US4418128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal-bromine secondary battery
Assignee: Meidensha Electric Manufacturing Co Ltd
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Filing: 1982-03-25
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Granted: 1983-11-29
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Expires: 2002-03-25
Abstract
Abstract In an electrolyte circulation type metal-bromine secondary battery of the kind in which the negatively active material is a metal selected from the group consisting of cadmium, zinc and lead, the anode electrolyte storage tank comprises an anode electrolyte zone and a complexing agent zone having a cross-sectional area smaller than that of the anode electrolyte zone.
Inventors
- 👤 Toshinobu Fujii
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:43
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/36; H01M10/365; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
90 words
In an electrolyte circulation type secondary battery in which the positively active material is bromine and the negatively active material is a metal selected from the group consisting of cadmium, zinc and lead, wherein the improvement in the metal-bromine secondary battery comprises an anode electrolyte storage tank having a complexing agent storage tank having a smaller cross-sectional area contained in the lower portion therein, wherein recycled electrolyte is introduced in the anode electrolyte storage tank by first passing the electrolyte through a complexing agent stored in the lower portion therein.
Claim 2
Dependent Claim
90 words
In an electrolyte circulation type secondary battery in which the positively active material is bromine and the negatively active material is a metal selected from the group consisting of cadmium, zinc and lead, wherein the improvement in the metal-bromine secondary battery comprises an anode electrolyte storage tank having a complexing agent storage tank having a smaller cross-sectional area contained in the lower portion therein, wherein recycled electrolyte is introduced in the anode electrolyte storage tank by first passing the electrolyte through a complexing agent stored in the lower portion therein.
Claim 3
Dependent Claim
21 words
A secondary battery according to claim 1, wherein said anode electrolyte storage tank is disposed within a cathode electrolyte storage tank.
Claim 4
Dependent Claim
22 words
A secondary battery according to claim 1, wherein a filter is arranged in the lower part of said anode electrolyte storage tank.
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) | 1986-11-28 | 1987-05-30 | 1987-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-28 | 1991-05-30 | 1991-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-28 | 1995-05-30 | 1995-11-29 | $7700.00 | Window Closed / Lapsed |