US4336124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodes with current outlets
Assignee: Compagnie Generale des Etablissements Michelin SCA
•
Filing: 1980-07-07
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Granted: 1982-06-22
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Expires: 2000-07-07
Abstract
Abstract Electrode comprising a body, with a conductive porous skeleton, and a current outlet. The current outlet comprises a conductive plate with roughnesses which penetrate into the skeleton. The plate is rigidly connected to the skeleton by means of an electrolytic metal deposit.
Inventors
- 👤 Francois Gerard
- 👤 Jean-Yves Machat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:36
CPC Classifications
C; C25; C25B; C25B9/00; C25B9/60; C25B9/65; H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M50/00; H01M50/50; H01M50/531; H01M50/534; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
84 words
An electrode comprising, on the one hand, at least one body formed at least in part of an electron-conductive porous skeleton, and, on the other hand, at least one current outlet comprising at least one electron-conductive plate with roughnesses which penetrate into the skeleton, characterized by the fact that: the plate is firmly connected to the skeleton by an electrolytic metallic deposit which adheres both to the skeleton and to the plate, this deposit being inert under the conditions of use of the electrode.
Claim 2
Dependent Claim
84 words
An electrode comprising, on the one hand, at least one body formed at least in part of an electron-conductive porous skeleton, and, on the other hand, at least one current outlet comprising at least one electron-conductive plate with roughnesses which penetrate into the skeleton, characterized by the fact that: the plate is firmly connected to the skeleton by an electrolytic metallic deposit which adheres both to the skeleton and to the plate, this deposit being inert under the conditions of use of the electrode.
Claim 3
Dependent Claim
21 words
The electrode according to claim 1, characterized by the fact that the outlet is located at one end of the skeleton.
Claim 4
Dependent Claim
28 words
The electrode according to claim 1 or claim 2, characterized by the fact that the skeleton is clamped by pressure where it is in contact with the plate.
Claim 5
Dependent Claim
43 words
The electrode according to claim 3, characterized by the fact that the clamping results in a decrease Δe of the original thickness "e" of the skeleton, the ratio R s =(Δe/e) being at least equal to 5% and at most equal to 50%.
Claim 6
Dependent Claim
15 words
The electrode according to claim 1, characterized by the fact that the plate has openings.
Claim 7
Dependent Claim
130 words
The electrode according to claim 1, characterized by the fact that the roughnesses of the plate or plates of the outlet have, for each plate, main faces arranged practically along a plane, and by the fact that the ratio R a =(S f /S) is at least equal to 25% and at most equal to 70%, S f representing the sum of the areas of these main faces for all the roughnesses of the outlet, and S representing the area of the cross-section of the skeleton in the vicinity of the roughnesses of said outlet, the cross-section being taken along a plane parallel to the plane or planes of said main faces of the roughnesses, S f including the areas of the possible openings which open into these main faces.
Claim 8
Dependent Claim
36 words
The electrode according to claim 1, characterized by the fact that the plate has one or more folds, the roughnesses being formed by a part of the fold or of at least one of the folds.
Claim 9
Dependent Claim
67 words
The electrode according to claim 1, characterized by the fact that the outlet comprises two plates arranged on opposite sides of the skeleton and by the fact that the roughnesses of one plate, on the one hand, and the roughnesses of the other plate, on the other hand, are separated by the distance "a" varying from 20% to 100% of the original thickness "e" of the skeleton.
Claim 10
Dependent Claim
38 words
The electrode according to claim 8, characterized by the fact that each plate has a free end, the free ends of the two plates being welded together, at least one of these ends serving for the electrical connections.
Claim 11
Dependent Claim
24 words
The electrode according to claim 8, characterized by the fact that the roughnesses of one plate alternate with the roughnesses of the other plate.
Claim 12
Dependent Claim
36 words
The electrode according to claim 1, characterized by the fact that the transparency of each plate varies from 30% to 70% at least in the portion of the plate which is in contact with the skeleton.
Claim 13
Dependent Claim
19 words
The electrode according to claim 1, characterized by the fact that the roughnesses have the shape of triangular teeth.
Claim 14
Dependent Claim
50 words
The electrode according to claim 1, characterized by the fact that the outlet has a single plate and by the fact that the roughnesses pass through the entire thickness of the skeleton, the ends of the roughnesses which are located outside of the skeleton being in contact with the skeleton.
Claim 15
Dependent Claim
24 words
The electrode according to claim 1, characterized by the fact that the plate is applied in part against a main face of the skeleton.
Claim 16
Dependent Claim
54 words
The electrode according to claim 14, characterized by the fact that the plate comprises two folds of opposite direction, two faces separated by the line of one of these folds being applied against the corresponding faces of the end of the skeleton, the plate having a free end adjacent to the other fold line.
Claim 17
Dependent Claim
34 words
The electrode according to claim 1, characterized by the fact that the length L of the outlet has practically the same value as the length L e of the corresponding end of the skeleton.
Claim 18
Dependent Claim
36 words
The electrode according to claim 1, characterized by the fact that the plate has roughnesses arranged on both sides of a median plane, the roughnesses penetrating into two skeletons arranged on opposite sides of the plate.
Claim 19
Dependent Claim
24 words
The electrode according to claim 1, characterized by the fact that the skeleton is a felt of conductive fibers, at least on the surface.
Claim 20
Dependent Claim
12 words
An electrochemical device using at least one electrode according to claim 1.
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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) | 1985-06-21 | 1985-12-21 | 1986-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-21 | 1989-12-21 | 1990-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-21 | 1993-12-21 | 1994-06-22 | $7700.00 | Window Closed / Lapsed |