CN104319362A - Vehicle lithium ion battery integration module and integration method thereof - Google Patents
Vehicle lithium ion battery integration module and integration method thereof Download PDFInfo
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- CN104319362A CN104319362A CN201410664738.8A CN201410664738A CN104319362A CN 104319362 A CN104319362 A CN 104319362A CN 201410664738 A CN201410664738 A CN 201410664738A CN 104319362 A CN104319362 A CN 104319362A
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- module
- heat conducting
- cell
- lithium ion
- conducting frame
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
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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
- H01M50/256—Carrying devices, e.g. belts
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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
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a vehicle lithium ion battery integration module and an integration method thereof. Single batteries are fixed to a heat conduction frame which has a heat conduction function through the structure glue adhering technology to form a single battery module, a plurality of single battery modules are fixed through the structure glue adhering technology, the module shaping technology and the bandage bundling technology, connection between aluminum strips and battery post terminals is carried out through the laser welding technology, and lastly the wiring harness terminal connecting and inserting technology and the upper cover fixing technology are carried out. According to the vehicle lithium ion battery integration module and the integration method thereof, battery unit splicing is adopted, the post terminals are connected through aluminum strip laser welding, reliability is greatly improved, and compared with the traditional nut locking technology, weight of the whole vehicle lithium ion battery integration module is reduced by about 10 percent to 40 percent.
Description
Technical field
The present invention relates to power battery module integrated technology field, particularly relate to a kind of vehicle lithium ion battery integration module and integrated approach thereof.
Background technology
As shown in Figure 1, the housing design of traditional battery module adopts housing 1 ' and upper cover 6 ' to combine, cell 2 ' is disposed side by side in housing 1 ', and each cell 2 ' has battery upper cover 5 ', connects the structure adopting nut 3 ' to lock jumper 4 ' between cell 2 '.Because cell 2 ' Positive Poles material is aluminium matter, very large moment of torsion cannot be born, can only reach 1/10 of steel stud 3 ' locking torque, so the locking of pole nut 3 ' exists the potential risk got loose afterwards, and a large amount of nuts 3 ' too increases the weight of whole module.
Summary of the invention
The invention provides a kind of vehicle lithium ion battery integration module and integrated approach thereof, adopt battery unitization assembled, connect between pole and adopt aluminium matter jumper laser welding, substantially increase reliability, and reduce overall weight.
In order to achieve the above object, the invention provides a kind of vehicle lithium ion battery integration module, this vehicle lithium ion battery integration module comprises:
Some unit battery modules, these unit battery modules are arranged side by side, and adopt structure glue bonding each other, form assembled Shaping Module;
Described unit battery module comprises:
Heat conducting frame, this heat conducting frame is the frame structure can holding cell, described heat conducting frame has hollow out base plate and the side plate being connected hollow out base plate, in the position of the contacts side surfaces of side wall inner surfaces and cell, be coated with one deck structure glue, the surface that hollow out plate outer surface contacts with the heat conducting frame in neighboring unit cell module has a glue groove, in this glue groove, is coated with structure glue;
Cell, it is arranged in heat conducting frame, described cell is rectangular hexahedron structure, there is front, the back side and side, the front of cell or the back side contact with the hollow out plate inner surface of heat conducting frame, on the surface that cell contacts with the hollow out plate inner surface of heat conducting frame, be coated with one deck heat-conducting silicone grease;
Buffer insulation pad, it is pasted onto front or the back side of cell, and is arranged between cell and heat conducting frame, and the size of this buffer insulation pad is greater than the openwork part on the hollow out base plate of heat conducting frame;
Described vehicle lithium ion battery integration module also comprises:
Some bandages, its colligation is on assembled Shaping Module, and this bandage adopts stainless steel;
Some jumpers, the pole welding of two cells that each jumper is adjacent respectively, this jumper adopts aluminium material.
Described vehicle lithium ion battery integration module also comprises:
Wire harness, the sampling terminal of its every single line is connected on the copper tip of each sampled point of assembled Shaping Module;
Upper cover, it is fixed on heat conducting frame.
