Invention Grant
- Patent Title: Electrochromic element
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Application No.: US16941732Application Date: 2020-07-29
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Publication No.: US11970662B2Publication Date: 2024-04-30
- Inventor: Fuminari Kaneko , Daisuke Goto , Masato Shinoda , Ryo Kawamura , Naru Tanaka , Tohru Yashiro , Mamiko Inoue , Naoki Ura
- Applicant: Ricoh Company, Ltd.
- Applicant Address: JP Tokyo
- Assignee: RICOH COMPANY, LTD.
- Current Assignee: RICOH COMPANY, LTD.
- Current Assignee Address: JP Tokyo
- Agency: XSENSUS LLP
- Priority: JP 19140655 2019.07.31 JP 20114998 2020.07.02
- Main IPC: C09K9/02
- IPC: C09K9/02 ; C07C313/06 ; C07F9/58 ; G02F1/1516
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Abstract:
An electrochromic element including: a first electrode; a second electrode disposed to face the first electrode with a gap between the first electrode and the second electrode; a first electrochromic layer disposed on or above the first electrode, including conductor or semiconductor nano-structures and an electrochromic compound; and an electrolyte layer including an electrolyte, disposed between the first electrochromic layer and the second electrode, wherein the electrochromic compound is a compound represented by General Formula 1, and an anion of the electrolyte is a monovalent anion having oxidation potential higher than reduction potential of a dication of General Formula 1 by 3.1 V or greater,
where X− is a monovalent anion having oxidation potential higher than reduction potential of the dication of General Formula 1 by 3.1 V or greater and W2+ is the dication represented by General Formula 2,
where X− is a monovalent anion having oxidation potential higher than reduction potential of the dication of General Formula 1 by 3.1 V or greater and W2+ is the dication represented by General Formula 2,
Public/Granted literature
- US20210032531A1 ELECTROCHROMIC ELEMENT Public/Granted day:2021-02-04
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