CN107068926A - Battery bag and its aluminium wire welding procedure with aluminium wire - Google Patents
Battery bag and its aluminium wire welding procedure with aluminium wire Download PDFInfo
- Publication number
- CN107068926A CN107068926A CN201710137327.7A CN201710137327A CN107068926A CN 107068926 A CN107068926 A CN 107068926A CN 201710137327 A CN201710137327 A CN 201710137327A CN 107068926 A CN107068926 A CN 107068926A
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- Prior art keywords
- aluminium wire
- cell
- fluid confluence
- contact force
- hole
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
-
- 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
Abstract
Present invention is disclosed a kind of battery bag with aluminium wire and its aluminium wire welding procedure, battery bag includes upper and lower pallet, cell and fluid confluence, cell is sandwiched between upper and lower pallet, fluid confluence is connected on the outside of upper and lower pallet, and the both positive and negative polarity of cell is respectively connecting on upper and lower fluid confluence by aluminium wire；Aluminium wire welding procedure comprises the following steps, butt welding contact applies 4.5 ~ 7N contact force, then contact force is changed into 3.8 ~ 8N through 10 ~ 20ms, it is then brought into power and rises to 9.5 ~ 15N through 15 ~ 25ms, finally maintain contact force 90 ~ 150ms, a diameter of 250 ~ 400 μm of aluminium wire, the energy value of plumb joint is 70 ~ 100J.Battery bag provided by the present invention with aluminium wire, occur in cell abnormal, when causing actual output current more than limitation electric current, aluminium wire can fuse in very short time, so that the abnormal cell and fluid confluence disconnect, it is ensured that the security of battery bag, using the welding method of the present invention, welding is extremely firm, it is ensured that the stability of battery bag.
Description
Technical field
The present invention relates to a kind of battery bag with aluminium wire and its aluminium wire welding procedure, belong to lithium battery safety and energy storage neck
Domain.
Background technology
Compared with orthodox car, electric car has obvious advantage in terms of environmental protection.Waste pollution and noise pollution are interior
The big pollution of the two of combustion engine automobile.Electric car does not consume gasoline then, and no exhaust emission, low noise, radiation is small, is a kind of preferably clear
The clean vehicles.With the enhancing of the environmental consciousness of the mankind, the application of electric car is increasingly extensive, so that electronic vehicle electric power electric
Pond group is developed into an important problem.
Chinese patent 201110033309.7 discloses a kind of battery module and battery modules, including pallet, connection in series-parallel piece,
Collector and cell；Tray bottom is evenly arranged with multiple hole clippings, and multiple through holes are provided between hole clipping；Connection in series-parallel piece
It is fixedly installed on tray bottom；Collector is fixedly installed on the one or both sides of tray bottom, tight by pressing plate and connection in series-parallel piece
Close connection；The two poles of the earth of cell are each defined in the hole clipping of tray bottom setting；Two pallets are relatively fixed and are connected to one
Rise.The battery module have small volume, it is lightweight, with good ventilation effect the characteristics of, battery modules have adaptability, spirit
The characteristics of activity and stability are stronger, but the program and safeguard measure is not contained, if abnormal, cell occurs for cell
Output current can not find the problem in time when excessive, if vehicle is continuing with, there is great potential safety hazard；And if battery
When some in module or certain several cell break down, it is impossible to quickly determine that it is which cell breaks down,
It is not easy to maintenance.
The content of the invention
The purpose of the present invention is exactly in order to solve the above mentioned problem of prior art presence, so as to provide a kind of with aluminium wire
Battery bag and its aluminium wire welding procedure, with fuse of the aluminium wire as each cell, greatly enhance the peace of battery bag
Quan Xing, and it is easy to the maintenance of battery bag.