The present invention also provides a kind of integrated approach of vehicle lithium ion battery integration module, and this integrated approach comprises following steps:
Step 1, on cell, be coated with heat-conducting silicone grease;
Step 2, side wall inner surfaces applying structure glue at heat conducting frame;
Step 3, assembled unit battery module;
Step 4, in the some glue groove of the hollow out plate outer surface of the heat conducting frame of each unit battery module applying structure glue;
Step 5, by assembled for some unit battery modules shaping;
Step 6, utilize bandage to tie up to tighten up assembled Shaping Module;
Step 7, welding bandage;
Jumper is welded on the pole of two adjacent cells by step 8, use laser welding, and the connection in series-parallel realized between cell pole connects;
Step 9, the sampling terminal utilizing soldering fixed beam and copper tip;
Step 10, upper cover to be fixedly installed on heat conducting frame.
In described step 1, one deck heat-conducting silicone grease is coated with in the regulation region at the front of cell or the back side, the region that the shaped position in this regulation region contacts with the hollow out plate inner surface of heat conducting frame with the front of cell or the back side matches, described heat-conducting silicone grease adopts the silicone grease of insulation, and the thickness of the heat-conducting silicone grease of coating is 0.1mm ~ 0.2mm.
In described step 2, even spread structure glue in the lateral side regions of the side wall inner surfaces of heat conducting frame, the Edge Distance of the side plate of this lateral side regions and heat conducting frame is 2 ~ 5mm, and the width of this lateral side regions is 15 ~ 20% of the side plate width of heat conducting frame.
In described step 2 and step 4, be greater than the TPT of the integrated production line of whole piece vehicle lithium ion battery integration module the curing time of described structure glue, ensure can not solidify before later process completes, the surface drying time of structure glue is 20 minutes, and the mobility of structure glue is greater than 300pa.s simultaneously.
Described step 3 comprises following steps:
Step 3.1, by buffer insulation pad single-sided back-adhesive, paste one side cell being coated with heat-conducting silicone grease, the position that buffer insulation pad is pasted is corresponding with the openwork part on the hollow out base plate of heat conducting frame, after making that unit battery module is assembled and completing, buffer insulation pad can shelter from the openwork part on hollow out base plate completely;
Step 3.2, the cell being pasted with buffer insulation pad is installed in heat conducting frame, is coated on the structure glue in the lateral side regions of the side wall inner surfaces of heat conducting frame and the side of cell and heat conducting frame are bonded together, form unit battery module.
In described step 5, some unit battery modules are arranged on the tool pallet on shaping tooling, extruded to centre by the two ends of screw mandrel hold-down mechanism from some unit battery modules, make mutually to bond between adjacent unit battery module, form assembled Shaping Module, the size of assembled Shaping Module is carried out the excessive extruding of 0.2% by screw mandrel hold-down mechanism.
In described step 6, utilizing steel band to tighten up tool is banded on assembled Shaping Module by some stainless steel bandages, and tighten up stainless steel bandage, the tightening force that steel band tightens up tool to be provided is greater than 2000N, fitted by bandage by force by pulling force the R angle of assembled Shaping Module corner, the tightening force difference between bandage controls within 10%.
Described step 8 comprises following steps:
Step 8.1, use laser spot welding to form pre-solder joint on the pole of jumper and cell to fix jumper;
Step 8.2, use optical-fiber laser weldering butt welded seam weld.
The present invention adopts battery unitization assembled, connects and adopts aluminium matter jumper laser welding, substantially increase reliability, and reduce overall weight between pole.
Accompanying drawing explanation
Fig. 1 is the structural representation of conventional battery modules in background technology.
Fig. 2 is heat-conducting silicone grease dispensing area schematic diagram.
Fig. 3 is heat conducting frame structure glue dispensing area schematic diagram.
Fig. 4 is heat conducting frame structure glue dispensing area schematic diagram.
Fig. 5 is battery unit combination schematic diagram.
Fig. 6 is shaping tooling schematic diagram.
