CN110860854A - Continuous welding process for lithium battery charging and discharging circuit - Google Patents
Continuous welding process for lithium battery charging and discharging circuit Download PDFInfo
- Publication number
- CN110860854A CN110860854A CN201910947585.0A CN201910947585A CN110860854A CN 110860854 A CN110860854 A CN 110860854A CN 201910947585 A CN201910947585 A CN 201910947585A CN 110860854 A CN110860854 A CN 110860854A
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- sheet
- connecting sheet
- welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
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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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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses a continuous welding process for a lithium battery charging and discharging circuit, which comprises the following steps: covering an aluminum strip on a nickel strip to form a carrier strip, and stamping the carrier strip to form a stamping strip, wherein the stamping strip is provided with connecting components which are continuously arranged; the connecting assembly comprises a square frame, and a positive connecting sheet and a negative connecting sheet which are positioned in the square frame; the anode connecting sheet is a nickel sheet, the cathode connecting sheet is provided with a welding sheet, and the cathode connecting sheet is a nickel-aluminum composite sheet; a gap is formed between opposite side edges of the positive connecting sheet and the negative connecting sheet, and connecting strips connected with the square frame are arranged on other side edges of the positive connecting sheet and the negative connecting sheet; placing the thermal protector on a welding workbench, then placing the stamping belt on the welding workbench, wherein the surface of the stamping belt covered with the aluminum belt faces upwards, one end of the thermal protector is welded on the positive connecting sheet, and the other end of the thermal protector is welded on the nickel surface of the welding sheet of the negative connecting sheet; and (5) obtaining a finished product after welding. The invention greatly improves the production efficiency and the yield.
Description
Technical Field
The invention belongs to the field of lithium batteries, and particularly relates to a continuous welding process for a lithium battery charging and discharging circuit.
Background
In lithium battery charging and discharging circuit's manufacture process, positive connection piece, negative connection piece, hot protector, volume are less, take to hold between the fingers the welding inconvenient, and the workman is a lithium battery among the prior art and dashes discharging circuit and need just can weld after putting positive connection piece, negative pole connection piece, the equal piece of hot protector of taking between the fingers, and the working hour overlength of making a lithium battery dashes discharging circuit. During welding, on one hand, the welding is difficult to align and the welding is easy to bend, on the other hand, workers are affected by working light or easily mix the nickel-aluminum welding surface of the negative connecting piece after long-time operation due to eye fatigue, so that the yield is greatly reduced, and the economic loss and the enterprise cost are increased due to the fact that aluminum and nickel materials are expensive and the yield is greatly reduced.
Disclosure of Invention
The invention aims to provide a continuous welding process for a lithium battery charging and discharging circuit.
The invention has the innovation points that the positive connecting piece and the negative connecting piece are connected to one stamping belt in a stamping mode, the thermal protector is directly placed on the welding workbench during welding, then the stamping belt is placed on the welding workbench for welding, the nickel-aluminum surface of the negative connecting piece is only required to be clearly separated when the stamping belt is placed, one piece of sheet is not required to be separated, the positive connecting piece and the negative connecting piece are fixedly connected to the stamping belt, the stamping position is fixed, and the welding is rapid and cannot make mistakes.
