US2013487A - Lead alloy - Google Patents
Lead alloy Download PDFInfo
- Publication number
- US2013487A US2013487A US729468A US72946834A US2013487A US 2013487 A US2013487 A US 2013487A US 729468 A US729468 A US 729468A US 72946834 A US72946834 A US 72946834A US 2013487 A US2013487 A US 2013487A
- Authority
- US
- United States
- Prior art keywords
- alloy
- lead
- tin
- alloys
- strontium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/68—Selection of materials for use in lead-acid accumulators
- H01M4/685—Lead alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C11/00—Alloys based on lead
- C22C11/02—Alloys based on lead with an alkali or an alkaline earth metal as the next major constituent
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- This invention relates to alloys of lead and certain alkaline earths, which alloys are particularly adapted for use as anodes in storage batteries.
- Strontium from 0.2% to 0.6%, tin from 0.2% to 2.0%, and the remainder lead;
- any two or all three of the metals barium, calcium and strontium may be used in the same alloy, providing the total percentage thereof lies between 0.2% and 1.5%, the quantity of tin being as above mentioned. It is to be understood that all percentages are to be taken by weight.
Description
Patented Sept. 3, 1935 UNITED STATES PATENT OFFICE LEAD ALLOY Robert H. Canfield and Herman F. Kaiser, Washington, D. C.
No Drawing. Application June 7, 1934, Serial No. 729,468
1 Claim.
This invention relates to alloys of lead and certain alkaline earths, which alloys are particularly adapted for use as anodes in storage batteries.
It is the object of this invention to provide alloys of increased hardness and durability and having greater resistance to attack by atomic oxygen than do the alloys heretofore known and used.
In our copending application Serial No. 697,144, filed November 8, 1933, we have disclosed and claimed certain lead alloys having improved characteristics of hardness and strength due to the inclusion in the alloy of small percentages of barium, calcium and strontium. We have found that the addition of from 0.2% to 2.0% of tin to such alloys greatly augments the above mentioned qualities. For instance, an alloy of lead comprising 0.4% strontium, 1.0% tin, and the rest lead has a Brinell hardness of over 15 as compared with a hardness of 9 for an alloy containing 0.4% strontium and the remainder lead. Our experiments have shown that the presence of tin in small proportions up to 2.0% of the weight of the alloy has a very favorable effect in increasing the resistance of the alloy to attack by atomic or nascent oxygen when the alloy is used as the anode in an electrolytic cell containing dilute sulphuric acid. In this case the penetration of oxide into the interior of the alloy and the resulting intercrystalline embrittlement is notably retarded by the specified percentages of tin.
While in general we obtain good results with alloys containing from 0.2% to 1.5% of one of following compositions: 5
Strontium from 0.2% to 0.6%, tin from 0.2% to 2.0%, and the remainder lead;
Calcium from 0.2% to 1.5%, tin 0.2% to 2.0%, and the balance lead;
Barium from 0.5% to 1.5%, tin 0.2% to 2.0%, and the rest lead.
However, any two or all three of the metals barium, calcium and strontium may be used in the same alloy, providing the total percentage thereof lies between 0.2% and 1.5%, the quantity of tin being as above mentioned. It is to be understood that all percentages are to be taken by weight.
While we have mentioned a specific use for which our alloys are especially well suited, it is 20 to be understood that their field of application is not limited thereto but that they will be found to have characterisics desirable for oher purposes than the one specified by way of illustration.
The invention herein described may be manu- 25 factured and used by or for the Government of the United States of America for governmental purposes, without the payment of any royalties thereon.
We claim:
An alloy consisting of strontium from 0.2% to 0.6% and tin from 0.2% to 2.0%, by weight, and the balance lead.
ROBERT H. CANFIELD. HERMAN F. KAISER.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US729468A US2013487A (en) | 1934-06-07 | 1934-06-07 | Lead alloy |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US729468A US2013487A (en) | 1934-06-07 | 1934-06-07 | Lead alloy |
Publications (1)
Publication Number | Publication Date |
---|---|
US2013487A true US2013487A (en) | 1935-09-03 |
Family
ID=24931176
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US729468A Expired - Lifetime US2013487A (en) | 1934-06-07 | 1934-06-07 | Lead alloy |
Country Status (1)
Country | Link |
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US (1) | US2013487A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3839023A (en) * | 1969-07-15 | 1974-10-01 | Redemat Sa | Creep resistant lead alloys |
FR2341660A1 (en) * | 1976-02-18 | 1977-09-16 | Globe Union Inc | ALLOY FOR LEAD ACID STORAGE BATTERIES |
US4137378A (en) * | 1977-05-31 | 1979-01-30 | General Battery Corporation | Calcium-strontium-lead grid alloy for use in lead-acid batteries |
US4170470A (en) * | 1976-02-18 | 1979-10-09 | Globe-Union Inc. | High strength lead alloy |
US4272339A (en) * | 1980-03-10 | 1981-06-09 | Knight Bill J | Process for electrowinning of metals |
US4343872A (en) * | 1977-05-31 | 1982-08-10 | General Battery Corporation | Calcium-strontium-lead grid alloy for use in lead-acid batteries |
US4358518A (en) * | 1980-05-27 | 1982-11-09 | General Motors Corporation | Wrought lead-calcium-strontium-tin (±barium) alloy for battery components |
-
1934
- 1934-06-07 US US729468A patent/US2013487A/en not_active Expired - Lifetime
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3839023A (en) * | 1969-07-15 | 1974-10-01 | Redemat Sa | Creep resistant lead alloys |
FR2341660A1 (en) * | 1976-02-18 | 1977-09-16 | Globe Union Inc | ALLOY FOR LEAD ACID STORAGE BATTERIES |
US4170470A (en) * | 1976-02-18 | 1979-10-09 | Globe-Union Inc. | High strength lead alloy |
US4137378A (en) * | 1977-05-31 | 1979-01-30 | General Battery Corporation | Calcium-strontium-lead grid alloy for use in lead-acid batteries |
US4343872A (en) * | 1977-05-31 | 1982-08-10 | General Battery Corporation | Calcium-strontium-lead grid alloy for use in lead-acid batteries |
US4272339A (en) * | 1980-03-10 | 1981-06-09 | Knight Bill J | Process for electrowinning of metals |
US4358518A (en) * | 1980-05-27 | 1982-11-09 | General Motors Corporation | Wrought lead-calcium-strontium-tin (±barium) alloy for battery components |
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