Fig. 7 is module shaping schematic diagram.
Fig. 8 is steel band spot welding area schematic.
Fig. 9 is jumper laser welding track schematic diagram.
Figure 10 is connector scheme of installation.
Figure 11 is the structural representation of vehicle lithium ion battery integration module provided by the invention.
Figure 12 is the temperature rise experimental diagrams with or without heat-conducting silicone grease.
Embodiment
Following according to Fig. 2 ~ Figure 12, illustrate preferred embodiment of the present invention.
As shown in figure 11, the invention provides a kind of vehicle lithium ion battery integration module, comprise:
Some unit battery modules, these unit battery modules are arranged side by side, and adopt structure glue bonding each other, form assembled Shaping Module;
Described unit battery module comprises:
Heat conducting frame 3(adopts heat-conducting plastic injection molded, base material is polyamide PA), as shown in Figure 3 and Figure 4, this heat conducting frame 3 is the frame structures can holding cell 1, this heat conducting frame 3 has hollow out base plate 301 and the side plate 302 being connected hollow out base plate 301, in the position of the contacts side surfaces of side plate 302 inner surface and cell 1, be coated with one deck structure glue, the surface that hollow out base plate 301 outer surface contacts with the heat conducting frame 3 in neighboring unit cell module has a glue groove 22, in this glue groove 22, is coated with structure glue;
Cell 1, it is arranged in heat conducting frame 3, as shown in Figure 2, this cell 1 is rectangular hexahedron structure, there is front, the back side and side, the front of cell 1 or the back side contact with hollow out base plate 301 inner surface of heat conducting frame 3, on the surface that cell 1 contacts with hollow out base plate 301 inner surface of heat conducting frame 3, are coated with one deck heat-conducting silicone grease;
Buffer insulation pad 5(adopts Saint-Gobain K30-125 to be that base material cutting forms), as shown in Figure 5, it is pasted onto front or the back side of cell 1, and be arranged between cell 1 and heat conducting frame 3, the size of this buffer insulation pad 5 is greater than the openwork part on the hollow out base plate 301 of heat conducting frame 3, the effect of this buffer insulation pad 5 is that between the battery after being buffered in cell 1 bulging, space diminishes, and makes to insulate between cell 1;
As shown in figure 11, described vehicle lithium ion battery integration module also comprises:
Some bandages 15, its colligation is on assembled Shaping Module, and this bandage 15 adopts stainless steel;
Some jumpers 17, the pole welding of two cells 1 that each jumper 17 is adjacent respectively, this jumper 17 adopts aluminium material;
Wire harness 23, the sampling terminal 24 of its every single line is connected on the copper tip 21 of each sampled point of assembled Shaping Module;
Upper cover 6, uses M4 tapping screw to be fixed on heat conducting frame 3, for the battery electrode column of the whole assembled Shaping Module of insulation protection.
