CN108054332A - A kind of duralumin pole piece and battery modules - Google Patents
A kind of duralumin pole piece and battery modules Download PDFInfo
- Publication number
- CN108054332A CN108054332A CN201711178808.9A CN201711178808A CN108054332A CN 108054332 A CN108054332 A CN 108054332A CN 201711178808 A CN201711178808 A CN 201711178808A CN 108054332 A CN108054332 A CN 108054332A
- Authority
- CN
- China
- Prior art keywords
- pole piece
- duralumin
- duralumin pole
- battery
- row
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000737 Duralumin Inorganic materials 0.000 title claims abstract description 109
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000005491 wire drawing Methods 0.000 claims abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 14
- 239000010949 copper Substances 0.000 claims description 14
- 229910052802 copper Inorganic materials 0.000 claims description 14
- 235000010210 aluminium Nutrition 0.000 claims description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- 239000004411 aluminium Substances 0.000 claims description 6
- 239000011159 matrix material Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 238000003466 welding Methods 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000005476 soldering Methods 0.000 abstract description 5
- 239000000758 substrate Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0445—Multimode batteries, e.g. containing auxiliary cells or electrodes switchable in parallel or series connections
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The present invention relates to a kind of duralumin pole piece and battery modules, the duralumin pole piece includes always going out pole piece, biserial duralumin pole piece and single-row duralumin pole piece, it is described always to go out pole piece including using the rectangle duralumin pole piece that pressure-riveting process is combined and the hex head screw with flower tooth, it is electrically connected for the pole as total output stage with battery modules；The biserial duralumin pole piece is the H-shaped structure being made of a connecting portion and two weld parts, for multiple poles of adjacent two row battery in battery modules to be electrically connected；Other poles that the single-row duralumin pole piece is used in the battery electrode column for arranging outermost in battery modules two except total output stage are electrically connected；The surface of the rectangle duralumin pole piece, single-row duralumin pole piece and biserial duralumin pole piece scribbles wire-drawing surface.Battery modules include battery pack, strap and duralumin pole piece, and the duralumin pole piece uses laser welding with battery pack.Production efficiency of the present invention is high, and production cost is low, and when welding is simple and convenient, and soldering reliability is high.
Description
Technical field
The invention belongs to the technical field of New-energy electric vehicle, more particularly it relates to a kind of duralumin pole piece and
Battery modules.
Background technology
Increasingly mature and perfect with electric vehicle engineering, electric vehicle is widely used in daily life, electronic
Automobile is due to the more electricity of demand, and voltage needs matchs with motor, thus usually require by multiple batteries by connect with/
Or one battery modules of formation in parallel, currently used battery modules burst mode mainly have：1st, copper sheet is directly welded at battery core
The connection in series-parallel between battery is realized on electrode；2nd, using the copper electrode piece that can cover multiple battery core length, copper electrode on piece exists
The position of corresponding multiple battery core poles is welded multiple aluminum substrates, then is welded by aluminum substrate and battery electrode column, realize battery and
Connection；3rd, using shorter copper electrode piece, the aluminum substrate that multiple battery cores are covered with size is welded.These three pole piece connection in series-parallel are all
It is complicated there are welding procedure, the shortcomings that soldering reliability is poor, of high cost, and production automation degree is low.
Patent CN203466249U provides a kind of electrode slice, including the copper electrode piece from top to bottom welded together and aluminium
Electrode slice；Patent CN204156017U provides a kind of electrode slice, first electrode piece and second electrode piece including electrical connection；
Patent CN205406622U provides a kind of battery modules, hard total output electrode substrate and total output stage electrode including electrical connection
Piece；Patent CN105304852A provides a kind of electrode slice, including：For the battery with battery modules as total output stage
The aluminium electrode piece of pole electrical connection and for being connected copper electrode piece with external high pressure connection terminal；Patent CN204441374U
A kind of copper electrode piece is provided, the patent is by setting the dual output pole structure being connected with each other that there can be higher overcurrent energy
Power, also efficiently solve the problems, such as two and structure battery there are stability tests during voltage difference；Patent CN105914336A is provided
A kind of connection structure of electrical core of power battery component, it is described including connection copper sheet, battery core and multiple pole pieces being fixed in battery core
Pole piece is equipped with groove, and the pole piece is connected with each other by the connection copper sheet in embedded groove；Although above-mentioned patent is in certain journey
Being electrically connected for electrode slice and battery is optimized on degree, but remains welding procedure complexity, soldering reliability is poor, cost
The shortcomings that height, low production efficiency.
