CN104377364A - Lead acid battery negative grid alloy and preparation method thereof - Google Patents
Lead acid battery negative grid alloy and preparation method thereof Download PDFInfo
- Publication number
- CN104377364A CN104377364A CN201410527739.8A CN201410527739A CN104377364A CN 104377364 A CN104377364 A CN 104377364A CN 201410527739 A CN201410527739 A CN 201410527739A CN 104377364 A CN104377364 A CN 104377364A
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- China
- Prior art keywords
- alloy
- lead
- graphite
- acid battery
- battery negative
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Classifications
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- 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
- C22C11/06—Alloys based on lead with tin 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
Abstract
The invention relates to a grid alloy and especially relates to a lead acid battery negative grid alloy and a preparation method thereof. A negative grid prepared from the lead acid battery negative grid alloy has strong mechanical strength suitable for plate coating and has short time efficiency. The lead acid battery negative grid alloy mainly comprises, by mass, 0.1-0.4% of tin, 0.02-0.04% of aluminum, 0.2-0.4% of graphite and the balance lead. The lead acid battery negative grid alloy is a lead-tin-aluminum-graphite alloy. The lead acid battery negative grid prepared from the lead acid battery negative grid alloy has short time efficiency within 2 days.
Description
Technical field
The present invention relates to a kind of grid alloy, particularly a kind of lead-acid battery negative plate grid alloy and preparation method thereof.
Background technology
At present because national policy forbids the production of Qian Ti Cadmium battery, present battery production main flow transfers plumbous calcium series grid to, plumbous calcium series grid alloy, alloy lattice structural instability after casting, grid is softer, can be out of shape in smear process, causes smear scrappage higher, after hardening during point brushing piece because grid is out of shape, frame of pole plate is easily cut partially to cause and is scrapped.So grid will have longer timeliness phase, be generally 4 ~ 7 days, the production cycle is long, so the timeliness phase longly just means that fund overstocks, production cost is higher.Also to take into account the stability of alloy lattice to solve the long problem of grid timeliness in industry, a lot of technical staff has carried out a large amount of exploratory development, mainly contain and change alloying component and high-temperature aging two aspects, but effect is also not obvious, wherein to harden some achievement with high-temperature aging again, but normally high-temperature aging 8 ~ 24h, and then carry out nature and shelve timeliness 3 days, the timeliness phase is still partially long.
Summary of the invention
The invention provides a kind of lead-acid battery negative plate grid alloy, the negative grid mechanical strength adopting this alloy to make strengthens, and the timeliness phase is short, and the intensity of grid is suitable for coated plate.
The present invention also provides a kind of preparation method of described lead-acid battery negative plate grid alloy.
The technical solution adopted for the present invention to solve the technical problems is: a kind of lead-acid battery negative plate grid alloy, the main component of grid alloy is plumbous, this alloy comprises following in the component of mass fraction: tin 0.1% ~ 0.4%, aluminium 0.02% ~ 0.04%, graphite 0.2% ~ 0.4%, surplus is plumbous.What the present invention adopted is slicker solder aluminium graphite alloy, and graphite alloy does lead-acid storage battery negative grid, and aging time can foreshorten in 2 days.
As preferably, this alloy comprises following in the component of mass fraction: tin 0.2%, aluminium 0.04%, graphite 0.28%, and surplus be lead.
As preferably, this alloy comprises following in the component of mass fraction: tin 0.11%, aluminium 0.021%, graphite 0.202%, and surplus be lead.
As preferably, this alloy comprises following in the component of mass fraction: tin 0.4%, aluminium 0.027%, graphite 0.398%, and surplus be lead.
A preparation method for described lead-acid battery negative plate grid alloy, is characterized in that the method is specially:
A, prepare graphite lead alloy, make the mass fraction of graphite in graphite lead alloy be 2% ~ 3%;
B, according to negative grid alloy composition proportion, the lead of remainder is joined in lead melting furnace, be heated to 550 ~ 600 DEG C, then a is walked the graphite lead alloy obtained to join in lead melting furnace and stir, again mock silver is joined in lead melting furnace, fully melt and stir, obtaining negative grid alloy.