The present invention also provides a kind of integrated approach of vehicle lithium ion battery integration module, comprises following steps:
Step 1, on cell 1, be coated with heat-conducting silicone grease;
As shown in Figure 2, coating one deck heat-conducting silicone grease in the regulation region 2 at the front of cell 1 or the back side, the region that the shaped position in this regulation region 2 contacts with hollow out base plate 301 inner surface of heat conducting frame 3 with the front of cell 1 or the back side matches;
The thickness of the heat-conducting silicone grease of coating is 0.1mm ~ 0.2mm;
The uniformity of heat-conducting silicone grease coating is realized, by the coating thickness selecting the thickness of different silk screen web plates to obtain different heat-conducting silicone greases, by the coating weight selecting the order number of different silk screen web plates to obtain different heat-conducting silicone greases by silk screen printing;
Described heat-conducting silicone grease adopts the silicone grease of insulation;
Due to part manufacturing tolerance, cause cell 1 and the imperfectible laminating of heat conducting frame 3, gap between cell 1 and heat conducting frame 3 is filled by air, the thermal conductivity of air is only the thermal conductivity 14W/mK that 0.02W/mK is significantly smaller than heat conducting frame 3, this makes integral heat sink effect reduce, the object of coating heat-conducting silicone grease is deaeration, reduce the thermal resistance between cell 1 and heat conducting frame 3, from the experimental data Figure 12, can find out, the pass of temperature and time is linear relationship, linear formula is y=kx+b, wherein, y is temperature (DEG C), x is the time (s), b is experiment initial temperature, k is slope, as can be seen from the figure, without slope k during heat-conducting silicone grease
1=0.0059, there is slope k during heat-conducting silicone grease
2=0.0039, this illustrates after employing heat-conducting silicone grease, and temperature rise obtains and significantly slows down.Step 2, side plate 302 inner surface applying structure glue at heat conducting frame 3;
Even spread structure glue in the lateral side regions 4 of side plate 302 inner surface of heat conducting frame 3, this lateral side regions 4 is 2 ~ 5mm with the Edge Distance of the side plate 302 of heat conducting frame 3, the width of this lateral side regions 4 is 15 ~ 20% of side plate 302 width of heat conducting frame 3, when ensure that cell 1 loads heat conducting frame 3, structure glue can be distributed in the whole side of cell 1, reaches best adhesive effect;
Described structure glue has certain curing time, the TPT of whole production line must be greater than this curing time, be approximately 1 hour, ensure can not solidify before later process completes, the surface drying time of structure glue is less than 20 minutes, the mobility of structure glue is greater than 300pa.s simultaneously, improves process operability;
Step 3, assembled unit battery module (as shown in Figure 5);
Step 3.1, by buffer insulation pad 5 single-sided back-adhesive (model of this gum is 3M9495), paste one side cell 1 being coated with heat-conducting silicone grease, the position that buffer insulation pad 5 is pasted is corresponding with the openwork part on the hollow out base plate 301 of heat conducting frame 3, after making that unit battery module is assembled and completing, buffer insulation pad 5 can shelter from the openwork part on hollow out base plate 301 completely;
Step 3.2, the cell 1 being pasted with buffer insulation pad 5 is installed in heat conducting frame 3, the side of cell 1 and heat conducting frame 3 are bonded together by the structure glue be coated in the lateral side regions 4 of side plate 302 inner surface of heat conducting frame 3, form unit battery module;
Step 4, in the some glue groove 22 of hollow out base plate 301 outer surface of the heat conducting frame 3 of each unit battery module applying structure glue (as shown in Figure 4);
Structure glue is used to substitute integral structure component to provide the XYZ direction structure intensity of whole module;
Described structure glue has certain curing time, the TPT of whole production line must be greater than this curing time, be approximately 1 hour, ensure can not solidify before later process completes, the surface drying time of structure glue is about 20 minutes, the mobility of structure glue is greater than 300pa.s simultaneously, improves process operability;
Step 5, by assembled for some unit battery modules shaping;
As shown in Figure 6, some unit battery modules are arranged on the tool pallet 11 on shaping tooling 8, extruded to centre by the two ends of screw mandrel hold-down mechanism 9 from some unit battery modules, make mutually to bond between adjacent unit battery module, form assembled Shaping Module;
Described tool pallet 11 can ensure linearity during unit battery module shaping;
The size of assembled Shaping Module is carried out the excessive extruding of 0.2% by screw mandrel hold-down mechanism 9, such as: when 36 unit battery modules are bonded to assembled Shaping Module, the overall length of assembled Shaping Module should be 515 ± 0.5mm, after screw mandrel hold-down mechanism 9 carries out the excessive extruding of 0.2%, overall length is 514 ± 0.5mm; Step 6, utilize bandage to tie up to tighten up assembled Shaping Module;
As shown in Figure 7, utilize steel band to tighten up tool 10 and some stainless steel bandages 15 are banded on assembled Shaping Module, and tighten up stainless steel bandage 15;
