Electrochromic device
First Claim
1. An electrochemical device having at least one of electrically controllable optical or energy transmission properties comprising:
- a substrate;
a functional system formed on the substrate and comprising;
a bottom electrode coating formed on the substrate;
a top electrode coating formed on the bottom electrode coating; and
at least one electrochemically active film located between the bottom electrode coating and the top electrode coating, the at least one electrochemically active film being able to switch reversibly between a first state and a second state having optical and/or energy transmission properties different from the first state when electrical power is applied to the terminals of the bottom electrode coating and the top electrode coating,wherein the electrochemically active film is disposed immediately adjacent to and does not extend into the bottom electrode coating; and
a cover film formed on the functional system in which the cover film defines at least one surface cavity that passes through the cover film without fully penetrating the top electrode coating and in which the device comprises electrical connection means arranged at least partially in at least one surface cavity for electrical contact with the top electrode coating.
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Accused Products
Abstract
The invention relates to an electrochemical device (100) having electrically controllable optical and/or energy transmission properties comprising a substrate (40), a functional system (60) formed on the substrate and a cover film (56) formed on the functional system. The functional system comprises a bottom electrode coating (46), formed on the substrate, a top electrode coating (54) and at least one electrochemically active film (48, 52) located between the two electrode coatings, the electro-chemically active film being able to switch reversibly between a first state and a second state having optical and/or energy transmission properties different from the first state. The cover film defines at least one surface cavity (66) that passes through the cover film without penetrating the top electrode coating and the device comprises electrical connection means (70) arranged at least partially in at least one surface cavity for electrical contact with the top electrode coating.
43 Citations
27 Claims
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1. An electrochemical device having at least one of electrically controllable optical or energy transmission properties comprising:
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a substrate; a functional system formed on the substrate and comprising; a bottom electrode coating formed on the substrate; a top electrode coating formed on the bottom electrode coating; and at least one electrochemically active film located between the bottom electrode coating and the top electrode coating, the at least one electrochemically active film being able to switch reversibly between a first state and a second state having optical and/or energy transmission properties different from the first state when electrical power is applied to the terminals of the bottom electrode coating and the top electrode coating, wherein the electrochemically active film is disposed immediately adjacent to and does not extend into the bottom electrode coating; and a cover film formed on the functional system in which the cover film defines at least one surface cavity that passes through the cover film without fully penetrating the top electrode coating and in which the device comprises electrical connection means arranged at least partially in at least one surface cavity for electrical contact with the top electrode coating. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 23, 25, 26)
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20. A process for fabricating an electrochemical device having at least one of electrically controllable optical or energy transmission properties, comprising the steps of:
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depositing a bottom electrode coating onto a substrate; depositing at least one electrochemically active film onto the bottom electrode coating, wherein the at least one electrochemically active film contacts and does not penetrate the bottom electrode coating; depositing a top electrode coating onto at least one electrochemically active film, the at least one electrochemically active film being capable of switching reversibly between a first state and a second state having optical and/or energy transmission properties different from the first state when electrical power is applied to the terminals of the bottom electrode coating and top electrode coating; depositing a cover film onto the top electrode coating; carrying out an ablation of the material of the cover film so as to form at least one surface cavity that passes through the cover film without fully penetrating the top electrode coating; and adding electrical connection means arranged at least partially in at least one surface cavity for electrical contact with the top electrode coating. - View Dependent Claims (21, 22, 24, 27)
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Specification