Increase graphite in negative grid alloy of the present invention, the mechanical strength of grid can be changed.The grid that Pb-Ca-Al alloy makes can As time goes within the timeliness phase, and lattice increases gradually, and the timeliness phase is generally 4 ~ 7 days, and the timeliness phase is long, and this just means that the production cycle is long, and fund pressurization is serious.And the present invention adds graphite in negative grid, the mechanical strength of grid strengthens, and the timeliness phase is short, and the intensity of grid is suitable for coated plate.And due to the resistivity of graphite extremely low, the resistance of grid also can reduce.
Embodiment
Below by specific embodiment, technical scheme of the present invention is described in further detail.Should be appreciated that enforcement of the present invention is not limited to the following examples, any pro forma accommodation make the present invention and/or change all will fall into scope.
In the present invention, if not refer in particular to, all parts, percentage are unit of weight, and the equipment adopted and raw material etc. all can be buied from market or this area is conventional.Method in following embodiment, if no special instructions, is the conventional method of this area.
The lead adopted in the present invention is 1# electrolytic lead, containing inevitable impurity in alloy.
Brinell hardness test, with reference to national standard (GB231-84), applies test force pressing in sample surface to the sintered carbide ball of certain diameter, and after the regulation retention time, removal test force, measures the impression diameter of specimen surface.Digital display Michael Burawoy hardometer HBRVS-187.5, Selection experiment power F:62.5kg, bulb diameter D:5mm, F/D
2: 2.5.
Tensile strength is tested: the method sample adopting casting, according to the tensile strength of GB 228-87 " metal tensile test method " test sample, and electronic universal tester CMT6503.
Embodiment 1-5:
The preparation of negative grid alloy:
A, prepare graphite lead alloy, make the mass fraction of graphite in graphite lead alloy be 2% ~ 3%;
B, according to negative grid alloy composition proportion, the lead of remainder is joined in lead melting furnace, be heated to 550 ~ 600 DEG C, then a is walked the graphite lead alloy obtained to join in lead melting furnace and stir, again mock silver is joined in lead melting furnace, fully melt and stir, obtaining negative grid alloy.
Sampling direct-reading spectrometer beta alloy composition after alloy preparation, main component should meet tin 0.1% ~ 0.4%, aluminium 0.02% ~ 0.04%, graphite 0.2% ~ 0.4%, and surplus is plumbous.After testing, the lead-acid battery negative plate grid alloy composition that each embodiment obtains is in table 1, and surplus is plumbous (comprising inevitable impurity).
Table 1
Grid is cast: lead melting furnace temperature setting 510 ~ 525 DEG C, plumbous spoon temperature 520 ~ 540 DEG C, and cover half temperature is set as 140 DEG C ~ 180 DEG C, and dynamic model temperature is set as 140 DEG C ~ 180 DEG C, cast panel speed appropriateness.Carry out examination casting after jet mould, meet formal cast panel after technological requirement until grid presentation quality, thickness and weight etc.The grid of casting shelves 2 days naturally, shelving in ag(e)ing process and will carrying out dust and moisture, checks grid quality and hardness after timeliness, carries out coated plate after qualified, the same normal process of all the other battery production operations.
Conventional PbCaAl and slicker solder aluminium graphite alloy embodiment 1,2,3 of the present invention do Brinell hardness and tensile strength comparing result in table 2 and table 3.
Table 2 negative grid alloy Brinell hardness test result (unit: HB (Kg/ (mm)
2)
| Different aging time | 1d | 2d | 3d | 5d | 7d | 10d |
| Conventional PbCaAl | 9.10 | 9.73 | 10.0 | 10.9 |
| Embodiment 1 | 9.06 | 10.1 | 11.0 | |||
| Embodiment 2 | 8.99 | 9.85 | 10.9 | |||
| Embodiment 3 | 9.17 | 10.2 | 11.1 |
* conventional plumbous calcium tin aluminium (PbCaSnAl) alloying component: calcium 0.11%-0.14%, aluminium 0.02%-0.04%, surplus is plumbous;
Slicker solder aluminium graphite of the present invention bears grid alloy, and the Brinell hardness of natrual ageing after 2 days is suitable with the conventional Pb-Ca-Al alloy natrual ageing Brinell hardness of 7 days.The aging time that grid hardness reaches applicable full-filling obviously shortens.
