CN207038612U - A kind of flexible package stack type lithium ion battery and its lug - Google Patents
A kind of flexible package stack type lithium ion battery and its lug Download PDFInfo
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- CN207038612U CN207038612U CN201720322912.XU CN201720322912U CN207038612U CN 207038612 U CN207038612 U CN 207038612U CN 201720322912 U CN201720322912 U CN 201720322912U CN 207038612 U CN207038612 U CN 207038612U
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- lamination body
- segment
- paragraph
- lug
- lithium ion
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- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 34
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 238000003475 lamination Methods 0.000 claims abstract description 91
- 238000003466 welding Methods 0.000 claims abstract description 31
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 18
- 239000002985 plastic film Substances 0.000 claims abstract description 18
- 229920006255 plastic film Polymers 0.000 claims abstract description 18
- 239000003292 glue Substances 0.000 claims description 13
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 24
- 238000005538 encapsulation Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 6
- 230000007306 turnover Effects 0.000 description 17
- 238000000034 method Methods 0.000 description 11
- 230000004888 barrier function Effects 0.000 description 5
- 230000000717 retained effect Effects 0.000 description 5
- 229910000679 solder Inorganic materials 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009991 scouring Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009831 deintercalation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model provides a kind of flexible package stack type lithium ion battery and its lug, wherein, the lug includes：Orthogonal first paragraph and second segment, the first paragraph are provided with tab, and the second segment is used to weld with the pole piece portion of leaning out being located on lamination body, and is bonded with the tight of lamination body.The utility model passes through the ingehious design to lug shape, on the basis of new material and increase excessive cost is not introduced, reduce battery pole ear welding and assembling height, improve battery design height dimension utilization rate, improving battery allows design thickness, realizing that double hole aluminum plastic films encapsulation design simultaneously improves finished appearance, reduces the combo problem in parallel that may be brought in practical application, suitable for battery is automatic, semi-automatic and manual mode produces.
Description
Technical field
The utility model is related to technical field of lithium ion, more particularly to a kind of flexible package stack type lithium ion battery and
Its lug.
Background technology
Lithium ion battery is a kind of secondary cell（Rechargeable battery）, it rely primarily on lithium ion Li+ positive pole and negative pole it
Between it is mobile come work.In charge and discharge process, Li+ comes and goes insertion and deintercalation between two electrodes：Li+ takes off from positive pole during charging
It is embedding, negative pole is embedded in by electrolyte, negative pole is in rich lithium state；It is then opposite during electric discharge.Battery, which typically uses, contains elemental lithium
Material is the representative of modern high performance battery as electrode.Lithium ion battery is distinguished by internal structure, there is two kinds of winding and lamination
Mode.The former fixes the positive and negative plate of strip and barrier film by winding method；The latter be sheet positive and negative plate and every
Film stacks gradually to be formed.
Fig. 1 show the structure of existing flexible package stack type lithium ion battery, the elongated rectangular shape shape provided with tab 2
Lug 1 leans out portion 31 with the pole piece being located on lamination body 3 and welded in welding region 32, makes the lug 1 of elongated rectangular shape shape
The vertical top 30 for protruding from lamination body 3, so as to realize the assembling of lug 1 and lamination body 3.But said structure
Problems be present：
（1）Tab welding fixation problem：
The weighting typically bigger than normal of lug 1 that lamination process uses, weld if processing is not fixed in concerned process steps, hold
Easily occur waving in product sequence transfer and operating process, rock, cause the damage of pole piece layers of foil and spacing positioning change, it is especially right
Semi-automatic, manual production quality has a negative impact.
（2）Tab welding height problem：
The general capacity of lithium ion battery of lamination process is bigger than normal, and collector needs to carry big electric current, so tab welding
Region area is bigger than normal；Simultaneously solder joint need and the top 30 of lamination body and tab 2 between keep certain security fault-tolerance away from
From, avoid weld operation injure both, conventional tab welding height g2 is close to 10 millimeters, and these spaces are set to battery capacity
Meter has no to contribute.
（3）Battery outward appearance buckling problems：
Because tab welding height g2 is higher, the resultant battery of production is welded in space at it there is aluminum plastic film Folding Deformation
The problem of, the attractive in appearance of battery is have impact on to a certain extent.
Utility model content
Technical problem to be solved in the utility model is, there is provided one kind can improve battery size utilization rate and volume energy
The flexible package stack type lithium ion battery and its lug of metric density.
