CN103746120A - Storage battery grid - Google Patents
Storage battery grid Download PDFInfo
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- CN103746120A CN103746120A CN201310730624.4A CN201310730624A CN103746120A CN 103746120 A CN103746120 A CN 103746120A CN 201310730624 A CN201310730624 A CN 201310730624A CN 103746120 A CN103746120 A CN 103746120A
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- grid
- battery
- storage battery
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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
- H01M4/661—Metal or alloys, e.g. alloy coatings
- H01M4/662—Alloys
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- 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
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- Engineering & Computer Science (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Cell Electrode Carriers And Collectors (AREA)
Abstract
The invention discloses a storage battery grid which comprises a grid and a frame arranged along the circumference of the grid, wherein the grid is composed of a metal alloy which comprises the following components in percentage by weight: 86-90 percent of aluminum, 3-7 percent of magnesium, and 5-9 percent of tin, and the grid surface is coated with silver, the grid of the storage battery grid is made from an aluminum-magnesium-tin alloy, and has good electrical conductivity, corrosion resistance, strength, good electrical contact with the anode active material, the problem of 'invalid interface structure' is improved effectively; and because that the aluminum-magnesium-tin alloy material is lighter, the active substances are more in a pole plate of same weight, thus the deep discharge performance is improved; and by adopting the plating silver process for the grid, the deep discharge performance of a battery is improved, the problem of 'invalid interface structure' is further improved. By virtue of improving the problem of 'invalid interface structure', the service life of the storage battery is prolonged effectively.
Description
Technical field
The present invention relates to storage battery field, be specifically related to a kind of battery grid.
Background technology
The development of science and technology, human life quality's raising, petroleum resources face a crisis, ball ecological environment goes from bad to worse, and have formed the science and technology in novel secondary battery and associated materials field and the dual social background of industry fast development.The active demand in market, arises at the historic moment novel secondary battery.Wherein storage battery have that voltage is steady, safe and reliable, cheap, applied widely, abundant raw materials and reclaiming utilance advantages of higher, be output maximum in all kinds of batteries, a kind of battery that purposes is the widest in the world.
Storage battery is a kind of device that chemical energy is directly changed into electric energy, is by the battery of rechargeable design, by reversible chemical reaction, is realized and being recharged, and typically refers to lead acid accumulator, and it is the one in battery, belongs to secondary cell.Its operation principle: utilizing outside electric energy to make inner active material regeneration during charging, is chemical energy electrical power storage, again chemical energy is converted to electric energy output in the time of need to discharging.
In lead accumulator technical field, the interface of anode plate grid and active material is most important, and direct relation life-span and every electrical property of battery;
The interface of grid and positive active material is oxidized by grid alloy that the corrosion layer that forms forms, when grid alloy is Pb-Ca alloy, will in 20-50 circulations, occur PCL-1 phenomenon, and D.Pavlov calls this phenomenon " inefficient frontier structure "; A.F.Hollenkamp etc. have studied the variation of active material contact resistance Rc in pole plate discharge process, Rc=50m Ω while starting to discharge, when being increased to 200 Ω, interface limitations capacity, confirmation Pb and Pb-Ca alloy cell life-span are determined by interfacial conductive, and Pb-Sb and Pb-As pole plate life-span are more determined by active material; D.Pavlov points out, this phenomenon is because the battery capacity that interface impedance limit capacity causes declines.For many years, lead acid accumulator field is being found a kind of novel grid material always and is being replaced Pb-Ca alloy, solves " inefficient frontier structure " problem.
Summary of the invention
For the problems referred to above, the invention provides a kind of battery grid.Can effectively improve " inefficient frontier structure " problem.
The technical scheme that the present invention takes is as follows:
A kind of battery grid, comprises grid and along grid week along the frame arranging, described grid is to consist of metal alloy, by weight percentage, the consisting of of described metal alloy, aluminium: 86%～90%, magnesium: 3～7%, tin: 5～9%.
