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US4163706A
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Bi2 [M2-x Bix ]O7-y compounds wherein M is Ru, Ir or mixtures thereof, and electrochemical devices containing same (Bat-24)
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1977-12-02
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Granted: 1979-08-07
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Expires: 1997-12-02
Abstract
Abstract Novel bismuth-rich pyrochlore-type compounds are described having the formula:
Inventors
- 👤 Harold S. Horowitz
- 👤 John M. Longo
- 👤 Joseph T. Lewandowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:54
CPC Classifications
C; C01; C01G; C01G55/00; C25; C25B; C25B11/00; C25B11/04; C25B11/051; C25B11/055; C25B11/057; C25B11/065; C25B11/067; C25B11/073; C25B11/075; H; H01; H01M; H01M4/00; H01M4/86; H01M4/90; H01M4/9016; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
59 words
A compound having the formula: Bi.sub.2 [M.sub.2-x Bi.sub.x ]O.sub.7-y wherein M is selected from the group consisting of Ru, Ir and mixtures thereof, wherein x is greater than or equal to about 0.1 and less than or equal to about 1.0 and wherein y is greater than or equal to zero and less than or equal to about 1.0.
Claim 2
Dependent Claim
59 words
A compound having the formula: Bi.sub.2 [M.sub.2-x Bi.sub.x ]O.sub.7-y wherein M is selected from the group consisting of Ru, Ir and mixtures thereof, wherein x is greater than or equal to about 0.1 and less than or equal to about 1.0 and wherein y is greater than or equal to zero and less than or equal to about 1.0.
Claim 3
Dependent Claim
9 words
The compound of claim 1 wherein M is Ru.
Claim 4
Dependent Claim
9 words
The compound of claim 1 wherein M is Ir.
Claim 5
Dependent Claim
17 words
The compound of claim 1 wherein x is within the range of about 0.1 to about 0.8.
Claim 6
Dependent Claim
9 words
The compound of claim 4 wherein M is Ru.
Claim 7
Dependent Claim
9 words
The compound of claim 4 wherein M is Ir.
Claim 8
Dependent Claim
17 words
The compound of claim 1 wherein x is within the range of about 0.25 to about 0.6.
Claim 9
Dependent Claim
9 words
The compound of claim 7 wherein M is Ru.
Claim 10
Dependent Claim
9 words
The compound of claim 7 wherein M is Ir.
Claim 11
Dependent Claim
90 words
In an electrochemical device having an oxygen electrode containing an electrocatalyst material, the improvement comprising using as said electrocatalyst material one or more compounds selected from the group consisting of those compounds having the following formula: Bi.sub.2 [M.sub.2-x Bi.sub.x ]O.sub.7-y wherein M is selected from the group consisting of Ru, Ir and mixtures thereof, wherein x is greater than or equal to about 0.1 and less than or equal to about 1.0, and wherein y is greater than or equal to zero and less than or equal to about 1.0.
Claim 12
Dependent Claim
90 words
In an electrochemical device having an oxygen electrode containing an electrocatalyst material, the improvement comprising using as said electrocatalyst material one or more compounds selected from the group consisting of those compounds having the following formula: Bi.sub.2 [M.sub.2-x Bi.sub.x ]O.sub.7-y wherein M is selected from the group consisting of Ru, Ir and mixtures thereof, wherein x is greater than or equal to about 0.1 and less than or equal to about 1.0, and wherein y is greater than or equal to zero and less than or equal to about 1.0.
Claim 13
Dependent Claim
13 words
The electrochemical device of claim 10 wherein said device is a fuel cell.
Claim 14
Dependent Claim
13 words
The electrochemical device of claim 10 wherein said device is a metal-air battery.
Claim 15
Dependent Claim
12 words
The electrochemical device of claim 10 wherein said device is an electrolyzer.
Claim 16
Dependent Claim
14 words
The electrochemical device of claim 10 wherein said device is a metal electrowinning device.
Claim 17
Dependent Claim
10 words
The electrochemical device of claim 10 wherein M is ruthenium.
Claim 18
Dependent Claim
13 words
The electrochemical device of claim 15 wherein said device is a fuel cell.
Claim 19
Dependent Claim
13 words
The electrochemical device of claim 15 wherein said device is a metal-air battery.
Claim 20
Dependent Claim
12 words
The electrochemical device of claim 15 wherein said device is an electrolyzer.
Claim 21
Dependent Claim
14 words
The electrochemical device of claim 15, wherein said device is a metal electrowinning device.
Claim 22
Dependent Claim
10 words
The electrochemical device of claim 10 wherein M is iridium.
Claim 23
Dependent Claim
13 words
The electrochemical device of claim 20 wherein said device is a fuel cell.
Claim 24
Dependent Claim
13 words
The electrochemical device of claim 20 wherein said device is a metal-air battery.
Claim 25
Dependent Claim
12 words
The electrochemical device of claim 20 wherein said device is an electrolyzer.
Claim 26
Dependent Claim
14 words
The electrochemical device of claim 20 wherein said device is a metal electrowinning device.
Claim 27
Dependent Claim
18 words
The electrochemical device of claim 10 wherein x is within the range of about 0.1 to about 0.8.
Claim 28
Dependent Claim
13 words
The electrochemical device of claim 25 wherein said device is a fuel cell.
Claim 29
Dependent Claim
13 words
The electrochemical device of claim 25 wherein said device is a metal-air battery.
Claim 30
Dependent Claim
12 words
The electrochemical device of claim 25 wherein said device is an electrolyzer.
Claim 31
Dependent Claim
14 words
The electrochemical device of claim 25 wherein said device is a metal electrowinning device.
Claim 32
Dependent Claim
18 words
The electrochemical device of claim 10 wherein x is within the range of about 0.25 to about 0.6.
Claim 33
Dependent Claim
13 words
The electrochemical device of claim 30 wherein said device is a fuel cell.
Claim 34
Dependent Claim
13 words
The electrochemical device of claim 30 wherein said device is a metal-air battery.
Claim 35
Dependent Claim
12 words
The electrochemical device of claim 30 wherein said device is an electrolyzer.
Claim 36
Dependent Claim
14 words
The electrochemical device of claim 30 wherein said device is a metal electrowinning device.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-08-06 | 1983-02-05 | 1983-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-08-06 | 1987-02-05 | 1987-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-08-06 | 1991-02-05 | 1991-08-07 | $7700.00 | Window Closed / Lapsed |