CN206824853U - A kind of welder of laminated battery lug - Google Patents
A kind of welder of laminated battery lug Download PDFInfo
- Publication number
- CN206824853U CN206824853U CN201720656436.5U CN201720656436U CN206824853U CN 206824853 U CN206824853 U CN 206824853U CN 201720656436 U CN201720656436 U CN 201720656436U CN 206824853 U CN206824853 U CN 206824853U
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- CN
- China
- Prior art keywords
- connecting rod
- handle
- clamping fixture
- fixture seat
- shaft hole
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- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a kind of welder of laminated battery lug, including base, clamping fixture seat, cover plate, pressure handle；Clamping fixture seat top is provided with inclusion holding tank and two lug holding tanks, and each lug holding tank is further opened with passing through hole vertically through the weld nest of clamping fixture seat with inclusion holding tank connecting place；The front end of cover plate is provided with two and distinguishes corresponding cover plate briquetting by hole with the weld nest of clamping fixture seat, the front side of each cover plate briquetting lower surface and rear side are respectively provided with a forward and backward pressing plate extended straight down, and each cover plate briquetting is additionally provided with a soldering tip via being used for through soldering tip penetrate vertically and between forward and backward pressing plate.By this welder, the direct effect of soldering tip is avoided, foil is not forced damage, and because the soldering tip via of briquetting is spacing, drawing damage caused by overvoltage will not be produced；Welding energy is homogeneous, will not produce weldering and split；Fluctuation will not be produced during soldering polar ear causes that weldering is split and rosin joint is bad.
Description
Technical field
It the utility model is related to a kind of lithium ion battery and manufacture device, more particularly to a kind of lamination lithium ion power electricity
The tab welding device in pond.
Background technology
Lithium ion battery is due to having the characteristics that operating voltage is high, energy density is big, security is good, light weight, pollution-free
And it is extensively studied and uses.Under environment and Pressure on Energy, at present country energetically support regeneration, clean energy resource research with
Development, especially on current automobile using electrokinetic cell, country constantly puts into effect preferential policy, foundation construction facility, makes lithium ion
Become one of developing direction most competed.
Flexible packing lithium ion battery energy density is big, has a safety feature, the flexible packaged battery of multilayer pole piece structure laminar
Pond has preferable electric conductivity, higher high rate performance and good cycle performance, is particularly suitable for great-capacity power battery, especially
It is applied to dynamic field.Tab welding mainly uses ultrasonic bonding at present, and foil is connected with lug.Ultrasonic bonding is
15~20KHz high frequency electrics are converted into by 50Hz low-frequency currents, high-frequency electrical energy is converted into machinery by bonding machine transducing head and shaken
Energy makes to form friction between metal surface body surface and oxide scatter not under certain static pressure effect
Change and interpenetrate phase counterdiffusion between a kind of same metal or dissimilar metal surface molecular of the metallographic structure of its own
Solid-phase welding method, metal surface reaches fusing point in welding process, has safe operation, without solder flux, heat disappears
Low, pollution-free, good conductivity is consumed, the features such as efficiency high.
Tab welding is mainly by processes such as lug prewelding, tab cutting, the whole weldering of lug, lug shapings at present, due to pre-
Pole piece is in free state before weldering, so generally relatively weldering is high eventually for prewelding difficulty.Subject matter is at present：First, elder generation is needed during prewelding
Foil certain pressure is awarded by soldering tip, foil is pressed, then starts to weld, during it is easily big due to pushing speed and pressure
Minor swing causes foil to damage；2nd, soldering tip and pole piece contact position and formation state difference, easily cause to weld when welding starts
Crackle；3rd, eventually weldering when, because soldering tip and prewelding print contact surface out-of-flatness or foil have fold, easily cause weldering to be split or empty
Weldering.
The content of the invention
The utility model aims to solve the problem that current ultrasonic bond positioning is inaccurate, is also easy to produce the situation of foil damage and crackle.