The tightening force that steel band tightens up tool 10 to be provided needs to be greater than 2000N, by force bandage 15 to be fitted by pulling force the R angle 22 of assembled Shaping Module corner, bandage tightens up the object reaching constraints module Y-direction completely, article four, the tightening force difference of bandage 15 need control within 10%, effectively could prevent assembled Shaping Module generation warpage;
Step 7, welding bandage;
As shown in Figure 8, in the present embodiment, the 80W laser-beam welding machine bandage 15 wide to the thick 10mm of 0.5mm is used to carry out laser spot welding, 4 welding positions 14, place welds, this welding position 14 is 2 ~ 3mm with the spacing at bandage 15 edge, with focal length 225.5mm, point apart from 0.5mm, spot diameter 0.5mm totally 15 points one group weld, form a welding track, spacing not between adjacent two welding tracks is on the same line 2 ~ 3mm, and the spacing between two welding tracks be located on the same line is 5 ~ 10mm;
Need ensure gapless between welding portion bandage 15 during welding, carry out tensile test after welding, weld strength reaches more than 4000N 403 stainless steel band material yield strength;
Step 8, laser welding jumper;
Use laser welding to be welded on the pole 16 of two adjacent cells 1 by jumper 17, the connection in series-parallel realized between cell 1 pole 16 connects;
Step 8.1, use laser spot welding to form pre-solder joint fixed span contact pin 17 on the pole 16 of jumper 17 and cell 1, prevent from welding and shrink the weld seam 19 caused and become large;
As shown in Figure 9, use IPG2000 laser welder, power 1500W, carry out spot welding to aluminium 3003 jumper 17 and pole 16 to fix, there are 8 pre-solder joints of pre-solder joint 18(at least will reach 6), pre-solder joint answers bilateral symmetry, prevents because the monolateral weld seam caused excessive (when weld seam is more than 0.4, having the probability of more than 50% to occur bad) is shunk in welding;
Step 8.2, use optical-fiber laser weldering butt welded seam 19 weld, and need inert gas shielding, and use waste gas recovering device to reclaim welding waste gas.
Use power 1400 ~ 1800W, bifocus, the laser welder of speed 80mm/s, go out photocoagulation continuously, the welding track 20 formed due to solder joint 18 is polygon, and on the corner welding track can not weld according to weld shape completely, energy stacking will be caused, therefore the welding track 19 after going out photocoagulation continuously needs smoothing process, and welding process needs to carry out inert gas shielding, and uses air exhausting device to reclaim welding discarded object;
Step 9, the sampling terminal 24 utilizing soldering fixed beam 23 and copper tip 21;
As shown in Figure 10, the sampling terminal 24 of wire harness 23 is inserted on the copper tip 21 of each sampled point, uses sampling terminal 24 and the copper tip 21 of soldering fixed beam 23, prevent from getting loose, complete the connection of wire harness.
Step 10, by upper cover 6 screw hole 26 by tapping screw and heat conducting frame 3, to be arranged on heat conducting frame 3.
The present invention adopts battery unitization assembled, connects and adopts aluminium matter jumper laser welding, substantially increase reliability, and reduce overall weight between pole.
Although content of the present invention has done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple amendment of the present invention and substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (10)
1. a vehicle lithium ion battery integration module, is characterized in that, this vehicle lithium ion battery integration module comprises:
Some unit battery modules, these unit battery modules are arranged side by side, and adopt structure glue bonding each other, form assembled Shaping Module;
Described unit battery module comprises:
Heat conducting frame (3), this heat conducting frame (3) is the frame structure can holding cell (1), described heat conducting frame (3) has hollow out base plate (301) and the side plate (302) being connected hollow out base plate (301), in the position of the contacts side surfaces of side plate (302) inner surface and cell (1), be coated with one deck structure glue, the surface that hollow out base plate (301) outer surface contacts with the heat conducting frame (3) in neighboring unit cell module has a glue groove (22), in this glue groove (22), is coated with structure glue;
Cell (1), it is arranged in heat conducting frame (3), described cell (1) is rectangular hexahedron structure, there is front, the back side and side, the front of cell (1) or the back side contact with hollow out base plate (301) inner surface of heat conducting frame (3), on the surface that cell (1) contacts with hollow out base plate (301) inner surface of heat conducting frame (3), be coated with one deck heat-conducting silicone grease;
Buffer insulation pad (5), it is pasted onto front or the back side of cell (1), and being arranged between cell (1) and heat conducting frame (3), the size of this buffer insulation pad (5) is greater than the openwork part on the hollow out base plate (301) of heat conducting frame (3);
Described vehicle lithium ion battery integration module also comprises:
Some bandages (15), its colligation is on assembled Shaping Module, and this bandage (15) adopts stainless steel;
Some jumpers (17), the pole welding of two cells (1) that each jumper (17) is adjacent respectively, this jumper (17) adopts aluminium material.