Magnesium elements chemical property is active, has certain ductility and the dissipation of heat, and tin, aluminium element can increase mobility, conductivity, corrosion resistance and the intensity of alloy.
As preferably, described grid adopts gravity casting method to make.Gravitational casting refers to that molten metal injects the technique of casting mold under terrestrial gravitation effect, also claims casting.Gravity casting method technique is simple, and cost is lower.
As preferably, described grid surface is coated with silver.Electroplate can increase the conductivity of grid, effectively improves " inefficient frontier structure " problem.
As preferably, described grid is diamond structure.It is more even that such design can make that electric current distributes on grid, can effectively reduce the resistance of grid.
As preferably, described frame is to consist of terne metal, by weight percentage, the consisting of of described terne metal, lead: 98.5～99.5%, tin: 0.5～1.5%.
As further preferably, the consisting of of described terne metal: lead: 99%, tin: 1%.Tin element can increase mobility, conductivity, corrosion resistance and the intensity of alloy.
As preferably, described grid coordinates with described frame is embedded.Embedded cooperation can effectively guarantee evenness, the uniformity of frame, can increase the current conductivity energy of grid.
As preferably, a side of the grid dorsad on a limit of described frame is provided with a lug.
As preferably, a side of the grid dorsad on a limit of described frame is provided with the utmost point eye for lug is installed.
The invention has the beneficial effects as follows: the grid of battery grid provided by the invention adopts magnalium ashbury metal to make, there is good conductivity, corrosion resistance and intensity, energy and positive active material have good electrically contacting, and have effectively improved " inefficient frontier structure " problem; And magnalium tin alloy material is low weight, same pole plate weight, active material is higher, has improved deep discharge performance; Grid is adopted to silver plating process, improved the deep discharge performance of battery, further improve the problem of " inefficient frontier structure ".By improving the problem of " inefficient frontier structure ", effectively raise the useful life of storage battery.
Accompanying drawing explanation
Fig. 1 is the front view of battery grid of the present invention;
Fig. 2 is the embedded casting schematic diagram of battery grid of the present invention.
In figure, each Reference numeral is:
1. frame, 2. lug, 3. grid, 4. frame dynamic model, 5. frame cover half.
Embodiment
As shown in Figure 1, a kind of battery grid of the present embodiment, comprises grid 3 and along grid week along the frame 1 arranging, grid is to consist of metal alloy, by weight percentage, the consisting of of metal alloy, aluminium: 88%, magnesium: 5%, tin: 7%.Frame 1 is to consist of terne metal, by weight percentage, the consisting of of terne metal, lead: 99%, tin: 1%.Magnesium elements chemical property is active, has certain ductility and the dissipation of heat, and tin, aluminium element can increase mobility, conductivity, corrosion resistance and the intensity of alloy.Grid adopts gravity casting method to make, and natrual ageing cut and forms after 72 hour, and the grid table after cutting carries out silver-plated.Gravitational casting refers to that molten metal injects the technique of casting mold under terrestrial gravitation effect, also claims casting, and gravity casting method technique is simple, and cost is lower; Grid surface is coated with silver, and this can increase the conductivity of grid, effectively improves " inefficient frontier structure " problem.
Grid is diamond structure, and grid coordinates with frame is embedded, one side of the grid dorsad on a limit of frame is provided with a lug 2, can be also that a side of the grid dorsad on a limit of frame is provided with the utmost point eye for lug is installed, processing time can grid and lug process separately.As shown in Figure 2, frame forms by frame cover half 5 and 4 cast of frame dynamic model.Before cast, grid is placed between fixed half and moving half, then cast, is embedded in frame grid.It is more even that diamond structure can make that electric current distributes on grid, can effectively reduce the resistance of grid; Embedded cooperation can effectively guarantee evenness, the uniformity of frame, can increase the current conductivity energy of grid.Grid coordinates with frame is embedded.