Table 3 tensile strength test result
Slicker solder aluminium graphite of the present invention is born grid alloy and is contrasted in identical natrual ageing condition and the situation of time with conventional Pb-Ca-Al grid alloy, and tensile strength is obviously better than conventional Pb-Ca-Al grid alloy.
Increase graphite in negative grid alloy, the mechanical strength of grid can be changed.The grid that Pb-Ca-Al alloy makes can As time goes within the timeliness phase, and lattice increases gradually, and the timeliness phase is generally 4 ~ 7 days, and the timeliness phase is long, and this just means that the production cycle is long, and fund pressurization is serious.And the present invention adds graphite in negative grid, the mechanical strength of grid strengthens, and the timeliness phase is short, and the intensity of grid is suitable for coated plate.And due to the resistivity of graphite extremely low, the resistance of grid also can reduce.
Above-described embodiment is one of the present invention preferably scheme, not does any pro forma restriction to the present invention, also has other variant and remodeling under the prerequisite not exceeding the technical scheme described in claim.
Claims (5)
1. a lead-acid battery negative plate grid alloy, the main component of grid alloy is plumbous, and it is characterized in that this alloy comprises following in the component of mass fraction: tin 0.1% ~ 0.4%, aluminium 0.02% ~ 0.04%, graphite 0.2% ~ 0.4%, surplus is plumbous.
2. lead-acid battery negative plate grid alloy according to claim 1, is characterized in that: this alloy comprises following in the component of mass fraction: tin 0.2%, aluminium 0.04%, graphite 0.28%, and surplus is plumbous.
3. lead-acid battery negative plate grid alloy according to claim 1, is characterized in that: this alloy comprises following in the component of mass fraction: tin 0.11%, aluminium 0.021%, graphite 0.202%, and surplus is plumbous.
4. lead-acid battery negative plate grid alloy according to claim 1, is characterized in that: this alloy comprises following in the component of mass fraction: tin 0.4%, aluminium 0.027%, graphite 0.398%, and surplus is plumbous.
5. a preparation method for lead-acid battery negative plate grid alloy according to claim 1, is characterized in that the method is specially:
A, prepare graphite lead alloy, make the mass fraction of graphite in graphite lead alloy be 2% ~ 3%;
B, according to negative grid alloy composition proportion, the lead of remainder is joined in lead melting furnace, be heated to 550 ~ 600 DEG C, then a is walked the graphite lead alloy obtained to join in lead melting furnace and stir, again mock silver is joined in lead melting furnace, fully melt and stir, obtaining negative grid alloy.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410527739.8A CN104377364A (en) | 2014-10-09 | 2014-10-09 | Lead acid battery negative grid alloy and preparation method thereof |
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|---|---|---|---|
| CN201410527739.8A CN104377364A (en) | 2014-10-09 | 2014-10-09 | Lead acid battery negative grid alloy and preparation method thereof |
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| CN104377364A true CN104377364A (en) | 2015-02-25 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101719565A (en) * | 2009-12-08 | 2010-06-02 | 超威电源有限公司 | Three-dimensional ambipolar high-power lead storage battery |
| CN102569818A (en) * | 2010-12-15 | 2012-07-11 | 苏州大学 | Positive plate for high-intensity grid of lead acid storage battery |
| CN102945948A (en) * | 2012-11-07 | 2013-02-27 | 陈欢平 | Novel rare earth lead-acid power cell |
| CN103943865A (en) * | 2014-05-07 | 2014-07-23 | 厦门华天高科电池科技有限公司 | Graphene-lead alloy as well as preparation method and application thereof |
-
2014
- 2014-10-09 CN CN201410527739.8A patent/CN104377364A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101719565A (en) * | 2009-12-08 | 2010-06-02 | 超威电源有限公司 | Three-dimensional ambipolar high-power lead storage battery |
| CN102569818A (en) * | 2010-12-15 | 2012-07-11 | 苏州大学 | Positive plate for high-intensity grid of lead acid storage battery |
| CN102945948A (en) * | 2012-11-07 | 2013-02-27 | 陈欢平 | Novel rare earth lead-acid power cell |
| CN103943865A (en) * | 2014-05-07 | 2014-07-23 | 厦门华天高科电池科技有限公司 | Graphene-lead alloy as well as preparation method and application thereof |
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