The present invention technical solution be：Battery bag with aluminium wire, including top tray, lower tray, cell and
Fluid confluence, the upper and lower pallet is provided with pallet through hole, and the cell is sandwiched between top tray and lower tray, described
Fluid confluence is connected with upper and lower pallet, and the fluid confluence is connected to top tray outer surface, and this fluid confluence is upper fluid confluence, should
Upper fluid confluence is provided with fluid confluence through hole, and the cell positive pole is corresponding with the pallet lead to the hole site in top tray, described
The fluid confluence through hole of upper fluid confluence is corresponding with the pallet lead to the hole site of top tray, and the cell is by aluminium wire with above confluxing
Body phase is connected, and the aluminium wire is through the pallet through hole of end top tray and the fluid confluence through hole of upper fluid confluence, one end of the aluminium wire
Cell positive pole is connected to, the other end is connected on fluid confluence.
Further, the above-mentioned battery bag with aluminium wire, wherein：The fluid confluence is connected to lower tray outer surface, this
Fluid confluence is lower fluid confluence, and the lower fluid confluence is provided with fluid confluence through hole, the cell negative pole and the pallet in lower tray
Lead to the hole site is corresponding, and the fluid confluence through hole of the lower fluid confluence is corresponding with the pallet lead to the hole site of lower tray, the monomer
Battery is connected by aluminium wire with lower fluid confluence, and the aluminium wire is through the pallet through hole of end lower tray and the fluid confluence of lower fluid confluence
Through hole, one end of the aluminium wire is connected to cell negative pole, and the other end is connected on lower fluid confluence.
Further, the above-mentioned battery bag with aluminium wire, wherein：The upper end of the cell is connected in the support of top tray
In disk through hole, the lower end of the cell is connected in the pallet through hole of lower tray.
Further, the above-mentioned battery bag with aluminium wire, wherein：Pass through bolt or card between the top tray and lower tray
Button connection.
The invention also discloses a kind of aluminium wire welding procedure of battery bag, comprise the following steps：Welded using bonding machine
Connect,
(1) butt welding contact applies 4.5~7N contact force；
(2) contact force is changed into 3.8~8N through 10~20ms；
(3) contact force is risen into 9.5~15N through 15~25ms, and keeps 90~150ms of the contact force；
A diameter of 250~400 μm of the aluminium wire, the energy value of the plumb joint is 70~100J；.
Further, the aluminium wire welding procedure of above-mentioned battery bag, wherein：The pad is located at cell positive pole,
The pad contact force is 4.90~6.86N, and then weld force rises to 5.88~7.84N through 10~20ms, then weld force
10.78~14.70N is risen to through 15~25ms, last weld force keeps 120~150ms.
Further, the above-mentioned battery bag with aluminium wire, wherein：The pad is located at cell negative pole, described
Pad contact force is 4.90~6.86N, and then weld force decays to 3.92~4.90N through 10~20ms, and then weld force is passed through
15~25ms rises to 9.80~11.76N, and last weld force keeps 90~120ms.
Yet further, the above-mentioned battery bag with aluminium wire, wherein：The pad is located on fluid confluence, the welding
Point contact force is 4.90~6.86N, and then weld force rises to 6.37~7.84N through 10~20ms, then weld force through 15~
25ms rises to 10.78~12.74N, and last weld force keeps 100~140ms.
The prominent substantive distinguishing features of the present invention and significant technological progress are mainly reflected in：
(1) due to being welded to connect between cell and fluid confluence by aluminium wire, occur exception in cell, cause reality
When border output current exceedes limitation electric current, aluminium wire can fuse in very short time so that the abnormal cell and remittance
Fluid disconnects, it is ensured that the security of battery bag；
(2) when abnormal conditions occur for cell, abnormal cell and fluid confluence disconnection can't influence remaining list
The work of body battery, so that remaining normal cell can be with normal work, and uses the welding method of the present invention, aluminium wire
Welding is extremely firm, is not susceptible to solder joint loosening, improves the stability of battery bag；
(3) when overhauling, the cell that aluminium wire disconnects is abnormal cell, and staff is very easy to find, no
Each in battery bag cell must one by one be detected, maintain easily and overhaul.
Brief description of the drawings
Fig. 1 is the battery bag overall schematic that the present invention has aluminium wire；
Fig. 2 is top tray schematic diagram；
Fig. 3 is cell and the plate weld schematic diagram that confluxes；
Fig. 4 is bonding machine structural representation.