In order to solve the above-mentioned technical problem, the utility model provides a kind of lug of flexible package stack type lithium ion battery,
Including：Orthogonal first paragraph and second segment, the first paragraph are provided with tab, and the second segment is used for being located at lamination
The pole piece portion of leaning out welding on body, and be bonded with the tight of lamination body.
Wherein, the first paragraph forms inverted T-shaped with the second segment, and the second segment is bent to form epimere overlapping up and down
And hypomere, the hypomere are used to weld with the pole piece portion of leaning out being located on lamination body, and pasted with the tight of lamination body
Close, the epimere and the first paragraph vertical connection.
Wherein, the thickness of of length no more than lamination body of the hypomere, the joint of the first paragraph and the epimere
At 1/2 thickness to 2/3 thickness of lamination body.
Wherein, the first paragraph forms L-shaped with the second segment, and the joint of the first paragraph and the second segment is located at
The top edge of lamination body, the thickness of of length no more than lamination body of the second segment.
Wherein, the second segment and pole piece lean out the welding region in portion and are enclosed with high-temp glue.
Wherein, the second segment is fixed on the top of lamination body by high-temp glue.
The utility model also provides a kind of flexible package stack type lithium ion battery, including：Lug and lamination body, it is described folded
Piece body leans out portion provided with pole piece, and the lug includes orthogonal first paragraph and second segment, and the first paragraph is provided with pole
Ear glue, the second segment welds with the pole piece portion of leaning out, and is bonded with the tight of the lamination body.
Wherein, the first paragraph forms inverted T-shaped with the second segment, and the second segment is bent to form epimere overlapping up and down
And hypomere, the hypomere and the pole piece portion of leaning out are welded, and be bondeds with the tight of the lamination body, the epimere and
The first paragraph vertical connection.
Wherein, the thickness of of length no more than lamination body of the hypomere, the phase of the first paragraph and the epimere
Place is met at 1/2 thickness to 2/3 thickness of the lamination body.
Wherein, the first paragraph forms L-shaped with the second segment, and the joint of the first paragraph and the second segment is located at
The top edge of the lamination body, the thickness of of length no more than lamination body of the second segment.
Wherein, the second segment and the pole piece lean out the welding region in portion and are enclosed with high-temp glue.
Wherein, the second segment is fixed on the top of the lamination body by high-temp glue.
Wherein, the thickness of the lamination body is more than 10 millimeters, the lamination body, the second segment and part tab
By double hole aluminum plastic film encapsulation.
Wherein, the thickness of the lamination body is less than or equal to 10 millimeters, the lamination body, the second segment and part
Tab is by singly cheating aluminum plastic film encapsulation.
The beneficial effect that the utility model is brought is, by the ingehious design to lug shape, is not introducing new material
On the basis of increase excessive cost, battery pole ear welding and assembling height is reduced, improves battery design height dimension utilization rate, improves electricity
Pond allows design thickness, realizes that pair hole aluminum plastic films encapsulation designs and improves finished appearance, reducing parallel connection in practical application may band
The combo problem come, suitable for battery is automatic, semi-automatic and manual mode produces.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of existing flexible package stack type lithium ion battery.
Fig. 2 is a kind of structural representation of flexible package stack type lithium ion battery of the utility model embodiment one.
Fig. 3-Fig. 6 is a kind of lug of flexible package stack type lithium ion battery of the utility model embodiment one and lamination body
Assemble flow schematic diagram.
Fig. 7 is a kind of structural representation of flexible package stack type lithium ion battery of the utility model embodiment two.
Fig. 8-Figure 10 is a kind of lug of flexible package stack type lithium ion battery of the utility model embodiment two and lamination sheet
The assemble flow schematic diagram of body.
Embodiment
The explanation of following embodiment is refer to the attached drawing, can be to the particular implementation implemented to example the utility model
Example.The direction and position term that the utility model is previously mentioned, for example, " on ", " under ", "front", "rear", "left", "right", " interior ", "
Outside ", " top ", " bottom ", " side " etc., only it is the direction or position of refer to the attached drawing.Therefore, the direction used and position term
It is to illustrate and understand the utility model, rather than the limitation to scope of protection of the utility model.