In order to achieve the purpose, the technical scheme of the invention is as follows: a lithium battery charging and discharging circuit continuous welding process comprises the following steps:
(1) milling a groove on the nickel strip, covering an aluminum strip in the groove channel after the groove milling to form a carrier strip, and stamping the carrier strip to form a stamping strip, wherein the stamping strip is provided with a continuously arranged connecting component; the connecting assembly comprises a square frame, and a positive connecting sheet and a negative connecting sheet which are positioned in the square frame; the anode connecting sheet is a nickel sheet, one side of the cathode connecting sheet close to the anode connecting sheet is provided with a welding sheet, and the cathode connecting sheet is a nickel-aluminum composite sheet; a gap is formed between opposite side edges of the positive connecting sheet and the negative connecting sheet, and connecting strips connected with the square frame are arranged on other side edges of the positive connecting sheet and the negative connecting sheet;
(2) placing a thermal protector on a welding workbench, then placing a stamping belt on the welding workbench, wherein the surface of the stamping belt covered with an aluminum belt faces upwards, the thermal protector is positioned between a gap between an anode connecting sheet and a cathode connecting sheet of a connecting assembly, one end of the thermal protector is welded on the anode connecting sheet, and the other end of the thermal protector is welded on a nickel surface of a welding sheet of the cathode connecting sheet;
(3) and pulling the positive connecting sheet and the negative connecting sheet after welding is finished, and breaking the connecting strips to obtain a finished product.
Further, the aluminum strip is rolled onto a nickel strip.
Further, the width of the connecting strip is 2 mm. The positive connecting sheet and the negative connecting sheet can be conveniently pulled.
Furthermore, a plurality of grooves which are arranged at equal intervals and used for placing the thermal protector are arranged on the welding workbench, and the interval between the grooves is equal to the interval between two adjacent positive connecting sheets of the stamping belt. The position of hot protector can be fixed to the recess, and difficult welding is crooked during the welding.
Further, a side edge is shared between the two adjacent square frames. The carrier belt is utilized to a greater extent, and the waste material is reduced.
Furthermore, a stamping hole is formed in the common side edge of the square frame, and a protrusion matched with the stamping hole is formed in the welding workbench. And the punching belt is further fixed, so that the punching belt cannot generate displacement, and the welding precision is higher.
Further, the thermal protector is a bimetallic thermal protector.
Further, the welding sheet is turned over from the nickel surface of the welding sheet to the aluminum surface of the welding sheet. And the welding is easy when the thermal protector is welded.
The invention has the beneficial effects that: according to the invention, the positive connecting sheet and the negative connecting sheet are continuously connected on one stamping belt in a stamping manner, the thermal protector is directly placed on the welding workbench during welding, then the stamping belt is placed on the welding workbench for welding, only the nickel-aluminum surface of the negative connecting sheet is cleaned when the stamping belt is placed, one sheet is not needed to be separated, the positive connecting sheet and the negative connecting sheet are fixedly connected on the stamping belt, only the position of the stamping belt is fixed, the welding is rapid, no error occurs, the production efficiency is greatly improved, and the yield is greatly improved.
Drawings
FIG. 1 is a schematic structural view of a stamping belt;
FIG. 2 is a schematic structural diagram of a nickel strap;
FIG. 3 is a schematic view of the structure of the carrier tape;
FIG. 4 is a schematic structural view of the finished product;
fig. 5 is a top view of the welding bench.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
Example 1: as shown in fig. 1 and 2, in the continuous welding process of the lithium battery charging and discharging circuit, a groove is milled on a nickel strip 1, an aluminum strip 2 is coated in a groove channel after the groove is milled to form a carrier strip 3, the aluminum strip 2 is coated on the nickel strip 1 through a rolling process, the carrier strip 3 is punched to form a punching strip 4, and a connecting component 5 which is continuously arranged is presented on the punching strip 4; the connecting assembly 5 comprises a square frame 6, and a positive connecting sheet 7 and a negative connecting sheet 8 which are positioned in the square frame 6; the positive connecting piece 7 is a nickel piece, one side of the negative connecting piece 8 close to the positive connecting piece 7 is provided with a welding piece 9, and the negative connecting piece 8 is a nickel-aluminum composite sheet; a side edge is shared between every two adjacent square frames 6, a stamping hole 