US5130841A
Expired / Lapsed
US
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Method of making an electrochromic material and new electrochromic material
Assignee: Visteon Global Technologies Inc
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Filing: 1991-11-04
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Granted: 1992-07-14
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Expires: 2011-11-04
Abstract
Abstract This specification discloses vanadium oxide reduced by a codeposited reducing agent as an electrochromic material. The reducing agent may be a metal or a nonstoichiometric metal oxide. Preferred metals disclosed are vanadium and gold. Preferred metal oxides disclosed are nonstoichiometric lead oxide and nonstoichiometric bismuth oxide. The specification also discloses a method of making a nonelectrochromic, fully oxidized vanadium oxide [V 2 O 5 ] into an electrochromic material. The method includes the step of codepositing the fully oxidized vanadium oxide on a support for an electrochromic device along with a material which reduces the fully oxidized vanadium oxide to a less than fully oxidized state in which the reduced vanadium oxide is electrochromic.
Inventors
- 👤 Hulya Demiryont
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:27
CPC Classifications
C; C09; C09K; C09K9/00; C01; C01G; C01G31/00; C01G31/02; G; G02; G02F; G02F1/00; G02F1/01; G02F1/15; G02F1/1514; G02F1/1523; G02F1/1524; C01P; C01P2006/00; C01P2006/60
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
54 words
An enhanced electrochromic material, comprising reduced vanadium oxide and a non-stoichiometric metal oxide, said reduced vanadium oxide having a formula VO x wherein x is less than 2.5 , said non-stoichiometric metal oxide being present in said enhanced electrochromic material at a concentration up to about 10% by weight of said reduced vanadium oxide.
Claim 2
Dependent Claim
54 words
An enhanced electrochromic material, comprising reduced vanadium oxide and a non-stoichiometric metal oxide, said reduced vanadium oxide having a formula VO x wherein x is less than 2.5 , said non-stoichiometric metal oxide being present in said enhanced electrochromic material at a concentration up to about 10% by weight of said reduced vanadium oxide.
Claim 3
Dependent Claim
18 words
The enhanced electrochrommic material of claim 1, wherein said reduced vanadium oxide has a formula VO 2 .2.
Claim 4
Dependent Claim
17 words
The enhanced electrochromic material of claim 1, wherein said non-stoichiometric metal oxide is a non-stoichiometric lead oxide.
Claim 5
Dependent Claim
17 words
The enhanced electrochromic material of claim 1, wherein said non-stoichiometric metal oxide is a non-stoichiometric bismuth oxide.
Claim 6
Dependent Claim
35 words
The enhanced electrochromic material of claim 1, wherein said non-stoichiometric metal oxide is present in said enhanced electrochromic material at a concentration of about 3% to about 7% by weight of said reduced vanadium oxide.
Claim 7
Dependent Claim
11 words
An electrochromic device, including the enhanced electrochromic material of claim 1.
Claim 8
Independent Claim
83 words
A method for preparing reduced vanadium oxide, useful as an enhanced electrochromic material, comprising the steps of: vaporizing a mixture comprising fully oxidized vanadium oxide and a non-stoichiometric metal oxide; and codepositing said mixture onto a support for an electrochromic device to form a layer of said reduced vanadium oxide containing said non-stoichiometric metal oxide on said support, said non-stoichiometric metal oxide being present in said enhanced electrochromic material at a concentration up to about 10% by weight of said reduced vanadium oxide.
Claim 9
Independent Claim
83 words
A method for preparing reduced vanadium oxide, useful as an enhanced electrochromic material, comprising the steps of: vaporizing a mixture comprising fully oxidized vanadium oxide and a non-stoichiometric metal oxide; and codepositing said mixture onto a support for an electrochromic device to form a layer of said reduced vanadium oxide containing said non-stoichiometric metal oxide on said support, said non-stoichiometric metal oxide being present in said enhanced electrochromic material at a concentration up to about 10% by weight of said reduced vanadium oxide.
Claim 10
Dependent Claim
15 words
The method of claim 7, wherein said non-stoichiometric metal oxide is a non-stoichiometric lead oxide.
Claim 11
Dependent Claim
15 words
The method of claim 7, wherein said non-stoichiometric metal oxide is a non-stoichiometric bismuth oxide.
Claim 12
Dependent Claim
33 words
The method of claim 7, wherein said non-stoichiometric metal oxide is present in said enhanced electrochromic material at a concentration of about 3% to about 7% by weight of said reduced vanadium oxide.
References Cited (Backward Citations)
JPS5273749A
Cited
JPS5746290A
Cited
JPS57158834A
Cited
JPS58209721A
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JPS5955416A
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JPS59114519A
Cited
JPS60181732A
Cited
US4645308A
Cited
US4960324A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-07-14 | 1996-01-13 | 1996-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-14 | 2000-01-13 | 2000-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-14 | 2004-01-13 | 2004-07-14 | $7700.00 | Window Closed / Lapsed |