Organic solid electrolyte and coloring-discoloring device using the same

• US 5,419,854 A
• Filed: 12/21/1993
• Issued: 05/30/1995
• Est. Priority Date: 12/25/1992
• Status: Expired due to Fees

• Current Assignee: YKK Corporation
• Original Assignee: Yoshida Kogyo K.K.
• Inventors: Ishibashi, Akira, Wakabayashi, Masaki
• Primary Examiner(s): Tucker, Philip
• Application Number:
  US08/170,805
• Time in Patent Office: 525 Days
• Field of Search: 359/265, 359/270, 359/272, 359/275, 252/583, 429/192, 429/193
• US Class Current: 252/583
• CPC Class Codes: G02F 1/1525 characterised by a particular ion transporting layer, e.g. electrolyte
• CPC Class Codes: H01B 1/122 Ionic conductors
• CPC Class Codes: H01M 6/181 with polymeric electrolytes

Abstract

An organic solid electrolyte and an electrochromic device using the electrolyte are disclosed. The organic solid electrolyte comprises in combination a monosaccharide represented by the general formula: (CH₂ O)n wherein n is an integer of 5 to 7, or a derivative thereof, as at least part of a substrate, and a salt. The electrochromic device is manufactured by interposing the organic solid electrolyte between a transparent electrode having an electrochromic substance deposited thereon and a counter electrode.

Claims

1. An organic solid electrolyte comprising in combination:

(a) at least one compound selected from the group consisting of pentose, hexose, heptose, sugar alcohols thereof, aldonic acids thereof, uronic acids thereof, and saccharic acids thereof, as at least part of a substrate; and

(b) a salt.

2. An organic solid electrolyte according to claim 1, wherein said salt is selected from the group consisting of LiClO₄, KClO₄, NaClO₄, LiBF₄, KBF₄, NaBF₄, LiAsF₆, KAsF₆, NaAsF₆, KSCN, LiSCN, NaSCN, LiCF₃ SO₃, KCF₃ SO₃, NaCF₃ SO₃, LiBr, NaBr and KBr.

3. An organic solid electrolyte according to claim 1, wherein said salt is selected from the group consisting of LiCLO₄, KClO₄, NaClO₄, LiBF₄, KBF₄, NaBF₄, LiAsF₆, KAsF₆, and NaAsF₆.

4. An organic solid electrolyte according to claim 1, which further comprises in combination another substrate.

5. An organic solid electrolyte comprising:

(a) at least one carrier compound selected from the group consisting of penrose, hexose, heptose, sugar alcohols thereof, aldonic acids thereof, uronic acids thereof, and saccharic acids thereof; and

(b) at least one salt selected from the group consisting of LiClO₄, KClO₄, NaClO₄, LiBF₄, KBF₄, NaBF₄, LiAsF₆, KAsF₆, and NaAsF₆, the salt being incorporated into said carrier compound.

6. An organic solid electrolyte in the form of a thin film, comprising in combination:

(a) at least one carrier compound selected from the group consisting of penrose, hexose, heptose, sugar alcohols thereof, aldonic acids thereof, uronic acids thereof, and saccharic acids thereof; and

(b) at least one salt selected from the group consisting of LiClO₄, KClO₄, NaClO₄, LiBF₄, KBF₄, NaBF₄, LiAsF₆, KAsF₆, and NaAsF₆.

7. In a coloring-discoloring device operating on the principle of electrochromism and comprising a transparent electrode, a counter electrode, and an electrochromic substance and an electrolyte both interposed between said transparent electrode and said counter electrode, the improvement in which said electrolyte is an organic solid electrolyte comprising in combination:

(a) at least one compound selected from the group consisting of pentose, hexose, heptose, sugar alcohols thereof, aldonic acids thereof, uronic acids thereof, and saccharic acids thereof, as at least part of a substrate; and

(b) a salt.

8. A device according to claim 7, wherein said salt is selected from the group consisting of LiClO₄, KClO₄, NaClO₄, LiBF₄, KBF₄, NaBF₄, LiAsF₆, KAsF₆, NaAsF₆, KSCN, LiSCN, NaSCN, LiCF₃ SO₃, KCF₃ SO₃, NaCF₃ SO₃, LiBr, NaBr and KBr.

9. A device according to claim 7, wherein said organic solid electrolyte further comprises in combination another substrate.

10. A device according to claim 7, wherein said electrochromic substance is coated on the transparent electrode and said organic solid electrolyte is in contact with said electrochromic substance on the transparent electrode and said counter electrode.

11. An electrochromic device comprising:

a transparent electrode having an electrochromic substance coated thereon,

a counter electrode; and

an organic solid electrolyte interposed between said transparent electrode and said counter electrode and contacting with said electrochromic substance on the transparent electrode and said counter electrode, said organic solid electrolyte being a film which comprises in combination (a) at least one carrier compound selected from the group consisting of penrose, hexose, heptose, sugar alcohols thereof, aldonic acids thereof, uronic acids thereof, and saccharic acids thereof and (b) at least one salt selected from the group consisting of LiClO₄, KClO₄, NaClO₄, LiBF₄, KBF₄, NaBF₄, LiAsF₆, KAsF₆, NaAsF₆, KSCN, LiSCN, NaSCN, LiCF₃ SO₃, KCF₃ SO₃, NaCF₃ SO₃, LiBr, NaBr and KBr.

12. A device according to claim 7 or 11, wherein said electrochromic substance is at least one electroconductive polymer having a chromophoric group selected from the group consisting of phenylene polymer, naphthalene polymer, anthracene polymer, azulene polymer, thiophen polymer, alkylthiophene polymer, selenophene polymer, pyrrole polymer, pyridine polymer, furan polymer, aniline polymer, polymer having ferrocene in a side chain thereof, polymer having phthalocyanine in the side chain thereof, modifications of said polymers obtained by introducing an alkyl group thereinto as a side chain thereof, and modifications of said polymers obtained by introducing an alkyl group into a terminal thereof.