Technical scheme provided by the utility model is：
A kind of welder of laminated battery lug, it is characterised in that：Including base, clamping fixture seat, cover plate, pressure handle；
The pressure handle installing zone that the clamping fixture seat positioned at middle part lays area and the installation pressure handle positioned at both sides, folder are provided with base
Have seat and lay left and right limited block of the area including being located at two sides；
Clamping fixture seat top is provided with the inclusion holding tank for accommodating lamination bag and two poles for accommodating foil and lug
Ear holding tank, each lug holding tank are further opened with passing through hole vertically through the weld nest of clamping fixture seat with inclusion holding tank connecting place；
The front end of cover plate is provided with two and distinguishes corresponding cover plate briquetting, each cover plate briquetting by hole with the weld nest of clamping fixture seat
The front side of lower surface and rear side are respectively provided with a forward and backward pressing plate extended straight down, and each cover plate briquetting is additionally provided with one and passed through vertically
Logical and between forward and backward pressing plate the soldering tip via being used for through soldering tip.
Further, clamping fixture seat lays the neck block that area is horizontally placed between left and right limited block, and clamping fixture seat bottom offers correspondingly
In the neck of the neck block of base.
Further, two front limited blocks are additionally provided with the inclusion holding tank leading edge of clamping fixture seat.
Further, the arranged on left and right sides of the pedestal of clamping fixture seat and rear side are respectively provided with a dress where the inclusion holding tank of clamping fixture seat
Notch is unloaded, and the position that opens up for loading and unloading notch avoids neck.
Further, pressure handle includes pedestal, handle, straight connecting rod, L-type connecting rod and depression bar；
Pedestal is used to fix with base；Pedestal is provided with former and later two be hinged projections for being respectively provided with pin shaft hole, and two be hinged
Left between projection and avoid space；
Handle includes handle body and what is obliquely extended tiltedly stretches body；That tiltedly stretches body is proximally and distally respectively provided with a bearing pin
Hole；
The both ends of straight connecting rod are also respectively provided with a pin shaft hole；Straight connecting rod is made up of the symmetrical straight connecting rod piece of two panels；
L-type connecting rod includes perpendicular cross-bar body and vertical pole body；Vertical pole body is proximally and distally also respectively provided with a pin shaft hole；
L-type connecting rod is made up of the symmetrical L-type connecting rod piece of two panels；
The rear be hinged raised pin shaft hole of pedestal is hinged by the pin shaft hole of bearing pin and one end of straight connecting rod；
The other end of straight connecting rod and handle tiltedly stretch body proximally by hinge；And the rear be hinged raised and handle of pedestal
The near-end for tiltedly stretching body is respectively positioned between the two panels straight connecting rod piece of straight connecting rod；
The distal end articulated that the preceding be hinged raised pin shaft hole of pedestal passes through bearing pin and L-type connecting rod vertical pole body；
The distal end that the near-end of L-type connecting rod vertical pole body then tiltedly stretches body with handle the distal end of body is tiltedly stretched by hinge, handle
And it is hinged before pedestal raised between the two panels L-type connecting rod piece of L-type connecting rod vertical pole body；
The direction of the cross-bar body of L-type connecting rod is opposite with the direction of the handle body of handle；
Depression bar is fixed in the cross-bar body of L-type connecting rod vertically.
Further, the pin shaft hole pitch-row at the both ends of straight connecting rod tiltedly stretches near, distal end pin shaft hole pitch-row the length of body with handle
Sum, more than the near-end pin shaft hole of vertical pole body when L-type connecting rod vertical pole body is moved to perpendicular to pedestal and be hinged projection after pedestal
Pin shaft hole pitch-row, and the pin joint of the handle near-end and straight connecting rod of tiltedly stretching body is located at the near-end pin shaft hole and pedestal of vertical pole body
The lower section of line between raised pin shaft hole is hinged afterwards.
Further, when L-type connecting rod vertical pole body is moved to perpendicular to pedestal, handle, at its lower end face is upper with the be hinged projection of base
End surface offsets.