Refer to shown in Fig. 2, the utility model embodiment one provides a kind of flexible package stack type lithium ion battery, including：
Lug 1 and lamination body 3, the lamination body 3 lean out portion 31 provided with pole piece, and the lug 1 includes being mutually perpendicular to
First paragraph 11 and second segment 12, the first paragraph 11 is provided with tab 2, and the second segment 12 leans out portion 31 with the pole piece
Welding, and be brought into close contact with the top 30 of the lamination body 3.
Below in combination with the lug and lamination of flexible package stack type lithium ion battery in the present embodiment shown in Fig. 3-Fig. 6
The assemble flow of body, the structure of the present embodiment flexible package stack type lithium ion battery is specifically described.
First as shown in figure 3, the lug 1 of existing elongated rectangular shape shape carried out into bending process, first paragraph 11 and the are obtained
Two section 12, tab 2 is located on first paragraph 11, and second segment 12 further comprises epimere 121 and hypomere 122, in this stage epimere
121 and hypomere 122 be mutually perpendicular to, first paragraph 11 and the vertical connection of epimere 121, make lug 1 overall stepped.Wherein, epimere
121 length is set to d1.
Then welded as shown in figure 4, stair-stepping lug 1 is leant out into portion 31 with the pole piece on lamination body 3.With showing
Some positive welding（I.e. first paragraph 11 is vertical upward）Difference, the present embodiment are reversely welded lug 1, i.e. the of lug 1
One section 11 downwards, and the hypomere 122 of second segment 12 and pole piece are leant out into portion 31（Now for it is vertical upward）In welding region 32
Place carries out welding so as to which shape is integral, the hypomere 122 of second segment 12 be in it is vertical upward, epimere 121 then with lamination body
Top 30 is nearly at same level, and lug 1 is overall still stepped.The thickness of lamination body 3 is set to d.Need what is illustrated
It is that solder joint reduces the effective length retained after follow-up cut, after being also convenient for close proximity to the bending place of epimere 121 and hypomere 122
Continuous lug turnover.
Again as shown in figure 5, the lug 1 being welded is cut, unnecessary hypomere 122 is specially cut（Simultaneously
Pole piece including welding together leans out portion 31）.If the length d2 at the top 30 for protruding from lamination body 3 retained, this implementation
Example is to d2 length requirement, no more than the thickness d of lamination body 3.
In the welding of lug 1 and during cutting, burr projection is inevitably produced, the present embodiment uses high-temp glue pair
The part at the top 30 for protruding from lamination body 3 retained（Length is d2 part i.e. shown in Fig. 5）Wrapped up, avoid injuring
Positive and negative plate and barrier film, when being also possible to prevent resultant battery excessively stream（Such as short circuit）Internal solder joint heat conduction injures barrier film.
Then the turnover step of lug 1 is performed：Make the hypomere 122 of second segment 12 first towards the top 30 of lamination body 3
Turnover 90 clockwise, and be brought into close contact with it.It is actual when leaning out portion 31 because hypomere 122 is welded with pole piece, therefore turning down simultaneously
Superior pole piece leans out portion 31 and also together completes turnover, then position relationship from top to bottom is that hypomere 122, pole piece lean out portion 31 and lamination
The top 30 of body 3.Lug 1 is overall stepped before this, with the hypomere 122 of second segment 12 turnover and with lamination body 3
Top 30 be brought into close contact, the epimere 121 of second segment 12 then it is vertical upward, and first paragraph 11 is then parallel to the hypomere of second segment 12
122 and the top 30 of lamination body 3, now by the epimere 121 of second segment 12 towards the turnover 90 clockwise of hypomere 122, and and its
Up and down it is overlapping, be brought into close contact, drive first paragraph 11 turn down from horizontal direction for vertically upward, it is perpendicular with second segment 12, pass through
The length d1 of reasonable selection epimere 121, can make first paragraph 11 be erected to the top central region of lamination body 3, finally make lug 1
Form inverted T-shaped as shown in Figure 2.Tab welding in Fig. 2 is highly set to g2, height g=g1 in battery product design（Lamination
Body height）+g2（Tab welding height）, the present embodiment leans out the backstep welding of portion 31 by being bent to lug 1, and with pole piece
Connect, reduce tab welding height g2, so as to provide more design spaces to lamination body height g1.