The content of the invention
Electrode slice is complicated with battery pack welding procedure during in order to solve production battery modules, and soldering reliability is poor, of high cost,
The problem of low production efficiency, the present invention provide a kind of duralumin pole piece and battery modules.
The present invention adopts the technical scheme that for the above-mentioned target of realization：
A kind of duralumin pole piece, for battery modules, the battery modules include stacking the matrix for forming NxM by multiple rectangular cells
Type battery pack, each battery are equipped with opposite polarity two rectangle poles, which is characterized in that the duralumin pole piece includes
Always go out pole piece, biserial duralumin pole piece and single-row duralumin pole piece；
It is described always to go out pole piece including using the rectangle duralumin pole piece and hex head screw that pressure-riveting process is combined, the hexagonal
The head of head screw carries flower tooth, and the rectangle duralumin pole piece includes the section that presses set gradually along cell thickness direction, arch
Shape section and planar section, the section that presses can cover two poles along cell thickness direction, and the hex head screw is arranged on
The centre position for the section that presses, the rectangle duralumin pole piece with the pole as total output stage of battery modules for being electrically connected, institute
Hex head screw is stated for being connected with external series connection copper bar；
The biserial duralumin pole piece is the H-shaped structure that is made of a connecting portion and two weld parts, each weld part bag
It includes along the multiple spaced planar sections in cell thickness direction and arcuate segment, the biserial duralumin pole piece is used for battery modules
In adjacent two row battery multiple poles electrical connection；
The single-row duralumin pole piece is included along the multiple spaced planar sections in cell thickness direction and arcuate segment, described single-row
Other poles that duralumin pole piece is used in the battery electrode column for arranging outermost in battery modules two except total output stage are electrically connected；
The surface of the rectangle duralumin pole piece, single-row duralumin pole piece and biserial duralumin pole piece scribbles wire-drawing surface.
The specification of the hex head screw is M4 ~ M8.
Each planar section can cover all a pole surface of battery.
The rectangle duralumin pole piece, single-row duralumin pole piece and biserial duralumin pole piece thickness are 1 ~ 4mm.
The material of the rectangle duralumin pole piece, single-row duralumin pole piece and biserial duralumin pole piece is 1060 fine aluminiums.
A kind of battery modules, including：It is stacked by multiple rectangular cells and forms NxM（N is the quantity in cell widths direction, N >=
2, M be the quantity along cell thickness direction）Matrix type battery pack and strap, the battery modules further include described hard
Aluminium pole piece, the duralumin pole piece are placed on battery pack the upper surface of, and the planar section of duralumin pole piece is contacted with the pole of battery, using sharp
Light welds together the pole of the planar section of duralumin pole piece and battery.
