CN112518119A - Tab welding process of nickel-based high-energy battery - Google Patents
Tab welding process of nickel-based high-energy battery Download PDFInfo
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- CN112518119A CN112518119A CN202011322561.5A CN202011322561A CN112518119A CN 112518119 A CN112518119 A CN 112518119A CN 202011322561 A CN202011322561 A CN 202011322561A CN 112518119 A CN112518119 A CN 112518119A
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- Prior art keywords
- welding
- nickel
- tab
- energy battery
- based high
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- 238000003466 welding Methods 0.000 title claims abstract description 128
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 126
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 30
- 239000002002 slurry Substances 0.000 claims abstract description 10
- 238000001035 drying Methods 0.000 claims abstract description 5
- 238000005096 rolling process Methods 0.000 claims abstract description 5
- 238000011282 treatment Methods 0.000 claims abstract description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
-
- 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)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
A tab welding process of a nickel-based high-energy battery comprises the following specific steps: firstly, a nickel-based material belt is subjected to treatment such as slurry drying and rolling to form a polar belt of a nickel-based high-energy battery; secondly, the polar band of the nickel-based high-energy battery is sent to a laser welding area of laser welding equipment by a mechanical positioning mechanism; thirdly, reserving a nickel base material belt welding area which is not added with slurry and is modified in advance on the pole belt, and taking out the tab to be welded from a manipulator to be placed on the nickel base material belt welding area on the pole belt; fourthly, fixing the tab to be welded by using a positioning device; and fifthly, welding the electrode lug by using welding equipment in a laser mode, and thus forming in one step.
Description
Technical Field
The invention belongs to the field of batteries, and particularly relates to a tab welding process of a nickel-based high-energy battery.
Background
The traditional battery tab welding process generally adopts a two-time welding process: firstly, a single tab is spot-welded, generally 6-10 points are spot-welded on one tab, and then seam-welded by a seam welder. The welding mode can only meet the general requirements of multiplying power charge and discharge of the nickel-based battery, and can not solve the key problems of high multiplying power and heavy current charge and discharge, heavy current starting, operation and the like of various devices; meanwhile, the welding method has complex steps and low processing efficiency, and large-scale batch production of the nickel-based battery cannot be realized.
Disclosure of Invention
In order to solve the problems, the invention provides a tab welding process of a nickel-based high-energy battery, which comprises the following steps:
a tab welding process of a nickel-based high-energy battery comprises the following specific steps:
firstly, a nickel-based material belt is subjected to treatment such as slurry drying and rolling to form a polar belt of a nickel-based high-energy battery;
secondly, the polar band of the nickel-based high-energy battery is sent to a laser welding area of laser welding equipment by a mechanical positioning mechanism;
thirdly, reserving a nickel base material belt welding area which is not added with slurry and is modified in advance on the pole belt, and taking out the tab to be welded from a manipulator to be placed on the nickel base material belt welding area on the pole belt;
fourthly, fixing the tab to be welded by using a positioning device;
and fifthly, welding the electrode lug by using welding equipment in a laser mode, and thus forming in one step.
Preferably, the width of the welding area of the nickel-based material belt is matched with the width of the tab. The width of the nickel base material strip welding area can be adjusted according to the actual width of the electrode lug.
Preferably, the positioning device for fixing the tab to be welded is hollow, so that one-time welding by laser is facilitated.
Preferably, the welding equipment is a laser welding machine, and the number of rows of welding and the number of welding points of each row can be adjusted according to the specific conditions on site during welding; meanwhile, the welding energy can be adjusted according to the actual situation.
Preferably, the primary welding area of the pole lug and the pole belt is not less than 4 rows of welding points, and each row of welding points comprises a plurality of punctiform welding points.
Preferably, a plurality of uniformly distributed circular protrusions are arranged on the welding area of the nickel base material belt, the tab is provided with a plurality of uniformly distributed circular grooves, and the circular protrusions and the circular grooves mutually form clamping fit.
Compared with the prior art, the technical scheme provided by the invention has the advantages that the welding process for the tab of the nickel-based high-energy battery can effectively realize the welding between the tab and the electrode band of the nickel-based high-energy battery, the contact area between the electrode band of the battery and the tab is increased by adopting the laser welding technology, the welding strength is improved, the electrode band of the battery is tightly connected with the tab, the internal resistance of the battery is reduced, the conductivity is improved, the high-rate quick charge and discharge capacity of a product is enhanced, the welding efficiency of the tab is improved, the operation is simple, the welding process is suitable for large-scale production and application, and the production practice significance is great.
Drawings
Fig. 1 is a flow chart of a welding process of a nickel-based high-energy battery tab.