Relative to prior art, the utility model has the advantage that：
First foil pressing is adjacent to by cover plate briquetting before prewelding, then welded, avoids the direct effect of soldering tip, paper tinsel
Material is not forced damage, and because the soldering tip via of briquetting is spacing, drawing damage caused by overvoltage will not be produced；2nd, before prewelding, foil
Fitting is pushed down by cover plate, soldering tip directly falls in and welded on foil, and energy is homogeneous, will not produce weldering and split；When the 3rd, welding eventually,
Because prewelding foil is smooth, cover plate pushes down lug and foil, is in close contact between the two, and will not produce fluctuation during soldering polar ear leads
Cause weldering splits and rosin joint is bad.
Brief description of the drawings
Form a part of accompanying drawing of the present utility model to be used for providing further understanding to of the present utility model, this practicality is new
The schematic description and description of type is used to explain the utility model, does not form to improper restriction of the present utility model.
In accompanying drawing：
Fig. 1 is the structural representation for the state that welder has installed lamination bag 5；
Fig. 2 is the structural representation of base 1；
Fig. 3 is the structural representation of clamping fixture seat 2, and direction indicated by arrow is front in figure；
Fig. 4 is the structural representation of cover plate 3；
Fig. 5 is the structural representation of single pressure handle 4；
Fig. 6 is the configuration schematic diagram of pressure handle main components；
Fig. 7 is welding job view；
Fig. 8 is the principle schematic that cover plate briquetting clamps thing to be welded with weld nest.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the utility model can
To be mutually combined.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than instruction
Or imply that signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore be not understood that
For to limitation of the present utility model.In addition, term " first ", " second " etc. are only used for describing purpose, and it is not intended that instruction
Or imply relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", " second " etc. are defined
Feature can express or implicitly include one or more this feature.In description of the present utility model, unless separately
It is described, " multiple " are meant that two or more.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, on being understood by concrete condition
State concrete meaning of the term in the utility model.
Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in figure 1, this welder includes base 1, clamping fixture seat 2, cover plate 3, pressure handle 4；
As shown in Fig. 2 the clamping fixture seat being provided with base 1 positioned at middle part lays area and the pressure handle installing zone positioned at both sides
14, clamping fixture seat, which lays area, includes the left and right limited block (11,12) positioned at two sides and horizontal neck block 13；
As shown in figure 3, the bottom of clamping fixture seat 2 offers the neck 23 of the neck block 13 of corresponding base 1, top is provided with for holding
Receive lamination bag 1 inclusion holding tank 21 and two lug holding tanks 22 for accommodating foil and lug, each lug holding tank
22 are further opened with passing through hole 24 vertically through the weld nest of clamping fixture seat with the connecting place of inclusion holding tank 21；The leading edge of inclusion holding tank 21
Place is additionally provided with two front limited blocks 23；Pick and place lamination bag for convenience, left and right the two of the pedestal of the place clamping fixture seat of inclusion holding tank 21
Side and rear side are respectively provided with a handling notch 211, and the position that opens up for loading and unloading notch 211 avoids neck 23.
As shown in figure 4, the front end of cover plate 3 is provided with two distinguishes corresponding cover plate pressure with the weld nest of clamping fixture seat 2 by hole 24
Block 31, the front side of each lower surface of cover plate briquetting 31 and rear side are respectively provided with a forward and backward pressing plate extended straight down (33,34),
Each cover plate briquetting 31 is additionally provided with a weldering being used for through soldering tip penetrate vertically and between forward and backward pressing plate (33,34)
Head via 32.