Again as shown in fig. 6, after the completion of turnover, the second segment 12 of lug 1（Including now overlapped epimere 121 with
Section 122）The top 30 of lamination body 3 is fitted tightly over, therefore lamination sheet can be secured firmly to using high-temp glue 33
The top 30 of body 3, to avoid the unnecessary damage in transferred product and operating process.Then sealed using double hole aluminum plastic films
Dress, concrete operations are no different with existing way.
It should be noted that in the present embodiment, the length d1 of epimere 121 and the thickness d of lamination body 3 and the double holes of aluminum plastic film
Depth scale is relevant.Double hole depth scale=1:1 d1=d/2 design is advisable, double hole depth scale=1:2 d1=2d/3 are designed as
Preferably.Aluminum plastic film can be calculated by d and always cheat depth（Two scour hole depth summations）, but the depth in each punching hole can equally also may be used
With difference, it is therefore desirable to a depth scale.Double hole depth scales are actually limited by three factors：One is product design requirement
（The scouring depth on request if design requirement lug is at thickness 2/3）, one is the total hole depth calculated by d（Aluminum plastic film punching hole
Depth is bigger, stretcher strain is bigger, and corresponding structural strength is poorer, so general 1:1 pair of hole depth is optimal）, finally
It is also contemplated that d1 dimensional problem（The bigger turnover difficulty of processing of d1 and required precision are smaller, so needing to consider when d1 is too small
Similar 2/3 asymmetrical design）.Tab 2 is among two layers of aluminum plastic film after d1 is for ensuring that the final turnover of lug 1, is kept away
Stress dislocation causes quality bad when exempting from heat-sealing.Maximum length side is taken to calculate when double holes are unequal.In general, this reality
Applying the setting of d1 in example need to be such that first paragraph 11 and the joint of epimere 121 is located at 1/2 thickness to 2/3 thickness of lamination body 3.
The inverted T-shaped lug of the present embodiment is applied to thickness flexible package laminated battery plate monomer bigger than normal（Thickness is generally higher than
10 millimeters）, now because the limitation of aluminum plastic film scour hole depth can not use single hole to design, because when single hole scouring depth is more than 10 millimeters,
Conventional material insufficient strength is even damaged；And if cell thickness is too small, cause d1 too small, turnover technology difficulty is big,
It is low to produce qualification rate.
The present embodiment is by the ingehious design of inverted T-shaped lug, on the basis of new material and increase excessive cost is not introduced,
Battery pole ear welding and assembling height is reduced, improves battery design height dimension utilization rate, improving battery allows design thickness, realizes double holes
Aluminum plastic film encapsulation designs and improves finished appearance, the combo problem in parallel that may be brought in practical application is reduced, suitable for battery
Automatically the production of, semi-automatic and manual mode.
Referring again to shown in Fig. 7, the utility model embodiment two provides a kind of flexible package stack type lithium ion battery, with reality
Apply example one to compare, difference is the shape of lug and different from the assembling process of lamination body.In the present embodiment, lug 7
L-shaped is shaped as, its first paragraph 71 is vertical upward, and second segment 72 and first paragraph 71 are perpendicular, and tight with the top 30 of lamination body 3
Closely connected conjunction, position relationship from top to bottom are that second segment 72, pole piece lean out portion 31 and the top 30 of lamination body 3.
As shown in figure 8, different from embodiment one, the present embodiment does not carry out bending process to lug 7, but equally by lug 7
Reversely welded, i.e., second segment 72 and pole piece downwards, are leant out portion 31 by the first paragraph 71 of lug 7（It is now vertical court
On）Welding is carried out so as to which shape is integral in welding region.It should be noted that solder joint is close proximity to first paragraph 72 and second segment
72 bending place, the effective length retained after follow-up cut is reduced, be also convenient for follow-up lug turnover.
Again as shown in figure 9, the lug 7 being welded is cut, unnecessary second segment 72 is specially cut（Simultaneously
Pole piece including welding together leans out portion 31）.If the length d2 at the top 30 for protruding from lamination body 3 retained, this implementation
Example is to d2 length requirement, no more than the thickness d of lamination body 3.
In the welding of lug 1 and during cutting, burr projection is inevitably produced, the present embodiment equally uses high temperature
Part of the glue to the top 30 for protruding from lamination body 3 of reservation（Length is d2 part i.e. shown in Fig. 9）Wrapped up, avoided
Positive and negative plate and barrier film are injured, when being also possible to prevent resultant battery excessively stream（Such as short circuit）Internal solder joint heat conduction injures barrier film.