In figure, the implication of each reference is：1-top tray, 11-pallet through hole, 2-lower tray, 3-cell,
4-fluid confluence, 41-fluid confluence through hole, 5-aluminium wire, 6-plumb joint, 7-sliding beam, 8-workbench.
Embodiment
Below in conjunction with accompanying drawing, the embodiment to the present invention is described in further detail, so that technical solution of the present invention is more
It should be readily appreciated that and grasp.
As shown in figures 1 and 3, the battery bag with aluminium wire, including top tray 1, lower tray 2, cell 3 and upper and lower
Two fluid confluences 4.Top tray 1 and lower tray 2 are provided with pallet through hole 11, and multiple, each cell can be set in cell 3
3 are sandwiched between top tray 1 and lower tray 2, and upper fluid confluence 4 is connected to the upper surface top of top tray 1, and lower fluid confluence 4 is connected to
The lower surface bottom of lower tray 2, fluid confluence 4 is provided with fluid confluence through hole 41, and the both positive and negative polarity of each cell 3 passes through aluminium wire
5 are connected with upper and lower fluid confluence 4.Need exist in explanation, such scheme, the both positive and negative polarity of cell 3 is passed through into aluminium
Silk 5 be respectively connecting on upper and lower fluid confluence 4 be only preferred scheme, also can only by the positive pole of cell 3 by aluminium wire 5 with it is upper
Fluid confluence 4 is connected, and the negative pole of cell 3 is directly welded to connect with lower fluid confluence 4, and cell 3 is welded to connect with fluid confluence 4
For prior art, repeat no more here.
As shown in figure 3, the both positive and negative polarity of cell 3 respectively with top tray 1 and the position phase of the pallet through hole 11 of lower tray 2
Correspondence, the position of the fluid confluence through hole 41 of upper fluid confluence 4 is corresponding with the position of pallet through hole 11 of top tray 1, lower fluid confluence 4
The position of fluid confluence through hole 41 is corresponding with the position of pallet through hole 11 of lower tray 2, and aluminium wire 5 runs through pallet through hole 11 and fluid confluence
Through hole 41, the positive pole of cell 3 is connected with one end of aluminium wire 5, the other end and the fluid confluence 4 of the upside of top tray 1 of aluminium wire 5
It is connected, the negative pole of cell 3 is connected with one end of aluminium wire 5, the other end and the fluid confluence 4 of the downside of lower tray 2 of aluminium wire 5
It is connected.
As shown in Figures 2 and 3, the upper end of cell 3 is connected in the pallet through hole 11 of top tray 1, cell 3
Lower end is connected in the pallet through hole 11 of lower tray 2, can be using the mode such as be interference fitted, paste, as long as guarantee cell 3
Two ends are firm to be connected in pallet through hole 11.Top tray 1 and lower tray 2 are mutually fastenedly connected by bolt, also may be used certainly
It is fastenedly connected by snap, as long as ensureing to be fastenedly connected between top tray 1 and lower tray 2 and being easy to take apart.
The diameter of aluminium wire 5 is directly affected to its effect of fusing, if aluminium wire 5 is excessively thick, real when cell 3 is abnormal
When border output current exceedes its current limit, aluminium wire 5 can not fuse in time, can be made to circuit or using the equipment of the battery bag
Into damage, if aluminium wire 5 is meticulous, when the actual output current of cell 3 is still when within the scope of limiting, aluminium wire 5 is caused
Fusing, influences normal work.The diameter of aluminium wire 5 elects 250~400 μm, particularly preferably 380 μm as.
The invention also discloses the aluminium wire drawing welding procedure in a kind of battery bag, using bonding machine as shown in Figure 4, the weldering
Pick including plumb joint 6, sliding beam 7 and workbench 8, sliding beam 7 is connected with workbench 8, can be along before workbench 8
After move, plumb joint 6 is installed on sliding beam 7, can be moved left and right along sliding beam 7, and plumb joint 6 itself can be moved up and down,
So that plumb joint 6 can be welded in the optional position in workbench 8.Plumb joint 6 is preferably ultrasonic bonding head.Above-mentioned weldering
Pick and belong to prior art, repeat no more here.When being welded by bonding machine to the present invention, specifically using following methods：
The contact force of the Contact welding contact aluminium wire 5 of plumb joint 6 is 4.5~7N, and the contact force is changed into 3.8~8N through 10~20ms, then through 15
~25ms rises to 9.5~15N, finally keeps 90~150ms.The energy value of plumb joint 6 elects 70~100J as, particularly preferably
80J.There are pad, the cell 3 between three pads, the i.e. positive pole of cell 3 and aluminium wire 5 in the welding process of aluminium wire 5
The pad between pad and fluid confluence 4 and aluminium wire 5 between negative pole and aluminium wire 5, wherein fluid confluence 4 are preferably aluminium sheet.
