CN111584830A - Preparation method of polar plate for lead storage battery - Google Patents
Preparation method of polar plate for lead storage battery Download PDFInfo
- Publication number
- CN111584830A CN111584830A CN202010306807.3A CN202010306807A CN111584830A CN 111584830 A CN111584830 A CN 111584830A CN 202010306807 A CN202010306807 A CN 202010306807A CN 111584830 A CN111584830 A CN 111584830A
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- grid
- injection molding
- composite lead
- lug
- mould
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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
- H01M4/14—Electrodes for lead-acid accumulators
- H01M4/16—Processes of manufacture
- H01M4/20—Processes of manufacture of pasted electrodes
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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
- H01M4/14—Electrodes for lead-acid accumulators
- H01M4/16—Processes of manufacture
- H01M4/22—Forming of electrodes
-
- 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
- H01M4/70—Carriers or collectors characterised by shape or form
- H01M4/72—Grids
- H01M4/73—Grids for lead-acid accumulators, e.g. frame plates
-
- 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
- H01M4/82—Multi-step processes for manufacturing carriers for lead-acid accumulators
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Cell Electrode Carriers And Collectors (AREA)
Abstract
A preparation method of a polar plate for a lead storage battery comprises eight steps: preparing a composite lead wire, an ABS raw material, an injection molding machine and a grid manufacturing mold; the grid manufacturing mould comprises a mould body and a mould cover; secondly, placing the composite lead wire on the die body, and then covering the die body with a die cover; thirdly, placing the grid manufacturing mould with the composite lead wire in an injection molding machine for injection molding; fourthly, taking down the grid manufacturing mould from the injection molding machine for cooling operation; fifthly, taking off the rudiment grid assembly from the grid manufacturing die and cutting off the composite lead wire end; sixthly, casting a tab plate, cooling, and punching a tab on the rudiment grid set; seventhly, filling lead paste into the obtained rudiment grid set to prepare a plate set; eighthly, the polar plate set is divided to obtain a plurality of polar plates. The beneficial effects are that: each polar plate is protected by a plastic frame, and short circuit failure caused by expansion of active substances in the middle and later periods of circulation is not easy to occur during use.
Description
Technical Field
The invention relates to the field of lead storage batteries, in particular to the invention technology for applying an injection molding process to the manufacture of a lead storage battery polar plate.
Background
The lead accumulator is widely used as electric energy source in the fields of power vehicles, energy storage power supply and the like because of its advantages of stability, reliability, no memory effect, low price, capacity of being made into single large-capacity battery and the like. In the application field of power supplies of uninterruptible power supplies, electric bicycles and diesel submarines, the yield and the electric storage capacity of the power supplies are still the first place to bear the priority of chemical power supplies. The grid of the traditional lead storage battery has three preparation methods: firstly, gravity casting is carried out, and the method has wide application range, low efficiency and high pollution; secondly, punching a grid by a lead belt, wherein the method comprises the steps of prefabricating the lead belt and then punching, and has the advantages of high efficiency, 70-80% of blanking generated during punching and high energy consumption; and thirdly, continuous casting and rolling, the method has the advantages of high efficiency and low energy consumption, but the grid is not corrosion-resistant. The woven lead net grid is an important grid of a lead storage battery, and is characterized in that glass fiber composite lead wires are woven to form a net, and then lead wires with different wire diameters are manufactured according to actual requirements, so that the lead net with any thickness can be woven as the battery grid in theory, and the obtained battery grid has the advantages of light weight, corrosion resistance and no lead dust pollution. For example, patent CN102751507A discloses that there are two different manufacturing methods for manufacturing lead mesh grid, namely weaving by a shuttleless loom and weaving by a shuttle loom, but the biggest disadvantage of the lead mesh is that the manufactured grid has no frame, and the active substance is easy to expand in the middle and later periods of the cycle, which causes short circuit failure.
Disclosure of Invention
The invention mainly aims to provide a preparation method of a composite polar plate for a lead storage battery, which has good corrosion resistance of a grid, high specific energy, and strong creep property and can inhibit bulging.
