CN109719392A - A kind of battery pole piece welding device and welding method - Google Patents
A kind of battery pole piece welding device and welding method Download PDFInfo
- Publication number
- CN109719392A CN109719392A CN201910168654.8A CN201910168654A CN109719392A CN 109719392 A CN109719392 A CN 109719392A CN 201910168654 A CN201910168654 A CN 201910168654A CN 109719392 A CN109719392 A CN 109719392A
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- China
- Prior art keywords
- welded
- laser
- pole piece
- battery pole
- galvanometer
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Links
- 238000003466 welding Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 44
- 230000003287 optical effect Effects 0.000 claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 238000001179 sorption measurement Methods 0.000 claims description 11
- 239000011888 foil Substances 0.000 claims description 10
- 239000011159 matrix material Substances 0.000 claims description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 238000003475 lamination Methods 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 238000005476 soldering Methods 0.000 abstract description 2
- 239000005030 aluminium foil Substances 0.000 description 3
- 239000011889 copper foil Substances 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- 230000000649 photocoagulation Effects 0.000 description 2
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007723 die pressing method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Landscapes
- Laser Beam Processing (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The present invention provides a kind of battery pole piece welding device and welding methods, including laser, beam expanding lens, scanning galvanometer and the focusing field lens set gradually in optical path, the focusing field lens has conveyor module, the conveyor module includes horizontally disposed two driven pulleies, and the driven pulley is for conveying material to be welded.The beneficial effects of the present invention are: it provides a kind of for welding the laser soldering device of battery pole piece, the device is using ultraviolet nanosecond laser as light source, in welding, laser-formed heat affected area comparison conventional laser welding manner wants small, the intensity of material changes and brittleness change also can be smaller, improves the electric conductivity of battery electrode well, and battery electrode to be welded uses the mode of movement of driven pulley, flowing water wire bonding can be achieved, effectively improve production efficiency.
Description
Technical field
The present invention relates to a kind of welder technical field, a kind of battery pole piece welding device and welding side are referred in particular to
Method.
Background technique
It is related to a kind of metal foil welding procedure inside battery industry, consumer electronics industry etc..In traditional weldering
It connects in technique, the shortcomings that main method for using ultrasonic bonding, the method is that plumb joint has abrasion and wearing- in period can not
Control, once wearing, welding quality will decline to a great extent, and there are many defective products.On the other hand, traditional ultrasonic welding can squeeze
Die pressing product, after welding, product can unfold, and formation is pullled, and be easy to tear in shreds isolation film, so that short-circuit explosion occur, and swash
Such risk, therefore the method for proposing laser welding is not present in photocoagulation.
Summary of the invention
The technical problems to be solved by the present invention are: providing a kind of suitable for copper foil-nickel sheet or aluminium foil-aluminium flake battery pole piece
Laser micro welding connect RTR device and welding method.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows: a kind of battery pole piece welding device, including
Laser, beam expanding lens, scanning galvanometer and focusing field lens, the focusing field lens set gradually in optical path has conveying mould
Block, the conveyor module include horizontally disposed two driven pulleies, and the driven pulley is for conveying material to be welded.
Further, supporting module, the supporting module packet are additionally provided between two transmission pulleys of the conveyor module
Adsorption jig, support rod and cylinder are included, the adsorption jig is connect by support rod with the cylinder, and the adsorption jig is in gas
It can be moved up and down under the drive of cylinder.
Further, the material to be welded is the metal foil of upper and lower lamination setting and the combination of metallic matrix.
Further, the material to be welded is copper foil-nickel sheet combination or aluminium foil-aluminium flake combination.
Further, the laser is ultraviolet nanosecond laser, and the pulse width of the laser is 2-50ns.
Further, the scanning galvanometer includes X galvanometer and Y galvanometer, and the X galvanometer and Y galvanometer are set in turn in scanning
In optical path inside galvanometer, the X galvanometer is connected with X vibrating mirror driver, and the Y galvanometer is connected with Y vibrating mirror driver.
The invention further relates to a kind of battery pole piece welding methods, comprising steps of
Metal foil is stacked on metallic matrix, material to be welded is formed；
By transport of materials to be welded to workspace；
Laser is opened, material molten to be welded is welded.
Further, in the step of opening laser, material molten to be welded is welded, laser is with the traveling road of helix
Line treats welding material and carries out electric welding processing.
Further, in the step of opening laser, material molten to be welded is welded, laser is on material to be welded
The diameter of solder joint is 250-500um.
Further, after by transport of materials to be welded to workspace the step of, further include supported in workspace it is to be welded
The step of connecing material.