Then the turnover step of lug 7 is performed：Second segment 72 is set to lean out court of portion 31 together with the pole piece welded together first
Turn down 90 clockwise to the top 30 of lamination body 3, and be brought into close contact with it, position relationship from top to bottom be second segment 72,
Pole piece leans out portion 31 and the top 30 of lamination body 3.With second segment 72 turnover and closely pasted with the top 30 of lamination body 3
Close, first paragraph 71 is also horizontal direction from initial turnover downwards, is in the top 30 of second segment 72 and lamination body 3
Same level.Then first paragraph 71 is turned down 90 towards the top 30 of lamination body 3 clockwise again, makes first paragraph 71 from water
Square to turnover for it is vertical upward, it is perpendicular with the top 30 of second segment 72 and lamination body 3.Set because pole piece leans out portion 31
At the edge of top 30 of lamination body 3, after carrying out above-mentioned turnover, the joint of the first paragraph 71 and second segment 72 of lug 7 is located at
The edge of top 30 of lamination body 3, finally makes lug 7 form L-shaped as shown in Figure 7.Similar to embodiment one, the present embodiment leads to
Cross and lug 7 is bent, and lean out portion 31 with pole piece and reversely weld, tab welding height is reduced, so as to give lamination body
More design spaces are highly provided.
Again as shown in Figure 10, after the completion of turnover, the second segment 72 of lug 7 is fitted tightly over the top 30 of lamination body 3, because
This can be secured firmly to the top 30 of lamination body 3 using high-temp glue 33, to avoid in transferred product and operating process
Unnecessary damage.Then it is packaged using single hole aluminum plastic film, concrete operations are no different with existing way.
It should be noted that the L-shaped lug of the present embodiment is applied to the medium Soft Roll laminated batteries monomer of thickness（Generally
5 millimeters ~ 10 millimeters）, now aluminum plastic film can select single hole or double holes, but if lug position is with encapsulating if the double holes of selection
Position is different, causes encapsulation stress dislocation to cause quality bad.And if cell thickness is too big, aluminum plastic film scouring depth deficiency will be unable to
Realize single hole.
The present embodiment on the basis of new material and increase excessive cost is not introduced, is dropped by the ingehious design of L-shaped lug
Low battery pole ear welding and assembling height, improve battery design height dimension utilization rate, improving battery allows design thickness, realizes single hole aluminium
Plastic film encapsulation, which designs, simultaneously improves finished appearance, suitable for battery is automatic, semi-automatic and manual mode produces.
Above disclosed is only the utility model preferred embodiment, can not limit the utility model with this certainly
Interest field, therefore equivalent variations made according to the utility model claims still belong to the scope that the utility model is covered.
Claims (14)
- A kind of 1. lug of flexible package stack type lithium ion battery, it is characterised in that including：Orthogonal first paragraph and second Section, the first paragraph are provided with tab, and the second segment is used to weld with the pole piece portion of leaning out being located on lamination body, and with The tight fitting of lamination body.
- 2. lug according to claim 1, it is characterised in that the first paragraph forms inverted T-shaped with the second segment, described Second segment is bent to form overlapping up and down epimere and hypomere, and the hypomere is used to weld with the pole piece portion of leaning out being located on lamination body Connect, and be bonded with the tight of lamination body, the epimere and the first paragraph vertical connection.
- 3. lug according to claim 2, it is characterised in that the thickness of of length no more than lamination body of the hypomere, The joint of the first paragraph and the epimere is located at 1/2 thickness to 2/3 thickness of lamination body.
- 4. lug according to claim 1, it is characterised in that the first paragraph and the second segment form L-shaped, and described the The joint of one section and the second segment is located at the top edge of lamination body, of length no more than lamination body of the second segment Thickness.
- 5. according to the lug described in claim any one of 1-4, it is characterised in that the second segment leans out the welding in portion with pole piece Region is enclosed with high-temp glue.
- 6. according to the lug described in claim any one of 1-4, it is characterised in that the second segment is fixed on folded by high-temp glue The top of piece body.
- A kind of 7. flexible package stack type lithium ion battery, it is characterised in that including：Lug and lamination body, the lamination body Portion is leant out provided with pole piece, the lug includes orthogonal first paragraph and second segment, and the first paragraph is provided with tab, institute State second segment to weld with the pole piece portion of leaning out, and be bonded with the tight of the lamination body.