2. vehicle lithium ion battery integration module as claimed in claim 4, it is characterized in that, described vehicle lithium ion battery integration module also comprises:
Wire harness (23), the sampling terminal (24) of its every single line is connected on the copper tip (21) of each sampled point of assembled Shaping Module;
Upper cover (6), it is fixed on heat conducting frame (3).
3., as an integrated approach for the vehicle lithium ion battery integration module in claim 1-2 as described in any one, it is characterized in that, this integrated approach comprises following steps:
Step 1, on cell (1), be coated with heat-conducting silicone grease;
Step 2, side plate (302) inner surface applying structure glue in heat conducting frame (3);
Step 3, assembled unit battery module;
Step 4, in some glue groove (22) of hollow out base plate (301) outer surface of the heat conducting frame (3) of each unit battery module applying structure glue;
Step 5, by assembled for some unit battery modules shaping;
Step 6, utilize bandage to tie up to tighten up assembled Shaping Module;
Step 7, welding bandage;
Jumper (17) is welded on the pole (16) of two adjacent cells (1) by step 8, use laser welding, and the connection in series-parallel realized between cell (1) pole (16) connects;
Step 9, the sampling terminal (24) utilizing soldering fixed beam and copper tip (21);
Step 10, upper cover (6) to be fixedly installed on heat conducting frame (3).
4. the integrated approach of vehicle lithium ion battery integration module as claimed in claim 3, it is characterized in that, in described step 1, coating one deck heat-conducting silicone grease in the regulation region (2) at the front of cell (1) or the back side, the region that the shaped position in this regulation region (2) contacts with hollow out base plate (301) inner surface of heat conducting frame (3) with the front of cell (1) or the back side matches, described heat-conducting silicone grease adopts the silicone grease of insulation, and the thickness of the heat-conducting silicone grease of coating is 0.1mm ~ 0.2mm.
5. the integrated approach of vehicle lithium ion battery integration module as claimed in claim 3, it is characterized in that, in described step 2, even spread structure glue in the lateral side regions (4) of side plate (302) inner surface of heat conducting frame (3), this lateral side regions (4) is 2 ~ 5mm with the Edge Distance of the side plate (302) of heat conducting frame (3), and the width of this lateral side regions (4) is 15 ~ 20% of side plate (302) width of heat conducting frame (3).
6. the integrated approach of the vehicle lithium ion battery integration module as described in claim 3 or 5, it is characterized in that, in described step 2 and step 4, be greater than the TPT of the integrated production line of whole piece vehicle lithium ion battery integration module the curing time of described structure glue, ensure can not solidify before later process completes, the surface drying time of structure glue is 20 minutes, and the mobility of structure glue is greater than 300pa.s simultaneously.
7. the integrated approach of vehicle lithium ion battery integration module as claimed in claim 3, it is characterized in that, described step 3 comprises following steps:
Step 3.1, by buffer insulation pad (5) single-sided back-adhesive, paste one side cell (1) being coated with heat-conducting silicone grease, the position that buffer insulation pad (5) is pasted is corresponding with the openwork part on the hollow out base plate (301) of heat conducting frame (3), after making that unit battery module is assembled and completing, buffer insulation pad (5) can shelter from the openwork part on hollow out base plate (301) completely;
Step 3.2, the cell (1) being pasted with buffer insulation pad (5) is installed in heat conducting frame (3), the side of cell (1) and heat conducting frame (3) are bonded together by the structure glue be coated in the lateral side regions (4) of side plate (302) inner surface of heat conducting frame (3), form unit battery module.