The beneficial effects of the present invention are: provide a kind of for welding the laser soldering device of battery pole piece, the device
Using ultraviolet nanosecond laser as light source, in welding, laser-formed heat affected area comparison conventional laser welding manner wants small,
The intensity of material changes and brittleness change also can be smaller, improves the electric conductivity of battery electrode, battery to be welded well
Electrode is using the mode of movement of driven pulley, it can be achieved that flowing water wire bonding, effectively improves production efficiency.
Detailed description of the invention
Specific structure of the invention is described in detail with reference to the accompanying drawing:
Fig. 1 is the overall structure diagram of battery pole piece welding device of the invention；
The ultraviolet nanosecond laser of 1-；2- beam expanding lens；3- scanning galvanometer；4- focuses field lens；5-；61- metal foil；62- metal
Matrix；7- cylinder；8- support rod；9- adsorption jig.
Specific embodiment
In order to describe the technical content, the structural feature, the achieved object and the effect of this invention in detail, below in conjunction with embodiment
And attached drawing is cooperated to be explained in detail.
Embodiment 1
Referring to Fig. 1, a kind of battery pole piece welding device, including set gradually in optical path ultraviolet nanosecond laser 1,
Beam expanding lens 2, scanning galvanometer 3 and focusing field lens 4, ultraviolet nanosecond laser 1 launch laser beam, the pulse width of the laser
For 2-50ns, welding precision is advantageously ensured that, which forms uniform collimated light beam after beam expander 2 expands, and puts down
Row light beam enters scanning galvanometer 3, exit direction of the scanning galvanometer 3 for changing laser, the collimated light beam projected by scanning galvanometer 3
After focusing field lens 4 and focusing, projects and focus under field lens, on the material to be welded on conveyor module, the material to be welded
For the metal foil 61 of upper and lower lamination setting and the combination of metallic matrix 62, it is preferred that the material to be welded is copper foil-nickel sheet group
It closes or aluminium foil-aluminium flake combines, between two transmission pulleys 5 of the conveyor module, be additionally provided with below material to be welded
Supporting module, the supporting module include adsorption jig 9, support rod 8 and cylinder 7, the absorption control 9 tools by support rod 8 with
The cylinder 7 connects, and the adsorption jig 9 can move up and down under the driving of cylinder 7, and when being welded, cylinder 7 is driven
Dynamic support rod jacks up 8 adsorption jigs 9 upwards, and the metal foil 61 of material to be welded and the fitting of metallic matrix 62 is made to be adsorbed on one
It rises, after the completion of welding, cylinder 7 drives support rod 8 to fall adsorption jig 9, and transmission pulley 5 will complete the material to be welded of welding
Laser welding range is removed, transmission pulley can be connected by the shaft of belt and driving motor, can also be with to realize transmission
It only plays a supporting role, transmits material to be welded and driven by the RTR device on other assembly lines.
The scanning galvanometer includes X galvanometer and Y galvanometer, and the X galvanometer and Y galvanometer are set in turn in inside scanning galvanometer
In optical path, the X galvanometer is deflected by the driving of X vibrating mirror driver, and the Y galvanometer is deflected by the driving of Y vibrating mirror driver,
Two galvanometer cooperation deflections, to realize the exit direction for changing incident laser.
As can be seen from the above description, the beneficial effects of the present invention are: it provides a kind of for welding the laser of battery pole piece
Welder, the device is using ultraviolet nanosecond laser as light source, and in welding, laser-formed heat affected area comparison tradition swashs
Photocoagulation mode wants small, and the intensity of material changes and brittleness change also can be smaller, improves the electric conductivity of battery electrode well
Can, battery electrode to be welded is using the mode of movement of driven pulley, it can be achieved that flowing water wire bonding, effectively improves production efficiency.
The invention further relates to a kind of battery pole piece welding methods, comprising steps of
Metal foil is stacked on metallic matrix, material to be welded is formed, the material to be welded can be copper foil-nickel sheet group
It closes or the combination of aluminium foil-aluminium flake, wherein copper foil/aluminium foil is upper, and nickel sheet/aluminium flake is under；
By material to be welded put conveyor module transport be transported to workspace focus field lens lower section, supporting module
Material to be welded is supported upwards, and the metal foil of material to be welded and metallic matrix fitting is made to be attached together；
Laser is opened, scanning galvanometer draws helix shape on material to be welded according to preset path, by laser
Solder joint, during laser spot is advanced, laser first removes the copper foil on material upper layer to be welded/aluminium foil, then to be welded
Nickel sheet/the aluminium flake for connecing material sublayer is heated, and so that the nickel aluminum molten slurry of lower layer is rolled and is come up and the copper foil on upper layer/aluminium foil melting
Together, fusion weld is realized after cooling, it is preferred that the diameter of a helix solder joint is 250-500um.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of battery pole piece welding device, it is characterised in that: including set gradually in optical path laser, beam expanding lens, sweep
It retouches galvanometer and focuses field lens, the focusing field lens has conveyor module, and the conveyor module includes horizontally disposed two biographies
Movable pulley, the driven pulley is for conveying material to be welded.