During welding, the energy value of power, weld interval and plumb joint 6 that plumb joint 6 is applied all has an impact to aluminium wire welding procedure, if weldering
Relay is too small, the time is too short or energy value is too low, can cause not prison welding to consolidate；If weld force is excessive, overlong time or
The too high aluminium liquid that can cause to melt at pad of energy is extended out, and can equally cause the unstable situation of pad, and can also damage
Hinder pad surface.Wherein topmost influence factor is the weld force of plumb joint 6.
Below for different pads, specific embodiment and comparative example are provided：
Embodiment 1
When the positive pole of cell 3 and the one end of aluminium wire 5 are welded, plumb joint 6 is that 600g (is with pad contact force
5.88N), 700g (being 6.86N) then is risen to through 15ms, then rises to 1300g (being 12.74N) through 20ms, finally keep
140ms.The energy value of plumb joint 6 is 80J.
Embodiment 2
When the positive pole of cell 3 and the one end of aluminium wire 5 are welded, plumb joint 6 is 4.90N, Ran Houjing with pad contact force
10ms rises to 5.88N, then rises to 10.78N through 15ms, finally keeps 120ms.The energy value of plumb joint 6 is 70J.
Embodiment 3
When the positive pole of cell 3 and the one end of aluminium wire 5 are welded, plumb joint 6 is 6.86N, Ran Houjing with pad contact force
20ms rises to 7.84N, then rises to 14.70N through 25ms, finally keeps 150ms.The energy value of plumb joint 6 is 90J.
Embodiment 4
When the negative pole of cell 3 and the one end of aluminium wire 5 are welded, plumb joint 6 is that 600g (is with pad contact force
5.88N), 450g (being 4.41N) then is decayed to through 15ms, then rises to 1100g (being 10.78N) through 20ms, finally protect
Hold 100ms.The energy value of plumb joint 6 is 80J.
Embodiment 5
When the negative pole of cell 3 and the one end of aluminium wire 5 are welded, plumb joint 6 is 4.90N, Ran Houjing with pad contact force
10ms decays to 3.92N, then rises to 9.80N through 15ms, finally keeps 90ms.The energy value of plumb joint 6 is 70J.
Embodiment 6
When the negative pole of cell 3 and the one end of aluminium wire 5 are welded, plumb joint 6 is 6.86N, Ran Houjing with pad contact force
20ms decays to 4.90N, then rises to 11.76N through 25ms, finally keeps 120ms.The energy value of plumb joint 6 is 100J.
Embodiment 7
When the other end of aluminium wire 5 and aluminium fluid confluence 4 are welded, plumb joint 6 is that 600g (is with pad contact force
5.88N), 700g (being 6.86N) then is risen to through 15ms, then rises to 1150g (being 11.27N) through 20ms, finally keep
120ms.The energy value of plumb joint 6 is 80J.
Embodiment 8
When the other end of aluminium wire 5 and aluminium fluid confluence 4 are welded, plumb joint 6 is 4.90N, Ran Houjing with pad contact force
10ms rises to 6.37N, then rises to 10.78N through 15ms, finally keeps 100ms.The energy value of plumb joint 6 is 70J.
Embodiment 9
When the other end of aluminium wire 5 and aluminium fluid confluence 4 are welded, plumb joint 6 is 6.86N, Ran Houjing with pad contact force
20ms rises to 7.84N, then rises to 12.74N through 25ms, finally keeps 140ms.The energy value of plumb joint 6 is 90J.