The technical scheme adopted by the invention is as follows: a preparation method of a polar plate for a lead storage battery comprises the following steps:
preparing manufacturing tools and materials including composite lead wires, ABS raw materials, an injection molding machine and a grid manufacturing mold; the grid manufacturing mould comprises a mould body and a mould cover; the die body is provided with two grid injection molding areas, each grid injection molding area is composed of two to three blank grid injection molding areas which are sequentially arranged from front to back and are connected with each other through a connecting wall, and each blank grid injection molding area comprises an injection molding main area and an electrode lug injection molding area; the injection molding areas of the corresponding rudiment grids in the two different groups are bilaterally symmetrical, and the two lug injection molding areas with the same front and back positions on the left and right sides are overlapped; each rudiment grid injection molding area is provided with a plurality of composite lead wire support rods moving forwards and backwards, and the composite lead wire support rods and the left and right frame strips of the mold body are respectively provided with a plurality of composite lead wire clamping grooves matched with the composite lead wires; the left and right frame strips of the mould body are also provided with casting concave cavities for generating hangers;
secondly, straightening and clamping a plurality of composite lead wires into corresponding composite lead wire clamping grooves, wherein the composite lead wires are parallel to each other; covering the mould cover on the mould body;
thirdly, integrally placing the grid manufacturing mould with the installed composite lead wire into an injection molding machine; then the injection molding machine injects the melted ABS raw material into a grid manufacturing mold;
after the injection molding operation is finished, taking down the grid manufacturing mold from the injection molding machine to perform cooling operation so as to obtain a prototype grid set;
fifthly, taking down the prototype grid set from the grid manufacturing mould, checking the quality of the prototype grid set, and trimming off useless composite lead wire ends on the qualified prototype grid set;
sixthly, casting a lug plate in the lug injection molding area by using a gravity casting method; cooling after casting, and performing corresponding punch forming operation on the lug plate blocks after cooling so as to punch a lug for each prototype grid; one end of the lug of the left and right adjacent prototype grids is connected with the prototype grid to which the lug belongs, and the other end of the lug of the other prototype grid is connected with the lug of the other prototype grid;
seventhly, filling lead paste into the blank grid set obtained in the last step to obtain a plate set;
and eighthly, cutting off hanging lugs and connecting walls of the polar plate set, and simultaneously separating the left grid and the right grid which are adjacent to each other, and finally obtaining a plurality of grids.
Preferably, the hangers are provided at the upper ends of the outer sides of the die bodies of the two blank grid manufacturing locations in the uppermost row or at the lower ends of the outer sides of the die bodies of the two blank grid manufacturing locations in the lowermost row.
Preferably, the number of the composite lead wires on each grid is five to eight.
The invention is different from the prior grid in that each grid is protected by a plastic frame, and short circuit failure caused by expansion of active substances in the middle and later periods of circulation is not easy to occur when the grid is used.
Drawings
FIG. 1: the preparation steps of the polar plate for the lead storage battery of the ultra-light battery are shown in a schematic diagram;
FIG. 2: a schematic structural diagram of the composite lead wire;
FIG. 3: the structural schematic diagram of the die body in the grid manufacturing die;
FIG. 4: a structural schematic diagram of a qualified rudiment grid set after cutting off useless ends of the composite lead wires;
FIG. 5: a schematic structural diagram of the rudiment grid after the pole lugs are punched;
FIG. 6: the structure schematic diagram of the pole plate for the finished lead storage battery;
in the figure: the composite lead wire comprises a composite lead wire 1, a core wire 1.1, cladding alloy lead 1.2, a grid manufacturing mold 2, a left grid injection molding area 2.1, a right grid injection molding area 2.2, a connecting wall 2.3, a composite lead wire support rod 2.4, a side frame strip 2.5, a composite lead wire clamping groove 2.6 and a casting cavity 2.7.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
As shown in the figure, the preparation method of the polar plate for the lead battery comprises the following steps:
firstly, preparing manufacturing tools and materials including a composite lead wire 1, an ABS raw material (not shown in the figure), an injection molding machine (not shown in the figure) and a grid manufacturing mold 2. The composite lead wire 1 is a known product and comprises a core wire 1.1 and cladding alloy lead 1.2 cladding the core wire. The grid manufacturing mold 2 comprises a mold body and a mold cover. The injection molding die is characterized in that a left grid injection molding area 2.1 and a right grid injection molding area 2.2 are arranged on the die body, the left grid injection molding area 2.1 and the right grid injection molding area 2.2 are formed by two to three blank grid injection molding areas with the same number, the two to three blank grid injection molding areas are sequentially arranged from front to back and are connected with each other through a plurality of connecting walls 2.3 in the middle, and each blank grid injection molding area comprises an injection molding main area and a lug injection molding area. In the embodiment, two prototype grid injection molding areas are arranged in the left grid injection molding area 2.1 and the right grid injection molding area 2.2. In addition, the injection molding areas of the two rudiment grids in the left grid injection molding area 2.1 and the injection molding areas of the two rudiment grids in the right grid injection molding area 2.2 are bilaterally symmetrical, and the injection molding areas of the lugs of the rudiment grids are overlapped. Each rudiment grid injection molding area is provided with a plurality of composite lead wire support rods 2.4 moving back and forth, five to eight composite lead wire clamping grooves 2.6 matched with the composite lead wires are arranged on the composite lead wire support rods 2.4 and the left and right frame strips 2.5 of the mold body, the embodiment is preferably six, namely, each rudiment grid injection molding area is provided with six composite lead wires. In addition, two rudiment grid injection molding areas adjacent to each other on the left and right are clamped in the same row of composite lead wire clamping grooves 2.6 to form the same composite lead wire, so twelve composite lead wires are required to be prepared on one die body. And casting concave cavities 2.7 for generating hangers are also arranged on the left and right frame strips 2.6 of the mould body. In the embodiment, the casting concave cavities 2.7 are arranged at the upper ends of the frame strips 2.6 at the left and right sides of the die body at the manufacturing parts of the two uppermost embryonic grids, and the corresponding injection molding positions of the hangers are arranged at the upper ends of the outer sides of the die body at the manufacturing parts of the two uppermost embryonic grids;
straightening and clamping each composite lead wire 1 into a corresponding composite lead wire clamping groove, wherein the composite lead wires are parallel to each other; then, covering the mould cover on the mould body;
thirdly, integrally placing the grid manufacturing mould with the installed composite lead wire into an injection molding machine; then the injection molding machine injects the melted ABS raw material into a grid manufacturing mold; the main parameters of the injection molding process are as follows: the temperature of the die is 65 ℃, the temperature of the plastic is 240 ℃, and the pressure is 100 KPa;
after the injection molding operation is finished, taking down the grid manufacturing mold from the injection molding machine to perform cooling operation so as to obtain a prototype grid set;
fifthly, taking down the prototype grid set from the grid manufacturing mould, checking the quality of the prototype grid set, and trimming off useless composite lead wire ends on the qualified prototype grid set;
sixthly, casting a lug plate in the lug injection molding area by using a gravity casting method; cooling after casting, and performing corresponding punch forming operation on the lug plate blocks after cooling so as to punch a lug for each prototype grid; one end of the lug of the left and right adjacent prototype grids is connected with the prototype grid to which the lug belongs, and the other end of the lug of the other prototype grid is connected with the lug of the other prototype grid;
seventhly, filling lead paste into the blank grid set obtained in the last step to obtain a plate set;
and eighthly, cutting off hanging lugs and connecting walls of the polar plate set, and simultaneously separating the left grid and the right grid which are adjacent to each other, thereby finally obtaining four grids.
The above embodiments are merely preferred embodiments of the present invention, and not intended to limit the structure and scope of the invention. Indeed, many equivalent variations in the shapes, constructions and design objectives of the devices according to the present invention are possible. Therefore, all equivalent changes in the shapes, structures and design objectives of the present invention are intended to be covered by the present invention, and all such equivalent changes are intended to be protected by the present invention.
Claims (3)
1. A preparation method of a polar plate for a lead storage battery is characterized by comprising the following steps: the method comprises the following steps:
preparing manufacturing tools and materials including composite lead wires, ABS raw materials, an injection molding machine and a grid manufacturing mold; the grid manufacturing mould comprises a mould body and a mould cover; the die body is provided with two grid injection molding areas, each grid injection molding area is composed of two to three blank grid injection molding areas which are sequentially arranged from front to back and are connected with each other through a connecting wall, and each blank grid injection molding area comprises an injection molding main area and an electrode lug injection molding area; the injection molding areas of the corresponding rudiment grids in the two different groups are bilaterally symmetrical, and the two lug injection molding areas with the same front and back positions on the left and right sides are overlapped; each rudiment grid injection molding area is provided with a plurality of composite lead wire support rods moving forwards and backwards, and the composite lead wire support rods and the left and right frame strips of the mold body are respectively provided with a plurality of composite lead wire clamping grooves matched with the composite lead wires; the left and right frame strips of the mould body are also provided with casting concave cavity lugs for generating lugs;
secondly, straightening and clamping a plurality of composite lead wires into corresponding composite lead wire clamping grooves, wherein the composite lead wires are parallel to each other; covering the mould cover on the mould body;
thirdly, integrally placing the grid manufacturing mould with the installed composite lead wire into an injection molding machine; then the injection molding machine injects the melted ABS raw material into a grid manufacturing mold;
after the injection molding operation is finished, taking down the grid manufacturing mold from the injection molding machine to perform cooling operation so as to obtain a prototype grid set;
fifthly, taking down the prototype grid set from the grid manufacturing mould, checking the quality of the prototype grid set, and trimming off useless composite lead wire ends on the qualified prototype grid set;
sixthly, casting a lug plate in the lug injection molding area by using a gravity casting method; cooling after casting, and performing corresponding punch forming operation on the lug plate blocks after cooling so as to punch a lug for each prototype grid; one end of the lug of the left and right adjacent prototype grids is connected with the prototype grid to which the lug belongs, and the other end of the lug of the other prototype grid is connected with the lug of the other prototype grid;
seventhly, filling lead paste into the blank grid set obtained in the last step to obtain a plate set;
and eighthly, cutting off hanging lugs and connecting walls of the polar plate set, and simultaneously cutting off two left and right adjacent polar plates to obtain a plurality of polar plates.
