Patent US2690820A successfully refreshed from Google Patents.
US4668531A
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US
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Method for manufacture of electrode
Assignee: De Nora Permelec Ltd
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Filing: 1986-06-25
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Granted: 1987-05-26
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Expires: 2006-06-25
Abstract
Abstract A method for the manufacture of an electrode by a thermal treatment of a liquid composition containing an electrode component metal, where the electrode is produced in a high yield and high ratio of retention of the component metal, in which a liquid composition containing an electrode component metal and an organic compound as a ligand capable of forming a complex with a metal ion of the electrode component metal is heat treated.
Inventors
- 👤 Hiroshi Asano
- 👤 Takayuki Shimamune
- 👤 Yukiei Matsumoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:34
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/02; C23C18/08; C25; C25B; C25B11/00; C25B11/04; C25B11/051; C25B11/073; C25B11/091; H; H01; H01M; H01M4/00; H01M4/86; H01M4/88; H01M4/8825; H01M4/8828; H01M4/8878; H01M4/8882; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A method for manufacturing an electrolytic electrode comprising the steps of: (a) forming a solution containing an electrode component metal selected from the group consisting of Al, Sn, Sb, Ge, Bi, Ga, In, Ti, Zr, Ta, Hf, V, Mo, W, Ru, Pd and Ir, and at least one organic compound selected from the group consisting of ascorbic acid, pyrogallol, pyridinepentacarboxylic acid, 8-hydroxyquinone-5-sulfonic acid and aluminon as a ligand capable of forming a complex with metal ions of said electrode component metal; (b) coating the solution formed in (a) onto an electrode substrate; and (c) subjecting said coated substrate to thermal treatment at an elevated temperature of from about 250° to about 800° C. in an oxidative atmosphere, wherein the volatilization and diffusion of said electrode component metal combined with said organic compound is prevented during the thermal treatment.
Claim 2
Independent Claim
138 words
A method for manufacturing an electrolytic electrode comprising the steps of: (a) forming a solution containing an electrode component metal selected from the group consisting of Al, Sn, Sb, Ge, Bi, Ga, In, Ti, Zr, Ta, Hf, V, Mo, W, Ru, Pd and Ir, and at least one organic compound selected from the group consisting of ascorbic acid, pyrogallol, pyridinepentacarboxylic acid, 8-hydroxyquinone-5-sulfonic acid and aluminon as a ligand capable of forming a complex with metal ions of said electrode component metal; (b) coating the solution formed in (a) onto an electrode substrate; and (c) subjecting said coated substrate to thermal treatment at an elevated temperature of from about 250° to about 800° C. in an oxidative atmosphere, wherein the volatilization and diffusion of said electrode component metal combined with said organic compound is prevented during the thermal treatment.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-25 | 1990-11-24 | 1991-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-25 | 1994-11-24 | 1995-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-25 | 1998-11-24 | 1999-05-26 | $7700.00 | Window Closed / Lapsed |