Comparative example 1
When the positive pole of cell 3 and the one end of aluminium wire 5 are welded, plumb joint 6 is 4.90N, Ran Houjing with pad contact force
15ms rises to 5.39N, then rises to 8.82N through 20ms, finally keeps 100ms.The energy value of plumb joint 6 is 80J.
Comparative example 2
When the other end of aluminium wire 5 and aluminium fluid confluence 4 are welded, plumb joint 6 is 5.88N, Ran Houjing with pad contact force
15ms rises to 9.8N, then rises to 14.7N through 20ms, finally keeps 140ms.The energy value of plumb joint 6 is 80J.
Pad fastness uses following detection method：(1) by operating plumb joint 6 to fall on pad, (2) plumb joint
6 with the pulling force of 300g (being 2.94N)) pull-up aluminium wire pad, if aluminium wire is broken during the pull-up of plumb joint 6, illustrate
Pad is insecure, illustrates that pad is firm if fracture does not occur during the pull-up of plumb joint 6 for aluminium wire.
Table 1 is the parameters of aluminium wire welding procedure in embodiment and comparative example.
From table 1 it follows that using welding procedure in embodiment 1-9, for the pad of diverse location, after testing after
Wire drawing is unbroken, and pad surface is not also damaged.And as shown in comparative example 1, because weld force is too small, then cause
Pad is insecure, thus during detection, aluminium wire drawing fracture；As shown in comparative example 2, because weld force is excessive, thus during detection, aluminium
Wire drawing is broken, and surface damage.
In summary, when weld locations are located at cell positive pole, preferably plumb joint 6 is with pad contact force
4.90~6.86N, then rises to 5.88~7.84N through 10~20ms, then rises to 10.78~14.70N through 15~25ms, most
120~150ms is kept afterwards.The energy value of plumb joint 6 is 70~90J.
When weld locations are located at cell negative pole, preferably plumb joint 6 and pad contact force be 4.90~
6.86N, then decays to 3.92~4.90N through 10~20ms, then rises to 9.80~11.76N through 15~25ms, finally keeps
90~120ms.The energy value of plumb joint 6 is 70~100J.
When weld locations are located on fluid confluence, preferably plumb joint 6 and pad contact force are 4.90~6.86N,
Then 6.37~7.84N is risen to through 10~20ms, then rises to 10.78~12.74N through 15~25ms, finally holding 100~
140ms.The energy value of plumb joint 6 is 70~90J.
By above description as can be seen that the battery bag with aluminium wire mentioned by the present invention, due to cell and remittance
It is welded to connect between fluid by aluminium wire, occurs exception in cell, when causing actual output current more than limitation electric current, aluminium
Silk can fuse so that the abnormal cell and fluid confluence disconnect, it is ensured that the security of battery bag；Cell occurs
During abnormal conditions, abnormal cell and fluid confluence disconnection can't influence the work of remaining cell, so that remaining is just
Normal cell can be with normal work, and using the welding method of the present invention, aluminium wire welding is extremely firm, is not susceptible to weldering
Point loosens, and improves the stability of battery bag；In addition, during maintenance, the cell that aluminium wire disconnects is abnormal cell,
Staff is very easy to find, it is not necessary to each cell in battery bag is detected one by one, maintains easily and repairs.
Certainly, it is the representative instance of the present invention above, in addition, the present invention can also have other a variety of specific implementations
The technical scheme of mode, all use equivalent substitutions or equivalent transformation formation, all falls within the scope of protection of present invention.
Table 1 is the parameters of aluminium wire welding procedure in embodiment and comparative example.
Claims (9)
1. the battery bag with aluminium wire, including top tray, lower tray, cell and fluid confluence, the upper and lower pallet are provided with
Pallet through hole, the cell is sandwiched between top tray and lower tray, and the fluid confluence is connected with upper and lower pallet, its
It is characterised by：The fluid confluence is connected to top tray outer surface, and this fluid confluence is upper fluid confluence, and fluid confluence is provided with remittance on this
Fluid through-hole, the cell positive pole is corresponding with the pallet lead to the hole site of top tray, and the fluid confluence of the upper fluid confluence leads to
Hole is corresponding with the pallet lead to the hole site of top tray, and the cell is connected by aluminium wire with upper fluid confluence, the aluminium wire
Through the pallet through hole and the fluid confluence through hole of upper fluid confluence of end top tray, one end of the aluminium wire is being connected to cell just
Pole, the other end is connected on fluid confluence.