The grid of conventional grid, by weight percentage, calcium: 0.085%, tin: 0.025%, aluminium: 1.2%, all the other are plumbous.The frame of conventional grid is identical with the present embodiment.Adopting the positive plate small pieces weight of conventional grid is 9.5g, and adopts the positive plate small pieces of the present embodiment grid only to need 7g.Under same volume, grid weight ratio of the present invention tradition grid is light, and the weight (pole plate is equal in weight in situation) that this has improved active material has promoted the deep discharge performance of battery.
In order further to prove effect of the present invention, to doing cycle life test (according to GB/T221992008 sealing lead acid storage battery for electric vehicle) by the storage battery that adopts the storage battery of the present embodiment battery grid and adopt conventional grid to produce, batteries cycle life test comparison data are in Table 1.Wherein, capacity is expressed as the time of electric discharge in cycle life test, because be multiplied by the electric current of electric discharge discharge time, it is exactly the capacity of battery, this discharging current is to lead to determine according to the 2h of rated capacity, so can represent the capacity of battery discharge time, in form, bodge is minute (min).The deviation of single battery peak and minimum when pressure reduction refers to batteries discharge off.
Table 1
By table 1, can find out, at first about 100 times, adopt capacity and the pressure reduction of the storage battery of conventional grid and the storage battery of employing the present embodiment grid basically identical, but what adopt conventional grids for 100 times holds that capacity reduces rapidly, pressure reduction increases later, and although the storage battery capacity that adopts grid of the present invention also diminishes, pressure reduction also increases, but the former is much smaller for the Amplitude Ratio of volume lowering, and pressure reduction also changes less.This explanation adopts the grid of the present embodiment can effectively improve " inefficient frontier structure " problem, thus the useful life of effectively improving storage battery.
A kind of battery grid of the present embodiment, its structure is identical with embodiment 1, but it is different from embodiment 1 to prepare the composition of metal alloy of grid, by weight percentage, and the consisting of of metal alloy in the present embodiment, aluminium: 90%, magnesium: 5%, tin: 5%.
The composition of terne metal of preparing frame is different from embodiment 1, by weight percentage, the consisting of of terne metal in the present embodiment, lead: 98.5%, tin: 1.5%.
The grid of conventional grid, by weight percentage, calcium: 0.085%, tin: 0.025%, aluminium: 1.2%, all the other are plumbous.The frame of conventional grid is identical with the present embodiment.Adopting the positive plate small pieces weight of conventional grid is 9.5g, and adopts the positive plate small pieces of the present embodiment grid only to need 6.9g.
To doing cycle life test (according to GB/T221992008 sealing lead acid storage battery for electric vehicle) by the storage battery that adopts the storage battery of the present embodiment battery grid and adopt conventional grid to produce, batteries cycle life test comparison data are in Table 2.
Table 2
A kind of battery grid of the present embodiment, its structure is identical with embodiment 1, but it is different from embodiment 1 to prepare the composition of metal alloy of grid, by weight percentage, and the consisting of of metal alloy in the present embodiment, aluminium: 86%, magnesium: 7%, tin: 7%.
The composition of terne metal of preparing frame is different from embodiment 1, by weight percentage, the consisting of of terne metal in the present embodiment, lead: 99.5%, tin: 0.5%.
The grid of conventional grid, by weight percentage, calcium: 0.085%, tin: 0.025%, aluminium: 1.2%, all the other are plumbous.The frame of conventional grid is identical with the present embodiment.Adopting the positive plate small pieces weight of conventional grid is 9.5g, and adopts the positive plate small pieces of the present embodiment grid only to need 7.0g.
To doing cycle life test (according to GB/T221992008 sealing lead acid storage battery for electric vehicle) by the storage battery that adopts the storage battery of the present embodiment battery grid and adopt conventional grid to produce, batteries cycle life test comparison data are in Table 3.
Table 3
A kind of battery grid of the present embodiment, its structure is identical with embodiment 1, but it is different from embodiment 1 to prepare the composition of metal alloy of grid, by weight percentage, and the consisting of of metal alloy in the present embodiment, aluminium: 88%, magnesium: 3%, tin: 9%.