10 is formed in the shared side edge of each square frame 6, a gap exists between the opposite side edges of the positive connecting sheet 7 and the negative connecting sheet 8, connecting strips 11 connected with the square frames 6 are arranged on the other side edges of the positive connecting sheet 7 and the negative connecting sheet 8, and the width of each connecting strip 11 is preferably 2 mm; placing a thermal protector 12 on a welding workbench 13, wherein the thermal protector 12 is preferably a bimetallic strip thermal protector, a plurality of grooves 14 which are arranged at equal intervals and used for placing the thermal protector 12 are formed in the welding workbench 13, and the interval between the grooves 14 is equal to the interval between two adjacent positive connecting pieces 7 of the stamping belt 4; then the stamping belt 4 is placed on a welding workbench 13, the surface of the stamping belt 4 covered with the aluminum belt faces upwards, a bulge 15 matched with the stamping hole 10 is arranged on the welding workbench 13, a thermal protector 12 is positioned between the gap between the anode connecting sheet 7 and the cathode connecting sheet 8 of the connecting assembly, one end of the thermal protector 12 is welded on the anode connecting sheet, the other end of the thermal protector 12 is welded on the nickel surface of the welding sheet 9 of the cathode connecting sheet 8, and the welding sheet 9 can be turned over from the nickel surface of the welding sheet 9 to the aluminum surface of the welding sheet when the thermal protector 12 and the welding sheet 9 are welded; and pulling the positive connecting sheet 7 and the negative connecting sheet 8 after welding is finished, and breaking the connecting strip 11 to obtain a finished product. And finally, connecting the finished positive connecting sheet 7 to the negative electrode of the lithium battery, and connecting the aluminum surface of the negative connecting sheet 8 to the positive electrode of the lithium battery.
The described embodiments are only some embodiments of the invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Claims (8)
1. A lithium battery charging and discharging circuit continuous welding process is characterized by comprising the following steps:
(1) milling a groove on the nickel strip, covering an aluminum strip in the groove channel after the groove milling to form a carrier strip, and stamping the carrier strip to form a stamping strip, wherein the stamping strip is provided with a continuously arranged connecting component; the connecting assembly comprises a square frame, and a positive connecting sheet and a negative connecting sheet which are positioned in the square frame; the anode connecting sheet is a nickel sheet, one side of the cathode connecting sheet close to the anode connecting sheet is provided with a welding sheet, and the cathode connecting sheet is a nickel-aluminum composite sheet; a gap is formed between opposite side edges of the positive connecting sheet and the negative connecting sheet, and connecting strips connected with the square frame are arranged on other side edges of the positive connecting sheet and the negative connecting sheet;
(2) placing a thermal protector on a welding workbench, then placing a stamping belt on the welding workbench, wherein the surface of the stamping belt covered with an aluminum belt faces upwards, the thermal protector is positioned between a gap between an anode connecting sheet and a cathode connecting sheet of a connecting assembly, one end of the thermal protector is welded on the anode connecting sheet, and the other end of the thermal protector is welded on a nickel surface of a welding sheet of the cathode connecting sheet;
(3) and pulling the positive connecting sheet and the negative connecting sheet after welding is finished, and breaking the connecting strips to obtain a finished product.
2. The continuous welding process for lithium battery charging and discharging circuits as claimed in claim 1, wherein said aluminum strip is rolled onto a nickel strip.
3. The continuous welding process of the lithium battery charging and discharging circuit as claimed in claim 1, wherein the width of the connecting strip is 2 mm.
4. The continuous welding process for the lithium battery charging and discharging circuit as claimed in claim 1, wherein the welding workbench is provided with a plurality of grooves which are arranged at equal intervals and used for placing the thermal protector, and the intervals of the grooves are equal to the intervals between two adjacent positive connecting pieces of the stamping belt.
5. The continuous welding process for the lithium battery charging and discharging circuit as claimed in claim 4, wherein a side edge is shared between two adjacent square frames.
6. The continuous welding process of the lithium battery punching and discharging circuit as claimed in claim 5, wherein the common side of the square frame is provided with a punching hole, and the welding workbench is provided with a projection matched with the punching hole.
7. The continuous welding process for lithium battery charging and discharging circuits as claimed in claim 1, wherein said thermal protector is a bimetallic thermal protector.