Beneficial effects of the present invention：1st, duralumin pole piece structure intensity is high, reduces pulling for vibration butt welding point, increases welding
Reliability；2nd, using hex head screw pressure-riveting process, hex head screw comes into full contact with rectangle duralumin pole piece, ensure that overcurrent
Area；3rd, using rectangle duralumin pole piece and with flower tooth hex head screw form pressure riveting structure provide enough torques and
Pull strength can effectively ensure that external series copper bar and always go out the bonding strength of pole piece；4th, it is extremely simple using biserial duralumin pole piece
For list rapidly by multiple row battery series/parallel, the structure design of H-type is cost-effective, alleviates module weight；5th, on duralumin pole piece
Wire-drawing surface reduces laser reflection, ensures welding quality, cost-effective；6th, the planar section of duralumin pole piece and the section that presses covering are entire
The upper surface of pole is welded using laser since the upper surface of planar section and the section that presses, and not only production efficiency is high, but also welds
Reliably.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is explosive view of the present invention；
Fig. 3 is the top view for always going out pole piece；
Fig. 4 is the side view for always going out pole piece；
Fig. 5 is the top view of biserial duralumin pole piece；
Fig. 6 is the side view of biserial duralumin pole piece；
Fig. 7 is the top view of single-row duralumin pole piece；
Fig. 8 is the side view of single-row duralumin pole piece；
Fig. 9 is Laser Welding map interlinking of the present invention.
In figure：1st, battery pack 2, strap 3, duralumin pole piece 31, always go out pole piece
32nd, biserial duralumin pole piece 33, single-row duralumin pole piece 311, rectangle duralumin pole piece 312, hex head screw 3111, press
Section 3112, arcuate segment 3113, planar section 321, weld part 322, connecting portion.
Specific embodiment
Electrode slice is complicated with battery pack welding procedure during in order to solve production battery modules, and soldering reliability is poor, of high cost,
The problem of production efficiency, the present invention provide a kind of duralumin pole piece and battery modules.With reference to diagram, the present invention is further explained.
As depicted in figs. 1 and 2, a kind of duralumin pole piece, for battery modules, the battery modules are included by multiple square electrics
Pond stacks the matrix type battery pack to form NxM（1）, each battery is equipped with opposite polarity two rectangle poles, described
Duralumin pole piece（3）Including always going out pole piece（31）, biserial duralumin pole piece（32）With single-row duralumin pole piece（33）.
As shown in Figure 2, Figure 3 and Figure 4, it is described always to go out pole piece（31）Rectangle including being combined using pressure-riveting process is hard
Aluminium pole piece（311）And hex head screw（312）, the hex head screw（312）Head carry flower tooth, the rectangle duralumin pole
Piece（311）Including the section that presses set gradually along cell thickness direction（3111）, arcuate segment（3112）And planar section（3113）,
The section that presses（3111）Two poles, the hex head screw can be covered along cell thickness direction（312）It is arranged on pressure
Riveting section（3111）Centre position, the rectangle duralumin pole piece（311）For the pole as total output stage with battery modules
Electrical connection, the hex head screw（312）For being connected with external series connection copper bar.
As shown in Fig. 2, Figures 5 and 6, the biserial duralumin pole piece（32）For by a connecting portion（322）With two weld parts
（321）The H-shaped structure of composition, each weld part（321）Including along the multiple spaced planes in cell thickness direction
Section（3113）And arcuate segment（3112）, the biserial duralumin pole piece（32）For by battery modules adjacent two row battery it is multiple
Pole is electrically connected.
As shown in Fig. 2, Fig. 7 and Fig. 8, the single-row duralumin pole piece（33）Including being set along the multiple intervals in cell thickness direction
The planar section put（3113）And arcuate segment（3112）, the single-row duralumin pole piece（33）For outermost in battery modules two to be arranged
Battery electrode column in except total output stage other poles be electrically connected.
The rectangle duralumin pole piece（311）, single-row duralumin pole piece（33）With biserial duralumin pole piece（32）Surface scribble
Wire-drawing surface.
The hex head screw（312）Specification be M4 ~ M8.
Each planar section（3113）A pole surface of battery can be covered all.
The rectangle duralumin pole piece（311）, single-row duralumin pole piece（33）With biserial duralumin pole piece（32）Thickness is 1 ~ 4mm.
The rectangle duralumin pole piece（311）, single-row duralumin pole piece（33）With biserial duralumin pole piece（32）Material be
1060 fine aluminiums.