2. battery pole piece welding device as described in claim 1, it is characterised in that: two transmission pulleys of the conveyor module
Between be additionally provided with supporting module, the supporting module includes adsorption jig, support rod and cylinder, and the adsorption jig passes through support
Bar is connect with the cylinder, and the adsorption jig can be moved up and down in the case where the drive of cylinder is used.
3. battery pole piece welding device as claimed in claim 2, it is characterised in that: the material to be welded is that upper and lower lamination is set
The combination of the metal foil and metallic matrix set.
4. battery pole piece welding device as claimed in claim 3, it is characterised in that: the material to be welded is copper foil-nickel sheet
Combination or aluminium foil-aluminium flake combination.
5. battery pole piece welding device as claimed in claim 4, it is characterised in that: the laser is ultraviolet nanosecond laser
Device, the pulse width of the laser are 2-50ns.
6. battery pole piece welding device as claimed in claim 5, it is characterised in that: the scanning galvanometer includes X galvanometer and Y vibration
Mirror, the X galvanometer and Y galvanometer are set in turn in the optical path inside scanning galvanometer, and the X galvanometer is connected with X vibrating mirror driver,
The Y galvanometer is connected with Y vibrating mirror driver.
7. a kind of battery pole piece welding method, comprising steps of
Metal foil is stacked on metallic matrix, material to be welded is formed；
By transport of materials to be welded to workspace；
Laser is opened, material molten to be welded is welded.
8. battery pole piece welding method as claimed in claim 7, it is characterised in that: opening laser, material to be welded is melted
In the step of melting welding, laser treats welding material with the travelling route of helix and carries out electric welding processing.
9. battery pole piece welding method as claimed in claim 8, it is characterised in that: opening laser, material to be welded is melted
In the step of melting welding, spot size of the laser on material to be welded is 250-500um.
10. the battery pole piece welding method as described in claim 7-9 any one, it is characterised in that: by material to be welded
After the step of material transport to workspace, further include the steps that supporting material to be welded in workspace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910168654.8A CN109719392A (en) | 2019-03-06 | 2019-03-06 | A kind of battery pole piece welding device and welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910168654.8A CN109719392A (en) | 2019-03-06 | 2019-03-06 | A kind of battery pole piece welding device and welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109719392A true CN109719392A (en) | 2019-05-07 |
Family
ID=66301920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910168654.8A Pending CN109719392A (en) | 2019-03-06 | 2019-03-06 | A kind of battery pole piece welding device and welding method |
Country Status (1)
| Country | Link |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744521A (en) * | 2012-06-07 | 2012-10-24 | 江阴德力激光设备有限公司 | Device and method for pulse laser etching for double-faced conductive film layer on organic glass |
| CN106077953A (en) * | 2016-08-03 | 2016-11-09 | 武汉华工激光工程有限责任公司 | A kind of method and system that sheet metal is carried out nanosecond laser welding |
| CN107096920A (en) * | 2017-05-25 | 2017-08-29 | 华南理工大学 | A kind of non-average dual-beam synchronous scanning selective laser melting appartus and its light path synthetic method |
| CN207577687U (en) * | 2017-11-10 | 2018-07-06 | 深圳光韵达光电科技股份有限公司 | A kind of laser cutting system |
| CN108515263A (en) * | 2018-03-29 | 2018-09-11 | 东莞市力星激光科技有限公司 | A kind of burst disk method for laser welding of battery cover board of aluminum shell |
| CN210548838U (en) * | 2019-03-06 | 2020-05-19 | 英诺激光科技股份有限公司 | Battery pole piece welding device |
-
2019
- 2019-03-06 CN CN201910168654.8A patent/CN109719392A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744521A (en) * | 2012-06-07 | 2012-10-24 | 江阴德力激光设备有限公司 | Device and method for pulse laser etching for double-faced conductive film layer on organic glass |
| CN106077953A (en) * | 2016-08-03 | 2016-11-09 | 武汉华工激光工程有限责任公司 | A kind of method and system that sheet metal is carried out nanosecond laser welding |
| CN107096920A (en) * | 2017-05-25 | 2017-08-29 | 华南理工大学 | A kind of non-average dual-beam synchronous scanning selective laser melting appartus and its light path synthetic method |
| CN207577687U (en) * | 2017-11-10 | 2018-07-06 | 深圳光韵达光电科技股份有限公司 | A kind of laser cutting system |
| CN108515263A (en) * | 2018-03-29 | 2018-09-11 | 东莞市力星激光科技有限公司 | A kind of burst disk method for laser welding of battery cover board of aluminum shell |
| CN210548838U (en) * | 2019-03-06 | 2020-05-19 | 英诺激光科技股份有限公司 | Battery pole piece welding device |
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