As shown in Figure 5 and Figure 6, pressure handle 4 includes pedestal 41, handle 42, straight connecting rod 43, L-type connecting rod 44 and depression bar 45；
Pedestal 41 is used to fix by spiral with the pressure handle installing zone 14 of base 1；Pedestal 41 is respectively opened provided with former and later two
Have be hinged raised (411,412) of pin shaft hole, left between two be hinged projections and avoid space 413；
Handle 42 includes handle body 421 and what is obliquely extended tiltedly stretches body 422；Tiltedly stretch the near-end of body (i.e. and handle body
Close to one end) 4221 and distal end 4222 be respectively provided with a pin shaft hole；
The both ends of straight connecting rod 43 are also respectively provided with a pin shaft hole；The straight connecting rod of the present embodiment is by the symmetrical straight connecting rod piece group of two panels
Into；
L-type connecting rod 44 includes perpendicular cross-bar body 441 and vertical pole body 422；The near-end of vertical pole body is (i.e. relative with cross-bar body
Close one end) and distally also respectively it is provided with a pin shaft hole；The L-type connecting rod of the present embodiment is made up of the symmetrical L-type connecting rod piece of two panels；
The pin shaft hole of rear be hinged raised (412) of pedestal 41 is hinged by bearing pin and the pin shaft hole of one end of straight connecting rod 43；
The other end of straight connecting rod 43 and handle 42 tiltedly stretch body 422 proximally by hinge；And pedestal 41 is rear be hinged
The near-end that raised (412) and handle 42 tiltedly stretch body 422 is respectively positioned between the two panels straight connecting rod piece of straight connecting rod 43；
The distal end articulated that the pin shaft hole of preceding be hinged raised (411) of pedestal 41 passes through bearing pin and the vertical pole body of L-type connecting rod 44；
The near-end of the vertical pole body of L-type connecting rod 44 then tiltedly stretches the distal end of body 422 by hinge with handle 42, and handle 42 is oblique
The distal end of body 422 and preceding be hinged raised the 411 of pedestal 41 are stretched between the two panels L-type connecting rod piece of the vertical pole body of L-type connecting rod 44；
And the direction of the cross-bar body 441 of L-type connecting rod 44 is opposite with the direction of the handle body 421 of handle 42 (towards runing counter to)；
And the pin shaft hole pitch-row at the both ends of straight connecting rod 43 tiltedly stretches near, distal end pin shaft hole pitch-row the length of body 422 with handle 42
Sum is spent, after the near-end pin shaft hole of vertical pole body when the vertical pole body of L-type connecting rod 44 is moved to perpendicular to pedestal 41 and pedestal 41
The pitch-row of the pin shaft hole of be hinged projection (412), and the pin joint of the near-end and straight connecting rod 43 of tiltedly stretching body 422 of handle 42 is located at vertical pole
The lower section of line between the pin shaft hole of projection (412), the lower surface of handle 42 and bottom are hinged after the near-end pin shaft hole and pedestal 41 of body
Seat is hinged raised upper end and offseted；
Depression bar 45 is fixed in the cross-bar body 441 of L-type connecting rod 44 vertically by fasteners such as nuts.
When the handle body 421 of handle 42 is lifted up, drive the cross-bar body 441 of L-type connecting rod 44 together with depression bar 45 also to
On lift；Handle body 421 is pressed downward, drives the cross-bar body 441 of L-type connecting rod 44 also to be pressed downwards together with depression bar 45, works as straight connecting rod
After critical potential is spent in the hinged place for the near-end that 43 other end tiltedly stretches body 422 with handle 42 downwards, due to the lower surface of handle 42 with
Base is hinged projection and offseted so that and depression bar 45 is pressed object to jack up below by resistance straight down, prevention depression bar 45,
Namely provide the locking of 45 times pressure of depression bar.