FIG. 2 is a diagram of the welding area of the pole strip and the reserved nickel base strip.
Fig. 3 is a diagram of a finished product of laser welding of the pole belt and the pole lug.
Fig. 4 is a welding diagram of the nickel base band and the tab after adjusting the number of laser welding points.
1. A polar band; 2. a nickel-based material strip welding area; 3. a tab; 4. a primary welding zone; 5. laser welding spots; 6. a circular protrusion.
Detailed Description
The invention is further explained below with reference to the figures and examples.
Example 1: a tab welding process of a nickel-based high-energy battery comprises three steps of electrode belt 1, tab 3 releasing and laser welding, wherein the electrode belt 1 is firstly positioned and sent to a laser welding area, then the tab 3 is placed on a reserved nickel-based material belt welding area 2 on the electrode belt 1 through a manipulator, and then the nickel-based material belt welding area is formed in one step through laser welding. The method comprises the following specific steps:
firstly, the nickel-based material belt is subjected to treatments such as slurry drying and rolling to form the pole belt 1 of the nickel-based high-energy battery.
In a second step, the strip 1 of the nickel-based high-energy battery is fed by a mechanical positioning device to the laser welding area of a laser welding apparatus.
And thirdly, reserving a nickel base material strip welding area 2 which is not added with slurry and is modified in advance on the pole strip 1, wherein the width of the nickel base material strip welding area 2 is matched with the width of the pole lug 3. The width of the nickel-based material belt welding area 2 can be adjusted according to the width of the actual tab 3. The tab 3 to be welded is taken out of the nickel base material strip welding area 2 placed on the pole strip 1 by a manipulator.
And fourthly, fixing the tab 3 to be welded by using a positioning device. The positioning device for fixing the tab 3 to be welded is hollow, so that one-time welding can be conveniently carried out by laser.
And fifthly, welding the tab 3 by a laser welding machine, thereby forming the tab in one step. During welding, the number of rows of welding and the number of welding points of each row can be adjusted according to specific conditions on site; the primary welding area 4 of the pole ear 3 and the pole belt 1 is not less than 4 rows of welding points, and each row of welding points comprises a plurality of punctiform welding points. Meanwhile, the welding energy can be adjusted according to the actual situation.
Compared with the prior art, the technical scheme provided by the invention has the advantages that the welding process for the tab of the nickel-based high-energy battery can effectively realize the welding between the tab 3 and the electrode band 1 of the nickel-based high-energy battery, the contact area between the electrode band 1 and the tab 3 is increased by adopting the laser welding technology, the welding contact strength is improved, the electrode band 1 and the tab 3 are tightly connected, the internal resistance of the battery is reduced, the conductivity is improved, the high-rate quick charge and discharge capacity of the product is enhanced, the welding efficiency of the tab 3 is improved, the operation is simple, the welding process is suitable for large-scale production and application, and the production practice significance is great.
Example 2: a tab welding process of a nickel-based high-energy battery comprises three steps of electrode belt 1, tab 3 releasing and laser welding, wherein the electrode belt 1 is firstly positioned and sent to a laser welding area, then the tab 3 is placed on a reserved nickel-based material belt welding area 2 on the electrode belt 1 through a manipulator, and then the nickel-based material belt welding area is formed in one step through laser welding. The method comprises the following specific steps:
firstly, the nickel-based material belt is subjected to treatments such as slurry drying and rolling to form the pole belt 1 of the nickel-based high-energy battery.
In a second step, the strip 1 of the nickel-based high-energy battery is fed by a mechanical positioning device to the laser welding area of a laser welding apparatus.
And thirdly, reserving a nickel base material strip welding area 2 which is not added with slurry and is modified in advance on the pole strip 1, wherein the width of the nickel base material strip welding area 2 is matched with the width of the pole lug 3. The width of the nickel-based material belt welding area 2 can be adjusted according to the width of the actual tab 3. The tab 3 to be welded is taken out of the nickel base material strip welding area 2 placed on the pole strip 1 by a manipulator.
And fourthly, fixing the tab 3 to be welded by using a positioning device. The positioning device for fixing the tab 3 to be welded is hollow, so that one-time welding can be conveniently carried out by laser. The nickel-based material belt welding area 2 is provided with a plurality of uniformly distributed circular protrusions 6, the tab 3 is provided with a plurality of uniformly distributed circular grooves, and the circular protrusions 6 and the circular grooves are mutually matched in a clamping manner.
And fifthly, welding the tab 3 by a laser welding machine, thereby forming the tab in one step. During welding, the number of rows of welding and the number of welding points of each row can be adjusted according to specific conditions on site; the primary welding area 4 of the pole ear 3 and the pole belt 1 is not less than 4 rows of welding points, and each row of welding points comprises a plurality of punctiform welding points. Meanwhile, the welding energy can be adjusted according to the actual situation.