- 8. flexible package stack type lithium ion battery according to claim 7, it is characterised in that the first paragraph and described the Two sections of formation inverted T-shapeds, the second segment are bent to form overlapping up and down epimere and hypomere, and the hypomere leans out portion with the pole piece Welding, and be bonded with the tight of the lamination body, the epimere and the first paragraph vertical connection.
- 9. flexible package stack type lithium ion battery according to claim 8, it is characterised in that the length of the hypomere does not surpass The thickness of the lamination body is crossed, the joint of the first paragraph and the epimere is located at 1/2 thickness of the lamination body extremely At 2/3 thickness.
- 10. flexible package stack type lithium ion battery according to claim 7, it is characterised in that the first paragraph with it is described Second segment forms L-shaped, and the joint of the first paragraph and the second segment is located at the top edge of the lamination body, and described the The thickness of two sections of of length no more than lamination body.
- 11. according to the flexible package stack type lithium ion battery described in claim any one of 7-10, it is characterised in that described second The welding region that section leans out portion with the pole piece is enclosed with high-temp glue.
- 12. according to the flexible package stack type lithium ion battery described in claim any one of 7-10, it is characterised in that described second Section is fixed on the top of the lamination body by high-temp glue.
- 13. flexible package stack type lithium ion battery according to claim 8, it is characterised in that the thickness of the lamination body Degree is more than 10 millimeters, and the lamination body, the second segment and part tab are encapsulated by double hole aluminum plastic films.
- 14. flexible package stack type lithium ion battery according to claim 10, it is characterised in that the thickness of the lamination body Degree is less than or equal to 10 millimeters, and the lamination body, the second segment and part tab are encapsulated by singly cheating aluminum plastic film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720322912.XU CN207038612U (en) | 2017-03-30 | 2017-03-30 | A kind of flexible package stack type lithium ion battery and its lug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720322912.XU CN207038612U (en) | 2017-03-30 | 2017-03-30 | A kind of flexible package stack type lithium ion battery and its lug |
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| Publication Number | Publication Date |
|---|---|
| CN207038612U true CN207038612U (en) | 2018-02-23 |
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|---|---|---|---|
| CN201720322912.XU Active CN207038612U (en) | 2017-03-30 | 2017-03-30 | A kind of flexible package stack type lithium ion battery and its lug |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021195924A1 (en) * | 2020-03-31 | 2021-10-07 | 宁德新能源科技有限公司 | Battery cell structure and battery |
| CN115842093A (en) * | 2022-05-07 | 2023-03-24 | 宁德时代新能源科技股份有限公司 | Pole piece and manufacturing method thereof, electrode assembly and manufacturing method thereof, battery monomer and battery |
| WO2024109458A1 (en) * | 2022-11-24 | 2024-05-30 | 远景动力技术(江苏)有限公司 | Soft-pack cell, tab bending method for soft-pack cell, and battery pack |
-
2017
- 2017-03-30 CN CN201720322912.XU patent/CN207038612U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021195924A1 (en) * | 2020-03-31 | 2021-10-07 | 宁德新能源科技有限公司 | Battery cell structure and battery |
| CN115842093A (en) * | 2022-05-07 | 2023-03-24 | 宁德时代新能源科技股份有限公司 | Pole piece and manufacturing method thereof, electrode assembly and manufacturing method thereof, battery monomer and battery |
| CN115842093B (en) * | 2022-05-07 | 2024-01-05 | 宁德时代新能源科技股份有限公司 | Pole piece, manufacturing method, electrode assembly, manufacturing method, battery cell and battery |
| WO2024109458A1 (en) * | 2022-11-24 | 2024-05-30 | 远景动力技术(江苏)有限公司 | Soft-pack cell, tab bending method for soft-pack cell, and battery pack |
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Effective date of registration: 20211228 Address after: 511434 No. 36, Longying Road, Shilou Town, Panyu District, Guangzhou City, Guangdong Province Patentee after: GAC AION New Energy Vehicle Co.,Ltd. Address before: 510000 23 building, Cheng Yue mansion 448-458, Dongfeng Middle Road, Yuexiu District, Guangzhou, Guangdong. Patentee before: GUANGZHOU AUTOMOBILE GROUP Co.,Ltd. |