The operation principle of this welder：
Foil welds：Lamination bag 5 is put into the inclusion holding tank 21 of clamping fixture seat 2, clamping fixture seat 2 is placed on base 1, is passed through
Position of the clamping fixture seat 2 on base 1 is fixed in the cooperation screens of neck block 13 and neck 23, covers cover plate 3, cover plate briquetting
31 forward and backward pressing plate (33,34) pushes down pole piece foil (as shown in Figure 8) from top, and weld nest 10 is then in supported underneath pole piece foil；
The leading edge of cover plate 3 props up the front limited block 23 of clamping fixture seat 2, and both sides prop up the left and right limited block (11,12) of base, pressed in pressure
Cover plate, clamping fixture seat are fixed position 7, the plumb joint of soldering tip 9 stretches into soldering tip via 32 and the foil compressed is surpassed
Sound wave welds；
Lug welds with foil：Lug is cut to qualified size, lug is then put into the lug holding tank 22 of clamping fixture seat 2,
Lamination bag 5 is put into the inclusion holding tank 21 of clamping fixture seat 2, clamping fixture seat 2 is placed on 3 on base, covers cover plate 3, the front of cover plate 3
Edge props up the front limited block 23 of clamping fixture seat 2, and both sides prop up the left and right limited block (11,12) of base, the forward and backward pressure of cover plate briquetting 31
Plate (33,34) pushes down pole piece foil and lug from top, and then pressure handle 7 keeps lock pressure to weld nest 10 in supported underneath, pressure；Weldering
First 9 plumb joint stretches into soldering tip via 32 and the material compressed is welded.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in
Protection domain within.
Claims (7)
- A kind of 1. welder of laminated battery lug, it is characterised in that：Including base, clamping fixture seat, cover plate, pressure handle；The pressure handle installing zone that the clamping fixture seat positioned at middle part lays area and the installation pressure handle positioned at both sides, clamping fixture seat are provided with base Laying area includes being located at the left and right limited block of two sides；Clamping fixture seat top is provided with the inclusion holding tank for accommodating lamination bag and two lugs for accommodating foil and lug hold Receive groove, each lug holding tank is further opened with passing through hole vertically through the weld nest of clamping fixture seat with inclusion holding tank connecting place；The front end of cover plate is provided with two and distinguishes corresponding cover plate briquetting, each cover plate briquetting following table by hole with the weld nest of clamping fixture seat The front side in face and rear side be respectively provided with a forward and backward pressing plate extended straight down, and each cover plate briquetting is additionally provided with one and penetrated vertically And the soldering tip via being used for through soldering tip between forward and backward pressing plate.
- 2. the welder of laminated battery lug according to claim 1, it is characterised in that：Clamping fixture seat is laid area and is horizontally placed on Neck block between left and right limited block, clamping fixture seat bottom offer the neck of the neck block corresponding to base.
- 3. the welder of laminated battery lug according to claim 1, it is characterised in that：The inclusion holding tank of clamping fixture seat Two front limited blocks are additionally provided with leading edge.
- 4. the welder of laminated battery lug according to claim 1, it is characterised in that：The inclusion holding tank of clamping fixture seat The arranged on left and right sides and rear side of the pedestal of place clamping fixture seat are respectively provided with a handling notch, and the position that opens up for loading and unloading notch avoids Neck.
- 5. the welder of laminated battery lug according to claim 1, it is characterised in that：Pressure handle include pedestal, handle, Straight connecting rod, L-type connecting rod and depression bar；Pedestal is used to fix with base；Pedestal is provided with former and later two be hinged projections for being respectively provided with pin shaft hole, two be hinged projections Between leave avoid space；Handle includes handle body and what is obliquely extended tiltedly stretches body；That tiltedly stretches body is proximally and distally respectively provided with a pin shaft hole；The both ends of straight connecting rod are also respectively provided with a pin shaft hole；Straight connecting rod is made up of the symmetrical straight connecting rod piece of two panels；L-type connecting rod includes perpendicular cross-bar body and vertical pole body；Vertical pole body is proximally and distally also respectively provided with a pin shaft hole；L-type Connecting rod is made up of the symmetrical L-type connecting rod piece of two panels；The rear be hinged raised pin shaft hole of pedestal is hinged by the pin shaft hole of bearing pin and one end of straight connecting rod；The other end of straight connecting rod and handle tiltedly stretch body proximally by hinge；And the rear be hinged raised and handle of pedestal is tiltedly stretched The near-end of body is respectively positioned between the two panels straight connecting rod piece of straight connecting rod；The distal end articulated that the preceding be hinged raised pin shaft hole of pedestal passes through bearing pin and L-type connecting rod vertical pole body；The near-end of L-type connecting rod vertical pole body then tiltedly stretches the distal end of body by hinge with handle, and handle tiltedly stretches distal end and the base of body The preceding be hinged projection of seat is between the two panels L-type connecting rod piece of L-type connecting rod vertical pole body；The direction of the cross-bar body of L-type connecting rod is opposite with the direction of the handle body of handle；Depression bar is fixed in the cross-bar body of L-type connecting rod vertically.