8. the integrated approach of vehicle lithium ion battery integration module as claimed in claim 3, it is characterized in that, in described step 5, some unit battery modules are arranged on the tool pallet (11) on shaping tooling (8), extruded to centre from the two ends of some unit battery modules by screw mandrel hold-down mechanism (9), make mutually to bond between adjacent unit battery module, form assembled Shaping Module, the size of assembled Shaping Module is carried out the excessive extruding of 0.2% by screw mandrel hold-down mechanism (9).
9. the integrated approach of vehicle lithium ion battery integration module as claimed in claim 3, it is characterized in that, in described step 6, utilizing steel band to tighten up tool (10) is banded on assembled Shaping Module by some stainless steel bandages (15), and tighten up stainless steel bandage (15), the tightening force that steel band tightens up tool (10) to be provided is greater than 2000N, fitted by bandage (15) by force by pulling force the R angle (22) of assembled Shaping Module corner, the tightening force difference between bandage (15) controls within 10%.
10. the integrated approach of vehicle lithium ion battery integration module as claimed in claim 3, it is characterized in that, described step 8 comprises following steps:
Step 8.1, use laser spot welding fix jumper (17) at the pre-solder joint of the upper formation of pole (16) of jumper (17) and cell (1);
Step 8.2, use optical-fiber laser weldering butt welded seam (19) are welded.
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| CN106711363A (en) * | 2015-07-22 | 2017-05-24 | 北京普莱德新能源电池科技有限公司 | Battery grouping framework |
| CN106935749A (en) * | 2015-09-18 | 2017-07-07 | 株式会社杰士汤浅国际 | Electrical storage device |
| CN107369794A (en) * | 2017-08-21 | 2017-11-21 | 内蒙古稀奥科镍氢动力电池有限公司 | Battery connecting seat and its Vehicular battery module |
| CN107946489A (en) * | 2017-11-23 | 2018-04-20 | 江西安驰新能源科技有限公司 | A kind of battery modules |
| CN109216600A (en) * | 2017-06-30 | 2019-01-15 | 比亚迪股份有限公司 | Battery modules |
| CN110140230A (en) * | 2016-10-14 | 2019-08-16 | 伊奈维特有限责任公司 | The battery module compartment and battery module of energy storage system are arranged |
| CN112829406A (en) * | 2020-12-10 | 2021-05-25 | 上海空间电源研究所 | Hollow rubber composite pad for lithium ion battery pack |
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| CN106935749A (en) * | 2015-09-18 | 2017-07-07 | 株式会社杰士汤浅国际 | Electrical storage device |
| CN110140230A (en) * | 2016-10-14 | 2019-08-16 | 伊奈维特有限责任公司 | The battery module compartment and battery module of energy storage system are arranged |
| CN109216600A (en) * | 2017-06-30 | 2019-01-15 | 比亚迪股份有限公司 | Battery modules |
| CN109216600B (en) * | 2017-06-30 | 2021-09-03 | 比亚迪股份有限公司 | Battery module |
| CN107369794A (en) * | 2017-08-21 | 2017-11-21 | 内蒙古稀奥科镍氢动力电池有限公司 | Battery connecting seat and its Vehicular battery module |
| CN107369794B (en) * | 2017-08-21 | 2023-05-30 | 内蒙古稀奥科贮氢合金有限公司 | Battery connecting seat and vehicle battery module thereof |
| CN107946489A (en) * | 2017-11-23 | 2018-04-20 | 江西安驰新能源科技有限公司 | A kind of battery modules |
| CN107946489B (en) * | 2017-11-23 | 2023-07-18 | 江西安驰新能源科技有限公司 | Battery module |
| CN112829406A (en) * | 2020-12-10 | 2021-05-25 | 上海空间电源研究所 | Hollow rubber composite pad for lithium ion battery pack |
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