Electrochromic element
First Claim
1. An electrochromic element having a configuration that a reductive coloration layer and an oxidative coloration layer are arranged in a facing manner between which a solid electrolyte layer is intervened;
- wherein said reductive coloration layer comprises a material containing a tungsten oxide and a titanium oxide;
wherein said oxidative coloration layer comprises a material containing a nickel oxide;
wherein a transparent intermediate layer comprising at least one of a metal oxide other than a nickel oxide and a metal as a main component is placed between said oxidative coloration layer and said solid electrolyte layer, andwherein said electrochromic element has a gray color at the time of coloration.
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Accused Products
Abstract
Deterioration of characteristics due to repeated cycles of coloration and discoloration in an electrochromic element comprising an oxidative coloration layer composed of a nickel oxide and a electrolyte composed of a solid electrolyte is suppressed. A lower ITO transparent electrode film 12 is formed on a transparent substrate 10. A nickel oxide film 32 making up an oxidative coloration layer, an intermediate layer 33, a tantalum oxide film making up a solid electrolyte layer, a mixed film comprising a tungsten oxide and a titanium oxide making up a reductive coloration layer, and an upper ITO transparent electrode film 20 making up an upper electrode film are formed on the lower ITO transparent electrode film 12 on this order. The intermediate layer 33 is a transparent film comprising a metal oxide such as SnO2, a metal such as Al, or a composite of the metal oxide and the metal.
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Citations
28 Claims
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1. An electrochromic element having a configuration that a reductive coloration layer and an oxidative coloration layer are arranged in a facing manner between which a solid electrolyte layer is intervened;
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wherein said reductive coloration layer comprises a material containing a tungsten oxide and a titanium oxide; wherein said oxidative coloration layer comprises a material containing a nickel oxide; wherein a transparent intermediate layer comprising at least one of a metal oxide other than a nickel oxide and a metal as a main component is placed between said oxidative coloration layer and said solid electrolyte layer, and wherein said electrochromic element has a gray color at the time of coloration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An electrochromic element comprising a first electrode layer, a reductive coloration layer, a solid electrolyte layer, an oxidative coloration layer, and a second electrode layer laminated between two plate materials, and at least combination of a plate material at one side with the electrode layer of said two plate materials and said two electrode layers being made transparent;
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wherein said reductive coloration layer is composed of a material containing a tungsten oxide and a titanium oxide; wherein said oxidative coloration layer is composed of a material containing a nickel oxide; wherein a transparent intermediate layer composed of a metal oxide other than a nickel oxide or a metal or a composite comprising a metal oxide other than the nickel oxide and a metal as a main component is placed between said oxidative coloration layer and said solid electrolyte layer, and wherein said electrochromic element has a gray color at the time of coloration. - View Dependent Claims (18, 19)
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20. An electrochromic element having
a substrate, a first electrode layer formed on said substrate in a fixed manner, an oxidative or reductive coloration layer formed on said first electrode layer in a fixed manner, a solid electrolyte layer formed on said oxidative or reductive coloration layer in a fixed manner, a reductive or oxidative coloration layer formed on said solid electrolyte layer in a fixed manner, and a second electrode layer formed on said reductive or oxidative coloration layer in a fixed manner, at least one of said first and second electrode layers being made transparent, wherein said reductive coloration layer is composed of a material containing a tungsten oxide and a titanium oxide; -
wherein said oxidative coloration layer is composed of a material containing a nickel oxide; wherein a transparent intermediate layer composed of a metal oxide other than a nickel oxide or a metal or a composite comprising a metal oxide and a metal as a main component is placed between said oxidative coloration layer and said solid electrolyte layer, and wherein said electrochromic element has a gray color at the time of coloration. - View Dependent Claims (21, 22)
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- 23. An electrochromic element comprising a transparent intermediate layer composed of a metal oxide other than a nickel oxide or a metal or a composite comprising a metal oxide other than the nickel oxide and a metal as a main component is placed between an oxidative coloration layer containing a nickel oxide and a solid electrolyte layer.
Specification