Patent US3884716A successfully refreshed from Google Patents.
US3884716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage battery plate having a core of aluminum and a method of preparing the same
Assignee: Individual
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Filing: 1974-03-11
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Granted: 1975-05-20
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Expires: 1994-03-11
Abstract
Abstract A storage battery plate is provided having a core of aluminum, for example, which has its oxide coating replaced by a thin film coating of a metal such as zinc. The zinc in turn is coated with a thin layer of silver. Lead is thereafter deposited over the silver coating in the usual manner to form a battery plate.
Inventors
- 👤 Henry D Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:14
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M4/66; H01M4/68; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
62 words
A METHOD OF PREPARING A BATTERY PLATE FOR A LEAD-ACID STORAGE BATTERY COMPRISING: FORMING THE CORE OF SAID BATTERY PLATE OUT OF ALUMINUM, DEPOSITING A BARRIER COATING OVER SAID CORE OF ONE OF THE METALS SELECTED FROM THE GROUP CONSISTING OF ZINC, NICKEL AND CHROME, DEPOSITING A SILVER COATING OVER SAID BARRIER COATING, AND APPLYING A LEAD COATING OVER SAID SILVER COATING.
Claim 2
Independent Claim
62 words
A METHOD OF PREPARING A BATTERY PLATE FOR A LEAD-ACID STORAGE BATTERY COMPRISING: FORMING THE CORE OF SAID BATTERY PLATE OUT OF ALUMINUM, DEPOSITING A BARRIER COATING OVER SAID CORE OF ONE OF THE METALS SELECTED FROM THE GROUP CONSISTING OF ZINC, NICKEL AND CHROME, DEPOSITING A SILVER COATING OVER SAID BARRIER COATING, AND APPLYING A LEAD COATING OVER SAID SILVER COATING.
Claim 3
Dependent Claim
26 words
A method as recited in claim 1 wherein there is included the step of cleaning the core prior to depositing a barrier coating over said core.
Claim 4
Dependent Claim
68 words
A method as recited in claim 1 wherein the step of depositing a barrier coating over said core comprises: immersing said core in a solution of one gallon of sodium hydroxide in which there has been mixed 15 to 70 ounces of one of the metals selected from the group consisting of zinc, nickel and chrome at room temperature for an interval on the order of 2 seconds.
Claim 5
Dependent Claim
23 words
A method as recited in claim 1 wherein said step of depositing a second barrier coating comprises electrolytically depositing said second barrier coating.
Claim 6
Dependent Claim
49 words
IN A LEAD-ACID BATTERY WHEREIN THE BATTERY PLATES ARE COATED WITH LEAD, THE IMPROVEMENT COMPRISING: AN ALUMINUM CORE FOR EACH SAID BATTERY PLATE, A COATING OF ZINC OVER SACH SAID ALUMINUM CORE, AND A COATING OF SILVER OVER EACH SAID ZINC COATING ON WHICH SAID LEAD COATING IS DEPOSITED.
Claim 7
Dependent Claim
49 words
IN A LEAD-ACID BATTERY WHEREIN THE BATTERY PLATES ARE COATED WITH LEAD, THE IMPROVEMENT COMPRISING: AN ALUMINUM CORE FOR EACH SAID BATTERY PLATE, A COATING OF ZINC OVER SACH SAID ALUMINUM CORE, AND A COATING OF SILVER OVER EACH SAID ZINC COATING ON WHICH SAID LEAD COATING IS DEPOSITED.
Claim 8
Dependent Claim
41 words
In a lead-acid battery as recited in claim 5 wherein said zinc coating has a weight on the order of 0.02 milligrams per square inch of one surface, and said silver coating is on the order of a few angstroms thick.
Claim 9
Dependent Claim
64 words
In a lead-acid type storage battery, a method of preparing a battery plate comprising: forming the core of said battery plate out of aluminum, depositing a coating of zinc over said aluminum surface while simultaneously removing the oxide coating which is on said aluminum surface, depositing a coating of silver over said zinc coating, and depositing a lead coating on the surface of silver.
Claim 10
Dependent Claim
64 words
In a lead-acid type storage battery, a method of preparing a battery plate comprising: forming the core of said battery plate out of aluminum, depositing a coating of zinc over said aluminum surface while simultaneously removing the oxide coating which is on said aluminum surface, depositing a coating of silver over said zinc coating, and depositing a lead coating on the surface of silver.
Claim 11
Dependent Claim
61 words
The method as recited in claim 7 which includes the additional step of immersing said plate after it has been coated with lead in a solution of 2 to 5 volumes of hydrogen peroxide to one volume of sulfuric acid having a gravity of 1.2, for a time on the order of 1/2 hour to remove antimony from said lead coating.
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) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |