CN113161629A - Polar plate connecting method of lead-acid storage battery - Google Patents
Polar plate connecting method of lead-acid storage battery Download PDFInfo
- Publication number
- CN113161629A CN113161629A CN202011026234.5A CN202011026234A CN113161629A CN 113161629 A CN113161629 A CN 113161629A CN 202011026234 A CN202011026234 A CN 202011026234A CN 113161629 A CN113161629 A CN 113161629A
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- China
- Prior art keywords
- liquid lead
- mold
- lead
- welded
- cavity
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000002253 acid Substances 0.000 title claims abstract description 18
- 238000003860 storage Methods 0.000 title claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 69
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims description 18
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 229910000464 lead oxide Inorganic materials 0.000 description 6
- PIJPYDMVFNTHIP-UHFFFAOYSA-L lead sulfate Chemical compound [PbH4+2].[O-]S([O-])(=O)=O PIJPYDMVFNTHIP-UHFFFAOYSA-L 0.000 description 6
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 6
- 229910001338 liquidmetal Inorganic materials 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/06—Lead-acid accumulators
- H01M10/12—Construction or manufacture
- H01M10/14—Assembling a group of electrodes or separators
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention relates to a method for connecting polar plates of a lead-acid storage battery, which comprises the steps of injecting liquid lead into a mold; inserting the electrode lugs of the electrode group into the mold; cooling the liquid lead and connecting the liquid lead and the lug into a whole; and demolding, wherein after the liquid lead is injected into the mold, the method further comprises the step of electrifying the liquid lead. The manufacturing method of the invention has high efficiency and low cost.
Description
Technical Field
The invention relates to the field of lead-acid storage battery manufacturing.
Background
The connection technology of the lead-acid storage battery pole plates in the prior art adopts manual welding to generate a large amount of toxic gas, which is not beneficial to health and seriously affects production efficiency.
Disclosure of Invention
In order to solve the technical problem, the invention provides a method for connecting pole plates of a lead-acid storage battery, which comprises the steps of injecting liquid lead into a mold; inserting the electrode lugs of the electrode group into the mold; cooling the liquid lead and connecting the liquid lead and the lug into a whole; and demolding, wherein after the liquid lead is injected into the mold, the method further comprises the step of electrifying the liquid lead.
Further, the step of energizing the liquid lead is provided after the step of inserting the tab of the electrode group into the mold.
And further, the liquid lead is powered off, cooled and connected with the lug into a whole.
Further, the liquid lead is injected into the mold by means of immersion.
Further, the liquid lead is injected into the mold through an injection port in the mold.
The invention also protects a mould and a method of welding a body to be welded.
The pole plate connecting method has high efficiency and low cost.
Drawings
FIG. 1 is a schematic diagram of a lead acid battery of the present invention with the battery cover removed;
FIG. 2 is a schematic view of a single pole group of a lead acid battery of the present invention;
FIG. 3 is a cross-sectional view of the inventive die;
FIG. 4 is a schematic view of the tab welding of the lead acid battery of the present invention;
FIG. 5 is a schematic view of a mold installation according to another embodiment of the present invention;
fig. 6 is a schematic view of a mold according to another embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the specific drawings.
As shown in fig. 1 and 2, the lead-acid storage battery of the invention comprises a battery shell 1, a pole group 2 arranged on the battery shell 1, a pole group 2 and a pole plate, wherein the pole plate is provided with a pole ear 3, and a bus bar 10 for connecting the pole ear.
As shown in fig. 3, the mold 4 includes a mold housing 5, a cavity 6 is provided in the housing 5, the cavity 6 is used for receiving a body to be welded, such as the pole group 2, and the cavity 6 is used for receiving liquid lead 7, which can be injected through an injection port 20 or can be achieved by sinking the mold into the liquid lead. A positive electric connection port 8 and a negative electric connection port 9 are formed on the shell 5 of the die 4, the positive electric connection port 8 and the negative electric connection port 9 can be electrically connected with the liquid lead, and the positive electric connection port 8 and the negative electric connection port 9 are electrically connected with an external power supply through wires.
As shown in fig. 4, a method for connecting the polar plates of a lead-acid storage battery comprises the following steps of injecting liquid lead 7 into a cavity 6 of a mold 4; inserting the tab 3 of the electrode group 2 into the cavity 6 of the mold 4 (liquid lead 7 is shown in fig. 4, and the tab 3 is not inserted into the bottom of the cavity 6); the positive electric connection port 8 and the negative electric connection port 9 on the shell 5 are externally connected with a power supply (not shown in the figure) through wires, liquid lead in the cavity 6 of the die 4 is electrified, the current passing pole lug fused with the liquid lead is high in resistance and the surface resistance of the pole lug passing the current is high, so that lead oxide and lead sulfate on the surface of the pole lug can fall off from the surface of the pole lug, the fusion welding of the liquid lead and the pole lug of a polar plate is facilitated, and in addition, the density of the lead oxide and the lead sulfate is lower than that of the liquid lead, and the lead oxide and the lead sulfate finally float on the surface of the liquid lead; disconnecting the external power supply; and demolding the mold 4 after the liquid lead is cooled and solidified with the pole lug. Lead oxide and lead sulfate can be finally formed on the surface of the bus bar formed after liquid lead is cooled, and the electric conduction is basically not influenced. The pole plate connecting method of the lead-acid storage battery can also realize the purpose of the invention by firstly inserting the pole lugs of the pole group into the mould and then injecting liquid lead into the mould to form electrification. The liquid lead 7 can be injected into the cavity 6 of the die 4, namely the liquid lead in the cavity 6 of the die 4 is electrified, so that the temperature of the liquid lead can be kept, and the treatment of lead oxide and lead sulfate on the surface of the tab is accelerated after the tab penetrates into the liquid lead.
The pole group 2 can be put into the battery shell 1 to be completely put into the groove, and then the tab 3 of the pole group 2 is deeply inserted into the cavity 6 of the die 4 to be die-welded; or the tab 3 of the electrode group 2 is placed into the battery shell 1 and is completely put into the groove after being welded and demoulded. In addition, since the weight of the die is much lighter than the weight of the body to be welded, such as a pole group, the way in which the tab 3 of the pole group 2 of the present invention is inserted into the cavity 6 of the die 4 is preferably that the die 4 is moved in the direction of the tab 3 of the pole group 2, and further, in order to avoid the liquid lead from dripping onto the body to be welded, such as a pole group, during welding, the die 4 is preferably located below the tab 3 of the pole group 2. Of course, the manner of inserting the tab 3 of the electrode group 2 into the cavity 6 of the mold 4 may be that the mold 4 moves from the top toward the tab 3 of the electrode group 2, as shown in fig. 5, the mold 4 has a cavity 6, liquid lead (not shown in the figure) can be injected into the cavity 6, the cavity 6 has a bottom 12, a tab hole 11 is formed on the bottom 12, the mold 4 moves from the top toward the tab 3 of the electrode group 2, that is, the tab 3 passes through the tab hole 11, and the bottom 12 of the cavity 6 realizes the isolation and sealing of the tab to be welded and the tab below. The mold 4 may be mounted on the battery case or on the body to be welded, such as a tab, or fixed by other means, as desired. The invention effectively removes the impurities such as lead oxide, lead sulfate and the like on the surface of the lug by electrifying the liquid lead, thereby ensuring the welding effect and avoiding the defect that the traditional welding machine needs to polish the surface of the lug.
The method for using the mold of the present invention, the first embodiment method: injecting liquid lead into the mould; the body to be welded is inserted into the cavity of the mould; cooling the liquid lead and connecting the liquid lead and the body to be welded into a whole; demolding; and electrifying the liquid lead after the liquid lead is injected into the mould. The using method of the die can also be that the body to be welded is inserted into the cavity of the die; and then liquid lead is injected into the mould, so that the aim of the invention can be achieved.
In addition, the welding method of the invention can be applied to welding the battery tab and can also be applied to other occasions needing welding. When the welding device is applied to other occasions, only the body to be welded needs to be inserted into the cavity of the die, namely, the welding part of the body to be welded is inserted into the cavity, and the liquid metal arranged in the cavity of the die is subjected to welding; and demolding after the liquid metal is cooled and solidified with the body to be welded. Also, the body to be welded is preferably inserted into the cavity of the mold by moving the mold from below to the body to be welded located above. The welding method of the invention also can be realized by firstly penetrating the body to be welded into the cavity of the mould and then injecting the liquid lead into the mould.
In addition, the liquid metal of the invention can be in the same cavity with the part to be welded of the body to be welded, or in different cavities, as long as the communication between the cavities is ensured, the liquid metal can circulate and can realize welding, namely, the die is provided with a first cavity and a second cavity, the fusible metal such as lead is positioned in the first cavity, the part to be welded of the body to be welded is positioned in the second cavity, the first cavity is communicated with the second cavity, and the liquid metal can flow into the second cavity from the first cavity, thereby realizing the welding of the body to be welded.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.
Claims (11)
1. A method for connecting pole plates of a lead-acid storage battery comprises the steps of injecting liquid lead into a mold; inserting the electrode lugs of the electrode group into the mold; cooling the liquid lead and connecting the liquid lead and the lug into a whole; and demolding, wherein after the liquid lead is injected into the mold, the method further comprises the step of electrifying the liquid lead.
2. The method of claim 1, wherein the step of injecting liquid lead into the mold is replaced by the step of inserting the tabs of the plate group into the mold, and the step of inserting the tabs of the plate group into the mold is replaced by the step of injecting liquid lead into the mold.
3. A method of connecting plates of a lead-acid battery according to claim 1 or 2, characterized in that said liquid lead is cooled and integrated with said tabs by de-energizing said liquid lead.
4. The method for connecting pole plates of a lead-acid storage battery according to claim 1 or 2, wherein the liquid lead is injected into the mold by being integrally immersed in the liquid lead.
5. The method for connecting pole plates of a lead-acid storage battery as claimed in claim 1 or 2, wherein the liquid lead is injected into the mold through an injection port in the mold.
6. The die comprises a shell and a cavity formed in the shell, wherein the cavity is used for receiving liquid lead, and the die is characterized in that positive and negative electric connection ports are arranged on the shell and can be electrically connected with the liquid lead.
7. The mold of claim 6, wherein the mold is applied to the welding of a pole group of a lead acid battery.
8. The use method of the mold according to claim 6 or 7, wherein liquid lead is injected into the mold; the body to be welded is inserted into the cavity of the mould; the liquid lead is cooled and is connected with the body to be welded into a whole; and demolding, wherein after the liquid lead is injected into the mold, the method further comprises the step of electrifying the liquid lead.
9. The use method of the die as claimed in claim 6 or 7, wherein the body to be welded is inserted into the die cavity; injecting liquid lead into the mould; the liquid lead is cooled and is connected with the body to be welded into a whole; and demolding, wherein after the liquid lead is injected into the mold, the method further comprises the step of electrifying the liquid lead.
10. A welding method of a body to be welded is characterized in that liquid lead is injected into a die; the body to be welded is inserted into the cavity of the mould; the liquid lead is cooled and is connected with the body to be welded into a whole; and demolding, wherein after the liquid lead is injected into the mold, the method further comprises the step of electrifying the liquid lead.
11. The method for connecting pole plates of a lead-acid storage battery according to claim 10, wherein the step of injecting the liquid lead into the mold is replaced by the step of inserting the body to be welded into the cavity of the mold, and the step of inserting the body to be welded into the cavity of the mold is replaced by the step of injecting the liquid lead into the mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011026234.5A CN113161629A (en) | 2020-09-25 | 2020-09-25 | Polar plate connecting method of lead-acid storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011026234.5A CN113161629A (en) | 2020-09-25 | 2020-09-25 | Polar plate connecting method of lead-acid storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113161629A true CN113161629A (en) | 2021-07-23 |
Family
ID=76882382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011026234.5A Pending CN113161629A (en) | 2020-09-25 | 2020-09-25 | Polar plate connecting method of lead-acid storage battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113161629A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55148366A (en) * | 1979-05-10 | 1980-11-18 | Furukawa Battery Co Ltd:The | Welder for cell plate lug groups and cast strap |
| JPH0817421A (en) * | 1994-07-04 | 1996-01-19 | Yuasa Corp | Manufacture of plate group for lead acid battery |
| JPH11345603A (en) * | 1998-06-01 | 1999-12-14 | Japan Storage Battery Co Ltd | Forming method of strap for lead-acid battery |
| JP2000231916A (en) * | 1999-02-10 | 2000-08-22 | Shin Kobe Electric Mach Co Ltd | Apparatus and method for welding lead-acid battery electrode plate group |
| JP2000277089A (en) * | 1999-03-26 | 2000-10-06 | Yuasa Corp | Manufacture of lead-acid battery |
| CN102891278A (en) * | 2012-10-18 | 2013-01-23 | 双登集团股份有限公司 | Casting and welding method of lead-acid storage battery busbar |
| CN106601975A (en) * | 2016-12-28 | 2017-04-26 | 双登集团股份有限公司 | Coating for coating grid lugs of lead-acid storage battery and coating method |
| CN109860625A (en) * | 2018-12-27 | 2019-06-07 | 安徽理士电源技术有限公司 | Battery pole group cast welding technical process control method and device thereof |
-
2020
- 2020-09-25 CN CN202011026234.5A patent/CN113161629A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55148366A (en) * | 1979-05-10 | 1980-11-18 | Furukawa Battery Co Ltd:The | Welder for cell plate lug groups and cast strap |
| JPH0817421A (en) * | 1994-07-04 | 1996-01-19 | Yuasa Corp | Manufacture of plate group for lead acid battery |
| JPH11345603A (en) * | 1998-06-01 | 1999-12-14 | Japan Storage Battery Co Ltd | Forming method of strap for lead-acid battery |
| JP2000231916A (en) * | 1999-02-10 | 2000-08-22 | Shin Kobe Electric Mach Co Ltd | Apparatus and method for welding lead-acid battery electrode plate group |
| JP2000277089A (en) * | 1999-03-26 | 2000-10-06 | Yuasa Corp | Manufacture of lead-acid battery |
| CN102891278A (en) * | 2012-10-18 | 2013-01-23 | 双登集团股份有限公司 | Casting and welding method of lead-acid storage battery busbar |
| CN106601975A (en) * | 2016-12-28 | 2017-04-26 | 双登集团股份有限公司 | Coating for coating grid lugs of lead-acid storage battery and coating method |
| CN109860625A (en) * | 2018-12-27 | 2019-06-07 | 安徽理士电源技术有限公司 | Battery pole group cast welding technical process control method and device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20211203 Address after: 311100 room 1120, 3rd floor, building 1, 187 Yunxi Road, Tangqi Town, Yuhang District, Hangzhou City, Zhejiang Province Applicant after: Hangzhou lead lithium Zhixing Technology Co.,Ltd. Address before: 233000 No.31, building 25, District 9, Guangcai market, bengshan District, Bengbu City, Anhui Province Applicant before: Bengbu Ruide New Energy Technology Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| CB02 | Change of applicant information |
Address after: 311100 room 1120, 3rd floor, building 1, 187 Yunxi Road, Tangqi Town, Yuhang District, Hangzhou City, Zhejiang Province Applicant after: Zhejiang Zhixing Technology Co.,Ltd. Address before: 311100 room 1120, 3rd floor, building 1, 187 Yunxi Road, Tangqi Town, Yuhang District, Hangzhou City, Zhejiang Province Applicant before: Hangzhou lead lithium Zhixing Technology Co.,Ltd. |
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| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210723 |