As shown in Fig. 1,2 and 9, a kind of battery modules, including：It is stacked by multiple rectangular cells and forms NxM（N is that battery is wide
The quantity in direction is spent, N >=2, M are the quantity along cell thickness direction）Matrix type battery pack（1）And strap（2）, it is described
Battery modules further include the duralumin pole piece（3）, the duralumin pole piece（3）It is placed on battery pack（1）The upper surface of, duralumin pole piece
（3）Planar section（3113）With the section that presses（3111）It is contacted with the pole of battery, using laser by duralumin pole piece（3）Planar section
（3113）With the section that presses（3111）Weld together with the pole of battery.
The present invention reduces pulling for vibration butt welding point using the higher duralumin pole piece of structural strength, and increase welding can
By property；Using pressure-riveting process, hex head screw（312）With rectangle duralumin pole piece（311）It comes into full contact with, ensure that area of passage；
Using rectangle duralumin pole piece（311）With the hex head screw with flower tooth（312）The pressure riveting structure of composition provides enough torsions
Square and pull strength can effectively ensure that external series copper bar and always go out pole piece（31）Bonding strength；Using biserial duralumin pole piece
（32）It is extremely simple rapidly by multiple row battery series-parallel connection, the structure design of H-type is cost-effective, alleviates module weight；Duralumin
Pole piece（3）On wire-drawing surface reduce laser reflection, ensure welding quality, it is cost-effective；Duralumin pole piece（3）Planar section
（3113）With the section that presses（3111）The upper surface of entire pole is covered, using laser from planar section（3113）With the section that presses（3111）
Upper surface start to weld, not only production efficiency is high, but also welds reliable.
Claims (6)
1. a kind of duralumin pole piece, for battery modules, the battery modules include stacking the square for forming NxM by multiple rectangular cells
Formation battery pack（1）, each battery is equipped with opposite polarity two rectangle poles, which is characterized in that the duralumin pole
Piece（3）Including always going out pole piece（31）, biserial duralumin pole piece（32）With single-row duralumin pole piece（33）,
It is described always to go out pole piece（31）Including the rectangle duralumin pole piece combined using pressure-riveting process（311）And hex head screw
（312）, the hex head screw（312）Head carry flower tooth, the rectangle duralumin pole piece（311）Including along cell thickness
Section that direction was set gradually press（3111）, arcuate segment（3112）And planar section（3113）, the section that presses（3111）Along electricity
Pond thickness direction can cover two poles, the hex head screw（312）It is arranged on the section that presses（3111）Centre position, institute
State rectangle duralumin pole piece（311）It is electrically connected for the pole as total output stage with battery modules, the hex head screw
（312）For being connected with external series connection copper bar；
The biserial duralumin pole piece（32）For by a connecting portion（322）With two weld parts（321）The H-shaped structure of composition, institute
State each weld part（321）Including along the multiple spaced planar sections in cell thickness direction（3113）And arcuate segment
（3112）, the biserial duralumin pole piece（32）For multiple poles of adjacent two row battery in battery modules to be electrically connected；
The single-row duralumin pole piece（33）Including along the multiple spaced planar sections in cell thickness direction（3113）And arch
Section（3112）, the single-row duralumin pole piece（33）For in the battery electrode column that arranges outermost in battery modules two except always exporting
Other poles electrical connection of pole；
The rectangle duralumin pole piece（311）, single-row duralumin pole piece（33）With biserial duralumin pole piece（32）Surface scribble wire drawing
Face.
A kind of 2. duralumin pole piece according to claim 1, which is characterized in that the hex head screw（312）Specification be
M4~M8。
A kind of 3. duralumin pole piece according to claim 1, which is characterized in that each planar section（3113）It can cover completely
Cover a pole surface of battery.
A kind of 4. duralumin pole piece according to claim 1, which is characterized in that the rectangle duralumin pole piece（311）, it is single-row hard
Aluminium pole piece（33）With biserial duralumin pole piece（32）Thickness is 1 ~ 4mm.