It should be understood that the above-described embodiments of the present invention are merely examples for illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. There is no need or no way to give poor examples of all embodiments. And such obvious changes and modifications which are within the spirit of the invention are deemed to be covered by the present invention.
Claims (6)
1. A tab welding process of a nickel-based high-energy battery is characterized by comprising the following steps: the method comprises the following specific steps:
firstly, a nickel-based material belt is subjected to treatment such as slurry drying and rolling to form a polar belt (1) of the nickel-based high-energy battery;
secondly, the polar band (1) of the nickel-based high-energy battery is sent to a laser welding area of laser welding equipment by a mechanical positioning mechanism;
thirdly, a nickel base material strip welding area (2) which is not added with slurry and is modified is reserved in advance on the pole strip (1), and the tab (3) to be welded is taken out of the nickel base material strip welding area (2) placed on the pole strip (1) by a manipulator;
fourthly, fixing the tab (3) to be welded by using a positioning device;
fifthly, welding the electrode lug (3) by using welding equipment in a laser mode, and thus forming in one step.
2. The tab welding process of the nickel-based high-energy battery as claimed in claim 1, wherein: the width of the nickel-based material belt welding area (2) is matched with the width of the tab (3).
3. The tab welding process of the nickel-based high-energy battery as claimed in claim 1, wherein: the positioning device for fixing the tab (3) to be welded is hollow, so that one-time welding by laser is facilitated.
4. The tab welding process of the nickel-based high-energy battery as claimed in claim 1, wherein: the welding equipment is a laser welding machine, and the number of rows of welding and the number of welding points of each row can be adjusted according to the specific situation on site during welding; meanwhile, the welding energy can be adjusted according to the actual situation.
5. The tab welding process of the nickel-based high-energy battery as claimed in claim 1, wherein: the number of rows of welding points of the primary welding area (4) of the pole lug (3) and the pole belt (1) is not less than 4, and each row of welding points comprises a plurality of point-shaped welding points.
6. The tab welding process of the nickel-based high-energy battery as claimed in claim 1, wherein: the nickel-based material belt welding area (2) is provided with a plurality of uniformly distributed circular protrusions (6), the tab (3) is provided with a plurality of uniformly distributed circular grooves, and the circular protrusions (6) and the circular grooves are mutually matched in a clamping manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011322561.5A CN112518119A (en) | 2020-11-23 | 2020-11-23 | Tab welding process of nickel-based high-energy battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011322561.5A CN112518119A (en) | 2020-11-23 | 2020-11-23 | Tab welding process of nickel-based high-energy battery |
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| Publication Number | Publication Date |
|---|---|
| CN112518119A true CN112518119A (en) | 2021-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011322561.5A Pending CN112518119A (en) | 2020-11-23 | 2020-11-23 | Tab welding process of nickel-based high-energy battery |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102142529A (en) * | 2011-01-28 | 2011-08-03 | 福建南平南孚电池有限公司 | Method for manufacturing anode structure of lithium-iron disulfide battery |
| CN104722918A (en) * | 2015-02-16 | 2015-06-24 | 徐象华 | Nickel-base high energy battery electrode tab welding process |
| CN105261726A (en) * | 2015-10-13 | 2016-01-20 | 浙江超威创元实业有限公司 | Positive tab connection structure of battery and welding method |
| CN106624361A (en) * | 2016-12-28 | 2017-05-10 | 远东福斯特新能源有限公司 | Laser welding tool for new energy resource power battery connecting piece |
| CN209822770U (en) * | 2019-05-21 | 2019-12-20 | 宁德新能源科技有限公司 | Pole piece and battery with same |
-
2020
- 2020-11-23 CN CN202011322561.5A patent/CN112518119A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102142529A (en) * | 2011-01-28 | 2011-08-03 | 福建南平南孚电池有限公司 | Method for manufacturing anode structure of lithium-iron disulfide battery |
| CN104722918A (en) * | 2015-02-16 | 2015-06-24 | 徐象华 | Nickel-base high energy battery electrode tab welding process |
| CN105261726A (en) * | 2015-10-13 | 2016-01-20 | 浙江超威创元实业有限公司 | Positive tab connection structure of battery and welding method |
| CN106624361A (en) * | 2016-12-28 | 2017-05-10 | 远东福斯特新能源有限公司 | Laser welding tool for new energy resource power battery connecting piece |
| CN209822770U (en) * | 2019-05-21 | 2019-12-20 | 宁德新能源科技有限公司 | Pole piece and battery with same |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210319 |
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| RJ01 | Rejection of invention patent application after publication |