Patent US4048047A successfully refreshed from Google Patents.
US4048047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrochemical cell with bipolar electrodes
Assignee: BASF SE
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Filing: 1976-01-14
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Granted: 1977-09-13
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Expires: 1996-01-14
Abstract
Abstract An electrochemical cell with a nonpartitioned electrolyte chamber and plane electrodes, which form a stack, the chamber filled by the electrolyte forming narrow gaps between the electrodes, and the electrode stack being assembled on a fixed baseplate so that its axis is essentially vertical.
Inventors
- 👤 Fritz Beck
- 👤 Diethard Francke
- 👤 Heinz Nohe
- 👤 Heinz Hannebaum
- 👤 Manfred Stroezel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:36
CPC Classifications
C; C25; C25B; C25B11/00; C25B11/02; C25B11/036
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
137 words
In an electrochemical cell, wherein plane electrodes of circular shape are located in a conjoint electrolyte chamber and are spaced from 0.05 to 2 mm apart, the spacing being fixed by radial insulating strips, sets of several electrodes being so arranged, in the form of a stack, that with the exception of the outermost electrodes each electrode acts both as an anode and as a cathode, and the entire stack being accommodated in a closed reaction vessel and being provided with means whereby electrolyte liquid can be fed into the center of the stack, the improvement that the electrode stack is built up on a central baseplate which serves as a carrier, contains means of feeding-in the electrolyte liquid and is in electrically conductive connection with the plate stack whilst being electrically insulated from the reaction vessel.
Claim 2
Dependent Claim
137 words
In an electrochemical cell, wherein plane electrodes of circular shape are located in a conjoint electrolyte chamber and are spaced from 0.05 to 2 mm apart, the spacing being fixed by radial insulating strips, sets of several electrodes being so arranged, in the form of a stack, that with the exception of the outermost electrodes each electrode acts both as an anode and as a cathode, and the entire stack being accommodated in a closed reaction vessel and being provided with means whereby electrolyte liquid can be fed into the center of the stack, the improvement that the electrode stack is built up on a central baseplate which serves as a carrier, contains means of feeding-in the electrolyte liquid and is in electrically conductive connection with the plate stack whilst being electrically insulated from the reaction vessel.
Claim 3
Dependent Claim
36 words
A cell as claimed in claim 1, wherein the outermost electrodes of the stack can be brought into electrically conductive connection with a source of direct current and are provided with means for producing this connection.
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) | 1980-09-12 | 1981-03-14 | 1981-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-12 | 1985-03-14 | 1985-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-12 | 1989-03-14 | 1989-09-13 | $7700.00 | Window Closed / Lapsed |