A kind of 5. duralumin pole piece according to claim 1, which is characterized in that the rectangle duralumin pole piece（311）, it is single-row hard
Aluminium pole piece（33）With biserial duralumin pole piece（32）Material be 1060 fine aluminiums.
6. a kind of battery modules form NxM including being stacked by multiple rectangular cells（N is the quantity in cell widths direction, N >=2, M
It is the quantity along cell thickness direction）Matrix type battery pack（1）And strap（2）, which is characterized in that it further includes according to power
Profit requires the duralumin pole piece any one of 1-5（3）, the duralumin pole piece（3）It is placed on battery pack（1）The upper surface of, duralumin
Pole piece（3）Planar section（3113）With the section that presses（3111）It is contacted with the pole of battery, using laser by duralumin pole piece（3）It is flat
Face section（3113）With the section that presses（3111）Weld together with the pole of battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711178808.9A CN108054332A (en) | 2017-11-23 | 2017-11-23 | A kind of duralumin pole piece and battery modules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711178808.9A CN108054332A (en) | 2017-11-23 | 2017-11-23 | A kind of duralumin pole piece and battery modules |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108054332A true CN108054332A (en) | 2018-05-18 |
Family
ID=62119230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711178808.9A Pending CN108054332A (en) | 2017-11-23 | 2017-11-23 | A kind of duralumin pole piece and battery modules |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108054332A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109037572A (en) * | 2018-07-26 | 2018-12-18 | 东莞市中质电子科技有限公司 | A kind of new energy battery modules conduction connecting structure |
| CN113659187A (en) * | 2021-07-22 | 2021-11-16 | 风帆有限责任公司 | Novel storage battery and assembly process |
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| CN202905894U (en) * | 2012-09-19 | 2013-04-24 | 天津力神电池股份有限公司 | Square lithium ion power battery module |
| CN103824992A (en) * | 2014-03-13 | 2014-05-28 | 苏州易美新思新能源科技有限公司 | Pectinate flexible connection structure for energy storage battery |
| CN104064722A (en) * | 2013-03-22 | 2014-09-24 | 株式会社东芝 | Bus Bar, Electronic Component, And Manufacturing Method Of Electronic Component |
| CN203910900U (en) * | 2014-06-09 | 2014-10-29 | 宁德时代新能源科技有限公司 | Power battery pack |
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| CN204271173U (en) * | 2014-12-16 | 2015-04-15 | 苏州易美新思新能源科技有限公司 | A kind of bus-bar supporting power brick high-power applications |
| CN205406622U (en) * | 2016-03-11 | 2016-07-27 | 宁德时代新能源科技股份有限公司 | Battery module |
| CN205645965U (en) * | 2016-04-28 | 2016-10-12 | 青海时代新能源科技有限公司 | Battery module coupling assembling |
| CN206116504U (en) * | 2016-09-05 | 2017-04-19 | 深圳市科陆电子科技股份有限公司 | Battery module connection structure based on copper bar carrier |
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2017
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|---|---|---|---|---|
| CN202905894U (en) * | 2012-09-19 | 2013-04-24 | 天津力神电池股份有限公司 | Square lithium ion power battery module |
| CN104064722A (en) * | 2013-03-22 | 2014-09-24 | 株式会社东芝 | Bus Bar, Electronic Component, And Manufacturing Method Of Electronic Component |
| CN103824992A (en) * | 2014-03-13 | 2014-05-28 | 苏州易美新思新能源科技有限公司 | Pectinate flexible connection structure for energy storage battery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109037572A (en) * | 2018-07-26 | 2018-12-18 | 东莞市中质电子科技有限公司 | A kind of new energy battery modules conduction connecting structure |
| CN113659187A (en) * | 2021-07-22 | 2021-11-16 | 风帆有限责任公司 | Novel storage battery and assembly process |
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