CN204596876U - A kind of grid of winding type lead-acid battery - Google Patents
A kind of grid of winding type lead-acid battery Download PDFInfo
- Publication number
- CN204596876U CN204596876U CN201520378019.XU CN201520378019U CN204596876U CN 204596876 U CN204596876 U CN 204596876U CN 201520378019 U CN201520378019 U CN 201520378019U CN 204596876 U CN204596876 U CN 204596876U
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- China
- Prior art keywords
- grid
- lead
- battery
- foil
- lead foil
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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
Abstract
The utility model discloses a kind of grid of winding type lead-acid battery, comprise grid, grid is lead foil, lead foil thickness is 0.01 ~ 0.3mm, lead foil has rhombus or regular hexagon hole, the length of side of rhombus or orthohexagonal inscribed circle diameter are 0.01 ~ 9mm, and the number of aperture on every square centimeter of lead foil is 10 ~ 2000, and grid surface has lead plaster layer.Grid of the present utility model has hole, make can form good combination interface between grid and lead plaster, thus the internal resistance reducing battery improves the discharge performance of battery, be particularly useful for manufacturing the battery needing superelevation discharging current, solve lead plaster and hold caducous problem.
Description
Technical field
The utility model belongs to battery technology field, is specifically related to a kind of grid of winding type lead-acid battery.
Background technology
Winding type lead-acid battery has the feature of overlarge area pole plate, ultralow internal resistance, there is the ability to work under superpower high-rate discharge capacity, good partial state of charge, excellent cryogenic property, non-maintaining function can be realized to greatest extent, shock resistance is strong, storage period is long, is widely used in automobile, motorcycle starting, generator starting, hybrid vehicle, the fields such as energy-storage system.
Under same volume, use ultra-thin lead foil can increase the area of pole plate further as the grid of winding type lead-acid battery, reduce the internal resistance of cell, thus increase battery high-rate discharge capacity and cryogenic property, plumbous use can be reduced simultaneously, alleviate battery weight, improve battery energy density.
In winding type lead-acid battery, paste active material is coated on the grid of lead or lead alloy, grid is by the contact with active material, when discharging, the electronics that cell electrochemical reaction produces is converged and exports to external circuit, charge time by the electrical conductivity of external circuit to active material, it can thus be appreciated that the contact-making surface of grid and active material is the important factor in order of winding type lead-acid battery charge-discharge performance.
At present using lead foil to make in the technique of winding type lead-acid battery electrode, normally paste active material is directly being coated on lead foil that lead or lead alloy make, then coiling and molding, then directly solidify drying, with this, active material is fixed on lead foil.But but there are two drawbacks in such technique:
1. lead foil is very smooth, and after drying particularly under this structure of winding, active material is easy to be separated from lead foil, causes the increase of the internal resistance of cell, and this can make a big impact to battery high-multiplying power discharge;
2. lead foil is very thin, and the active material being therefore coated in surface is also very thin, under this structure of winding, easily forms a large amount of cracks, connect insecure between active material.In conjunction with the factor 1. mentioned, after repeatedly discharge and recharge, the easy expansion drop of active material, increases the internal resistance of battery further, greatly affects the useful life of battery.
Therefore, the adhesion problem solving active material and lead foil is the key technology promoting takeup type lead foil battery performance.
Utility model content
The utility model object is to provide a kind of grid of winding type lead-acid battery, solves existing grid and active material adhesion is poor, holds caducous problem.
The technical solution of the utility model is: a kind of grid of winding type lead-acid battery, comprise grid, grid is lead foil, lead foil thickness is 0.01 ~ 0.3mm, lead foil has rhombus or regular hexagon hole, the length of side of rhombus or orthohexagonal inscribed circle diameter are 0.01 ~ 9mm, and the number of aperture on every square centimeter of lead foil is 10 ~ 2000, and grid surface has lead plaster layer.
The utility model compared with prior art tool has the following advantages:
Grid of the present utility model has hole, make can form good combination interface between grid and lead plaster, thus the internal resistance reducing battery improves the discharge performance of battery, be particularly useful for manufacturing the battery needing superelevation discharging current, solve lead plaster and hold caducous problem.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment 1;
Fig. 2 is the structural representation of embodiment 2.
Embodiment
Embodiment 1
As shown in Figure 1, a kind of grid of winding type lead-acid battery, comprises grid, and grid is lead foil, and lead foil thickness is 0.3mm, and lead foil has diamond hole, and the length of side of rhombus is 0.5mm, and every square centimeter of upper perforate 220, grid surface has lead plaster layer.
Embodiment 2
As shown in Figure 2, a kind of grid of winding type lead-acid battery, comprises grid, grid is lead foil, and lead foil thickness is 0.01mm, lead foil has regular hexagon hole, regular hexagon inscribe diameter of a circle is 4mm, and every square centimeter of upper perforate 14, grid surface has lead plaster layer.
Preparation method is as follows:
1. lead alloy is prepared: refined lead alloy in advance by standard preparation, identical with existing method;
2. smelting lead alloy: put the lead alloy refined in advance into market pot, is warmed to 350 ~ 500 DEG C, all melts to the lead alloy refined in advance, identical with existing method;
3. cast stereotype: pumped into by the lead alloy of thawing in the continuous stereotype model of band extruder, cast the width of requirement and the stereotype of thickness, identical with existing method;
4. lead foil is suppressed: above-mentioned stereotype is formed the lead foil that thickness is 0.01 ~ 0.3mm after roller mill rolls repeatedly;
5. punching: after above-mentioned lead foil is placed 24 hours, forms the grid skeleton that thickness is 0.01 ~ 0.3mm after two complete up and down continuous punchings of circular die, then through grid skeleton being flattened by two complete up and down circular pressing dies; This step is innovative step of the present utility model, and grid completes;
6. pole plate fills: above-mentioned grid skeleton is carried out lead plaster and fills, pole plate completes.
The above embodiment only have expressed the embodiment of the application, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the application's protection range.It should be pointed out that for the person of ordinary skill of the art, under the prerequisite not departing from technical scheme design, can also make some distortion and improvement, these all belong to the protection range of the application.
Claims (1)
1. the grid of a winding type lead-acid battery, comprise grid, it is characterized in that, grid is lead foil, lead foil thickness is 0.01 ~ 0.3mm, lead foil has rhombus or regular hexagon hole, and the length of side of rhombus or orthohexagonal inscribed circle diameter are 0.01 ~ 9mm, number of aperture on every square centimeter of lead foil is 10 ~ 2000, and grid surface has lead plaster layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520378019.XU CN204596876U (en) | 2015-06-04 | 2015-06-04 | A kind of grid of winding type lead-acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520378019.XU CN204596876U (en) | 2015-06-04 | 2015-06-04 | A kind of grid of winding type lead-acid battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204596876U true CN204596876U (en) | 2015-08-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520378019.XU Expired - Fee Related CN204596876U (en) | 2015-06-04 | 2015-06-04 | A kind of grid of winding type lead-acid battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204596876U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106388213A (en) * | 2016-10-08 | 2017-02-15 | 揭阳市永日科技有限公司 | Rechargeable electric hair drier |
-
2015
- 2015-06-04 CN CN201520378019.XU patent/CN204596876U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106388213A (en) * | 2016-10-08 | 2017-02-15 | 揭阳市永日科技有限公司 | Rechargeable electric hair drier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20180604 |