a first liquid mixture onto an electrode substrate film to form an electrode electrochromic layer having an electrochemical state and a surface;
depositing a film of a second liquid mixture onto a counter-electrode substrate to form a counter-electrode electrochromic layer comprising an inorganic electrochromic material on the counter-electrode substrate, wherein the counter-electrode electrochromic layer comprises a surface and an electrochemical state, the electrochemical state of the counter-electrode electrochromic layer being matched to the electrochemical state of the thermally treated electrode; and
forming a laminate of the electrode electrochromic layer, the counter-electrode electrochromic layer and an ion conductor layer, the ion conductor layer being disposed between the surface of the electrode electrochromic layer and the surface of the counter-electrode electrochromic layer.