2. the battery bag according to claim 1 with aluminium wire, it is characterised in that：The fluid confluence is connected to outside lower tray
Side surface, this fluid confluence is lower fluid confluence, and the lower fluid confluence is provided with fluid confluence through hole, the cell negative pole and lower tray
Pallet lead to the hole site it is corresponding, the fluid confluence through hole of the lower fluid confluence is corresponding with the pallet lead to the hole site of lower tray, institute
State cell by aluminium wire with lower fluid confluence to be connected, the aluminium wire is through the pallet through hole and lower fluid confluence for holding lower tray
Fluid confluence through hole, one end of the aluminium wire is connected to cell negative pole, and the other end is connected on lower fluid confluence.
3. the battery bag according to claim 2 with aluminium wire, it is characterised in that：The upper end of the cell is connected in
In the pallet through hole of top tray, the lower end of the cell is connected in the pallet through hole of lower tray.
4. the battery bag according to claim 2 with aluminium wire, it is characterised in that：Lead between the top tray and lower tray
Cross bolt or snap connection.
5. the aluminium wire welding procedure of a kind of battery bag, it is characterised in that comprise the following steps：
（1）Butt welding contact applies 4.5 ~ 7N contact force；
（2）Contact force is changed into 3.8 ~ 8N through 10 ~ 20ms；
（3）Contact force is risen into 9.5 ~ 15N through 15 ~ 25ms, and keeps 90 ~ 150ms of the contact force.
6. the aluminium wire welding procedure of battery bag according to claim 5, it is characterised in that：Connect using described in bonding machine application
Touch, a diameter of 250 ~ 400 μm of the aluminium wire, the energy value of the plumb joint is 70 ~ 100J.
7. the battery bag according to claim 6 with aluminium wire, it is characterised in that：The pad is being located at cell just
Pole, the step（1）In, contact force is 4.90 ~ 6.86N, the step（2）In, contact force rises to 5.88 through 10 ~ 20ms ~
7.84N, the step（3）In, contact force rises to 10.78 ~ 14.70N through 15 ~ 25ms, and keeps 120 ~ 150ms of the contact force.
8. the battery bag according to claim 6 with aluminium wire, it is characterised in that：The pad is negative positioned at cell
Pole, the step（1）In, contact force is 4.90 ~ 6.86N, the step（2）In, contact force decays to 3.92 through 10 ~ 20ms ~
4.90N, the step（3）In, contact force rises to 9.80 ~ 11.76N through 15 ~ 25ms, and keeps 90 ~ 120ms of the contact force.
9. the battery bag according to claim 6 with aluminium wire, it is characterised in that：The pad is located on fluid confluence,
The step（1）In, contact force is 4.90 ~ 6.86N, the step（2）In, contact force rises to 6.37 ~ 7.84N through 10 ~ 20ms,
The step（3）In, contact force rises to 10.78 ~ 12.74N through 15 ~ 25ms, and keeps 100 ~ 140ms of the contact force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710137327.7A CN107068926A (en) | 2017-03-09 | 2017-03-09 | Battery bag and its aluminium wire welding procedure with aluminium wire |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710137327.7A CN107068926A (en) | 2017-03-09 | 2017-03-09 | Battery bag and its aluminium wire welding procedure with aluminium wire |
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| CN103273206A (en) * | 2013-05-17 | 2013-09-04 | 南昌航空大学 | Laser auxiliary hot-pressure welding device and welding method for connecting titanium / aluminum dissimilar materials |
| CN205319222U (en) * | 2015-12-28 | 2016-06-15 | 广州橙行智动汽车科技有限公司 | Battery module with fusing protect function |
| CN206471401U (en) * | 2017-03-09 | 2017-09-05 | 宁波利维能储能系统有限公司 | Battery bag with aluminium wire |
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Application publication date: 20170818 |