8. The continuous welding process for lithium battery charging and discharging circuits as claimed in claim 1, wherein the welding sheet is folded from the nickel surface of the welding sheet to the aluminum surface of the welding sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910947585.0A CN110860854B (en) | 2019-10-08 | 2019-10-08 | Continuous welding process for lithium battery charging and discharging circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910947585.0A CN110860854B (en) | 2019-10-08 | 2019-10-08 | Continuous welding process for lithium battery charging and discharging circuit |
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| Publication Number | Publication Date |
|---|---|
| CN110860854A true CN110860854A (en) | 2020-03-06 |
| CN110860854B CN110860854B (en) | 2021-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910947585.0A Active CN110860854B (en) | 2019-10-08 | 2019-10-08 | Continuous welding process for lithium battery charging and discharging circuit |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040126656A1 (en) * | 2002-12-18 | 2004-07-01 | Sung-Jae Cho | Secondary battery and method of manufacturing same |
| CN102773648A (en) * | 2012-08-16 | 2012-11-14 | 东莞新能德科技有限公司 | Welding clamp of lithium ion battery breaker |
| CN104795529A (en) * | 2015-04-15 | 2015-07-22 | 谢振华 | Lithium batterypositive ear and processing method thereof |
| CN204614845U (en) * | 2015-04-15 | 2015-09-02 | 谢振华 | A kind of lithium battery group Electrode connection plate structure |
| CN105552292A (en) * | 2016-01-31 | 2016-05-04 | 谢振华 | Production technology of lithium battery tab |
| CN105633329A (en) * | 2014-11-28 | 2016-06-01 | 谢振华 | Special assembly strip for battery protective plate connecting piece |
| CN208189719U (en) * | 2018-04-27 | 2018-12-04 | 湖南丰源业翔晶科新能源股份有限公司 | A kind of temperature-sensitive tab and lithium ion battery for promoting lithium electricity and overcharging stability |
| CN110212143A (en) * | 2019-05-17 | 2019-09-06 | 河南顺之航能源科技有限公司 | A kind of multi-layer cell connection sheet that positive and negative anodes are compound |
-
2019
- 2019-10-08 CN CN201910947585.0A patent/CN110860854B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040126656A1 (en) * | 2002-12-18 | 2004-07-01 | Sung-Jae Cho | Secondary battery and method of manufacturing same |
| CN102773648A (en) * | 2012-08-16 | 2012-11-14 | 东莞新能德科技有限公司 | Welding clamp of lithium ion battery breaker |
| CN105633329A (en) * | 2014-11-28 | 2016-06-01 | 谢振华 | Special assembly strip for battery protective plate connecting piece |
| CN104795529A (en) * | 2015-04-15 | 2015-07-22 | 谢振华 | Lithium batterypositive ear and processing method thereof |
| CN204614845U (en) * | 2015-04-15 | 2015-09-02 | 谢振华 | A kind of lithium battery group Electrode connection plate structure |
| CN105552292A (en) * | 2016-01-31 | 2016-05-04 | 谢振华 | Production technology of lithium battery tab |
| CN208189719U (en) * | 2018-04-27 | 2018-12-04 | 湖南丰源业翔晶科新能源股份有限公司 | A kind of temperature-sensitive tab and lithium ion battery for promoting lithium electricity and overcharging stability |
| CN110212143A (en) * | 2019-05-17 | 2019-09-06 | 河南顺之航能源科技有限公司 | A kind of multi-layer cell connection sheet that positive and negative anodes are compound |
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| CN110860854B (en) | 2021-11-12 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A continuous welding process for impulse discharge circuit of lithium battery Effective date of registration: 20211230 Granted publication date: 20211112 Pledgee: Bank of China Limited Yixing branch Pledgor: YIXING HUIHUA CLADDING MATERIAL CO.,LTD. Registration number: Y2021980017068 |
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