EP0323007A2
Expired / Lapsed
EP
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Method of making an electrochromic layer and new electrochromic device
Assignee: Ford-Werke GmbH
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Filing: 1988-10-06
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Granted: —
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Expires: 2008-10-06
Abstract
Abstract This invention teaches an electrochromic device in which an electrochromic layer is positioned between two electrodes. The electrochromic layer comprises an inorganic based bulk material supporting electrochromic particles and ion producing particles in fixed but generally distributed positions therewithin. The bulk material permits migration of ions produced by the ion producing particles to and from the electrochromic particles upon change in voltage between the first and second electrodes. The bulk material also prohibits the passage of electrons therethrough when a voltage is applied between the first electrode and the second electrode, whereby an electric field is built up between the first and second electrodes which causes migration of the ions.
Inventors
- 👤 Hulya Demiryont
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 13:44
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/15; G02F1/1514; G02F1/1523; G02F1/1524
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
115 words
An electrochromic device comprising a first electrode, and a second electrode and an electrochromic layer between said first and said second electrodes, said layer comprising an inorganic based bulk material supporting electrochromic particles and ion producing particles in fixed but generally distributed positons therewithin, said bulk material permitting migratin of ions produced by said ion producing particles to and from said electrochromic particles upon change in voltage between said first and second electrodes, said bulk material also prohibiting the passage of electrons therethrough when a voltage is applied between said first electrode and said second electrode, whereby an electric field is built up between said first and second electrodes which causes migration of said ions.
Claim 2
Dependent Claim
115 words
An electrochromic device comprising a first electrode, and a second electrode and an electrochromic layer between said first and said second electrodes, said layer comprising an inorganic based bulk material supporting electrochromic particles and ion producing particles in fixed but generally distributed positons therewithin, said bulk material permitting migratin of ions produced by said ion producing particles to and from said electrochromic particles upon change in voltage between said first and second electrodes, said bulk material also prohibiting the passage of electrons therethrough when a voltage is applied between said first electrode and said second electrode, whereby an electric field is built up between said first and second electrodes which causes migration of said ions.
Claim 3
Dependent Claim
21 words
A device as claimed in Claim 1, wherein at least one of said first and second electrodes is a transparent electrode.
Claim 4
Dependent Claim
23 words
A device as claimed in Claim 1 or 2, wherein said inorganic based bulk material includes aluminum oxide, tantalum oxide or silicon oxide.
Claim 5
Independent Claim
32 words
A device as claimed in any one of Claims 1 to 3, wherein said electrochromic particles are anodic electrochromic particles, cathodic particles or a mixture of both anodic and cathodic electrochromic particles.
Claim 6
Dependent Claim
25 words
A device as claimed in Claim 4, wherein said anodic electrochromic particles are all the same and/or said cathodic electrochromic particles are all the same.
Claim 7
Independent Claim
87 words
A method making a material which can form an electrochromic layer which comprises the steps of applying an inorganic bulk material permitting the migration of ions therethrough but prohibiting the passage of electrons therethrough, electrochromic particles, and ion producing particles to an electrode of the electrochromic device by thermally evaporating a mixture of said inorganic bulk material, electrochromic particles, and ion producing particles in a vacuum of about 10⁻⁴ torr with said mixture and said electrode being spaced from one another by a distance of about 10cm.
Claim 8
Independent Claim
87 words
A method making a material which can form an electrochromic layer which comprises the steps of applying an inorganic bulk material permitting the migration of ions therethrough but prohibiting the passage of electrons therethrough, electrochromic particles, and ion producing particles to an electrode of the electrochromic device by thermally evaporating a mixture of said inorganic bulk material, electrochromic particles, and ion producing particles in a vacuum of about 10⁻⁴ torr with said mixture and said electrode being spaced from one another by a distance of about 10cm.
Claim 9
Dependent Claim
34 words
A method as claimed in Claim 6, wherein said finely divided electrochromic material is an anodic electrochromic material, a cathodic electrochromic material and a mixture of both anodic electrochromic material and cathodic electrochromic material.
Claim 10
Dependent Claim
29 words
A method as claimed in Claim 7, wherein said finely divided anodic electrochromic material is all the same and/or said finely divided cathodic electrochromic material is all the same.
Claim 11
Independent Claim
26 words
A method as claimed in any one of Claims 6 to 8, wherein said organic based bulk material includes aluminum oxide, tantalum oxide or silicon oxide.
References Cited (Backward Citations)
No citation records indexed.
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