The composition of terne metal of preparing frame is different from embodiment 1, by weight percentage, the consisting of of terne metal in the present embodiment, lead: 99%, tin: 1%.
The grid of conventional grid, by weight percentage, calcium: 0.085%, tin: 0.025%, aluminium: 1.2%, all the other are plumbous.The frame of conventional grid is identical with the present embodiment.Adopting the positive plate small pieces weight of conventional grid is 9.5g, and adopts the positive plate small pieces of the present embodiment grid only to need 7.1g.
To doing cycle life test (according to GB/T221992008 sealing lead acid storage battery for electric vehicle) by the storage battery that adopts the storage battery of the present embodiment battery grid and adopt conventional grid to produce, batteries cycle life test comparison data are in Table 4.
Table 4
Claims (8)
1. a battery grid, comprises grid and along grid week along the frame arranging, it is characterized in that, described grid is to consist of metal alloy, by weight percentage, the consisting of of described metal alloy, aluminium: 86%～90%, magnesium: 3～7%, tin 5～9%.
2. battery grid according to claim 1, is characterized in that, described grid adopts gravity casting method to make.
3. battery grid according to claim 1, is characterized in that, described grid surface is coated with silver.
4. according to the battery grid described in claim 2 or 3, it is characterized in that, described grid is diamond structure.
5. battery grid according to claim 4, is characterized in that, described frame is to consist of terne metal, by weight percentage, the consisting of of described terne metal: lead: 98.5～99.5%, tin: 0.5～1.5%.
6. battery grid according to claim 1, is characterized in that, described grid coordinates with described frame is embedded.
7. battery grid according to claim 6, is characterized in that, a side of the grid dorsad on a limit of described frame is provided with a lug.
8. battery grid according to claim 6, is characterized in that, a side of the grid dorsad on a limit of described frame is provided with the utmost point eye for lug is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310730624.4A CN103746120B (en) | 2013-12-26 | 2013-12-26 | A kind of battery grid |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310730624.4A CN103746120B (en) | 2013-12-26 | 2013-12-26 | A kind of battery grid |
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| Publication Number | Publication Date |
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| CN103746120A true CN103746120A (en) | 2014-04-23 |
| CN103746120B CN103746120B (en) | 2016-03-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109930092A (en) * | 2017-12-17 | 2019-06-25 | 宜兴安纳西智能机械设备有限公司 | A kind of battery conveying device sprocket wheel spacer material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2750483Y (en) * | 2004-11-17 | 2006-01-04 | 钟发平 | Composite sheet grating for positive electrode of high-energy lead-acid accumulator |
| CN102005574A (en) * | 2010-10-29 | 2011-04-06 | 济南兄弟金属科技有限公司 | Light plate grid for lead-acid storage battery and preparation method thereof |
| CN102157719A (en) * | 2011-03-18 | 2011-08-17 | 南京双登科技发展研究院有限公司 | Super battery plate |
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2013
- 2013-12-26 CN CN201310730624.4A patent/CN103746120B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2750483Y (en) * | 2004-11-17 | 2006-01-04 | 钟发平 | Composite sheet grating for positive electrode of high-energy lead-acid accumulator |
| CN102005574A (en) * | 2010-10-29 | 2011-04-06 | 济南兄弟金属科技有限公司 | Light plate grid for lead-acid storage battery and preparation method thereof |
| CN102157719A (en) * | 2011-03-18 | 2011-08-17 | 南京双登科技发展研究院有限公司 | Super battery plate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109930092A (en) * | 2017-12-17 | 2019-06-25 | 宜兴安纳西智能机械设备有限公司 | A kind of battery conveying device sprocket wheel spacer material |
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| CN103746120B (en) | 2016-03-09 |
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Address after: 313100 Coal Mountain Industrial Park, Changxing County, Huzhou City, Zhejiang Province Patentee after: Tianneng Battery Group Co., Ltd. Address before: 313100 Coal Mountain Industrial Park, Changxing County, Huzhou City, Zhejiang Province Patentee before: Tianneng Battery Group Co., Ltd. |