- 6. the welder of laminated battery lug according to claim 5, it is characterised in that：The bearing pin at the both ends of straight connecting rod Hole pitch-row tiltedly stretches near, distal end pin shaft hole pitch-row the length sum of body with handle, is moved to vertically more than when L-type connecting rod vertical pole body Be hinged the pitch-row of raised pin shaft hole after the near-end pin shaft hole of vertical pole body and pedestal when pedestal, and handle tiltedly stretch the near-end of body with The pin joint of straight connecting rod is located at the lower section that line between raised pin shaft hole is hinged after the near-end pin shaft hole and pedestal of vertical pole body.
- 7. the welder of laminated battery lug according to claim 6, it is characterised in that：When L-type connecting rod vertical pole body moves When moving to perpendicular to pedestal, handle, at its lower end face is hinged raised upper end with base and offseted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720656436.5U CN206824853U (en) | 2017-06-07 | 2017-06-07 | A kind of welder of laminated battery lug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720656436.5U CN206824853U (en) | 2017-06-07 | 2017-06-07 | A kind of welder of laminated battery lug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206824853U true CN206824853U (en) | 2018-01-02 |
Family
ID=60774346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720656436.5U Expired - Fee Related CN206824853U (en) | 2017-06-07 | 2017-06-07 | A kind of welder of laminated battery lug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206824853U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109366074A (en) * | 2018-11-30 | 2019-02-22 | 苏州宇量电池有限公司 | A kind of battery pole ear welder applied to lithium ion battery |
| CN110340549A (en) * | 2018-04-02 | 2019-10-18 | 通用汽车环球科技运作有限责任公司 | Clamping system and method for laser welding battery foil to battery tabs |
| CN110369852A (en) * | 2019-08-05 | 2019-10-25 | 珠海冠宇电池有限公司 | A kind of tab welding card slot and the method for carrying out tab welding using the card slot |
| CN115476095A (en) * | 2022-09-29 | 2022-12-16 | 天津力神电池股份有限公司 | Laminated battery V-shaped tab welding device |
-
2017
- 2017-06-07 CN CN201720656436.5U patent/CN206824853U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110340549A (en) * | 2018-04-02 | 2019-10-18 | 通用汽车环球科技运作有限责任公司 | Clamping system and method for laser welding battery foil to battery tabs |
| CN110340549B (en) * | 2018-04-02 | 2021-08-10 | 通用汽车环球科技运作有限责任公司 | Clamping system and method for laser welding battery foil to battery tab |
| US11095004B2 (en) | 2018-04-02 | 2021-08-17 | GM Global Technology Operations LLC | Clamping system and method for laser welding battery foils to a battery tab |
| CN109366074A (en) * | 2018-11-30 | 2019-02-22 | 苏州宇量电池有限公司 | A kind of battery pole ear welder applied to lithium ion battery |
| CN109366074B (en) * | 2018-11-30 | 2021-04-13 | 苏州宇量电池有限公司 | Be applied to lithium ion battery's battery tab welding set |
| CN110369852A (en) * | 2019-08-05 | 2019-10-25 | 珠海冠宇电池有限公司 | A kind of tab welding card slot and the method for carrying out tab welding using the card slot |
| CN115476095A (en) * | 2022-09-29 | 2022-12-16 | 天津力神电池股份有限公司 | Laminated battery V-shaped tab welding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180102 Termination date: 20200607 |