2. The method for producing an electrode plate for a lead-acid battery according to claim 1, wherein: the hangers are arranged at the upper ends of the outer sides of the die bodies of the two rudimental grid manufacturing parts in the uppermost line or at the lower ends of the outer sides of the die bodies of the two rudimental grid manufacturing parts in the lowermost line.
3. The method for producing an electrode plate for a lead-acid battery according to claim 1, wherein: the number of the composite lead wires on each grid is five to eight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010306807.3A CN111584830A (en) | 2020-04-17 | 2020-04-17 | Preparation method of polar plate for lead storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010306807.3A CN111584830A (en) | 2020-04-17 | 2020-04-17 | Preparation method of polar plate for lead storage battery |
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| Publication Number | Publication Date |
|---|---|
| CN111584830A true CN111584830A (en) | 2020-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010306807.3A Pending CN111584830A (en) | 2020-04-17 | 2020-04-17 | Preparation method of polar plate for lead storage battery |
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| CN (1) | CN111584830A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114678489A (en) * | 2022-03-25 | 2022-06-28 | 天能电池集团股份有限公司 | Continuous manufacturing method and continuous manufacturing device for tubular polar plate |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1136715A (en) * | 1996-04-17 | 1996-11-27 | 中国轻工总会化学电源研究所 | Electrode plate of accumulator |
| JP2000082473A (en) * | 1998-09-03 | 2000-03-21 | Shin Kobe Electric Mach Co Ltd | Sealed lead-acid battery |
| CN101694878A (en) * | 2009-10-14 | 2010-04-14 | 刘粤荣 | Hybrid current collector used for lead storage batteries |
| CN103117395A (en) * | 2013-01-30 | 2013-05-22 | 淄博火炬能源有限责任公司 | Manufacturing method of lead-acid storage battery negative grid |
| CN109524673A (en) * | 2018-12-14 | 2019-03-26 | 超威电源有限公司 | Grid and its manufacturing method, pole plate and lead-acid accumulator |
| CN210245618U (en) * | 2019-08-02 | 2020-04-03 | 山东牛千里电源科技有限公司 | Grid of lead-acid battery and lead-acid battery |
-
2020
- 2020-04-17 CN CN202010306807.3A patent/CN111584830A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1136715A (en) * | 1996-04-17 | 1996-11-27 | 中国轻工总会化学电源研究所 | Electrode plate of accumulator |
| JP2000082473A (en) * | 1998-09-03 | 2000-03-21 | Shin Kobe Electric Mach Co Ltd | Sealed lead-acid battery |
| CN101694878A (en) * | 2009-10-14 | 2010-04-14 | 刘粤荣 | Hybrid current collector used for lead storage batteries |
| CN103117395A (en) * | 2013-01-30 | 2013-05-22 | 淄博火炬能源有限责任公司 | Manufacturing method of lead-acid storage battery negative grid |
| CN109524673A (en) * | 2018-12-14 | 2019-03-26 | 超威电源有限公司 | Grid and its manufacturing method, pole plate and lead-acid accumulator |
| CN210245618U (en) * | 2019-08-02 | 2020-04-03 | 山东牛千里电源科技有限公司 | Grid of lead-acid battery and lead-acid battery |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114678489A (en) * | 2022-03-25 | 2022-06-28 | 天能电池集团股份有限公司 | Continuous manufacturing method and continuous manufacturing device for tubular polar plate |
| CN114678489B (en) * | 2022-03-25 | 2024-03-22 | 天能电池集团股份有限公司 | Continuous manufacturing method and continuous manufacturing device for tubular polar plate |
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Application publication date: 20200825 |
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