CN205406629U - Cylinder lithium cell group mass flow body - Google Patents
Cylinder lithium cell group mass flow body Download PDFInfo
- Publication number
- CN205406629U CN205406629U CN201620166595.2U CN201620166595U CN205406629U CN 205406629 U CN205406629 U CN 205406629U CN 201620166595 U CN201620166595 U CN 201620166595U CN 205406629 U CN205406629 U CN 205406629U
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- layer
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 24
- 238000003466 welding Methods 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 19
- 238000005476 soldering Methods 0.000 claims abstract description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 66
- 229910052759 nickel Inorganic materials 0.000 claims description 33
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 19
- 229910052802 copper Inorganic materials 0.000 claims description 19
- 239000010949 copper Substances 0.000 claims description 19
- 229910000679 solder Inorganic materials 0.000 claims description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 238000007747 plating Methods 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000009977 dual effect Effects 0.000 abstract description 3
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 229910000570 Cupronickel Inorganic materials 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000012546 transfer Methods 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
Landscapes
- Cell Electrode Carriers And Collectors (AREA)
Abstract
The utility model relates to a cylinder lithium cell group mass flow body, the mass flow body is two -layer structure, divide into A layer and B layer, wherein the A layer by resistivity greatly, easy welding's material makes, the B layer is made by resistivity material little, that easily switch on the heavy current, all be provided with through -hole and locating hole on A layer and the B layer, through -hole on the A layer equals and corresponds with the through -hole quantity on the B layer and sets up, and locating hole on the A layer equals just to correspond the setting with locating hole quantity on the B layer, and A layer and the soldering of B layer are as an organic whole. The utility model discloses a reflow process, with easy welding's material and easily switch on the heavy current not easy welding's material link together, the dual purpose that has realized the welding and switched on the heavy current, with low costs moreover, make efficiently, manufacturing method is simple quick, easy large -scale production is suitable for the industrial circle extensively to use widely.
Description
Technical field
This utility model belongs to new forms of energy dynamic lithium battery field, is specifically related to a kind of cylindrical lithium battery group collector.
Background technology
Along with the development of new-energy automobile, become day by day to strengthen to the demand of electrokinetic cell.nullDynamic lithium battery group manufacture method has a variety of at present，The monomer adopted has Soft Roll、Mould shell side shape、Cylinder box hat，There is employing high-capacity unit series-parallel，Also there is employing low capacity monomer series-parallel，Between high-capacity unit, connection in series-parallel fastens generally by bolt and nut，Connect sheet and be usually copper sheet or copper bar，Low capacity monomer generally adopts 18650 or 26650 box hat cylinders，The interconnection mode of box hat cylinder is usually resistance spot welding，Interconnection material generally adopts nickel plated steel strip、Nickel plating sheet iron strip、Stainless steel band or pure nickel band，These resistivity of material are all relatively larger，The resistivity of ferrum is 97.1m Ω * mm2/m，Nickel is 70m Ω * mm2/m，Stainless is 1.6 Ω * mm2/m，For the set of cells of small area analysis，Material heating is also little，All enough，But for great current cell group，The heating of these materials all can be very big，Be not suitable for doing big current collector body.
The resistivity of copper only has 16.8m Ω * mm2/m, is stainless 90 points of sons one, 1/6th of ferrum, 1/4th of nickel, and price only has 1/6th of nickel, is ideal current collector body material.But owing to the resistivity of copper is low, fusing point is high and good heat-transfer, so resistance spot welding is difficult to.
In order to spot welding interconnection realize again big current lead-through, it is necessary to combined by bi-material, a kind of is be suitable for the pure nickel of spot welding, nickel plating sheet iron strip, nickel plated steel strip or stainless steel band, a kind of copper material being to be suitable for turning on big electric current.Method conventional at present includes: 1) directly use copper nickel composite material, and relatively costly, welding difficulty is high, is still not suitable for doing big current collector body；2) copper nickel composite material being made little connection sheet, then with copper sheet by ultrasonic bond, spot welding is easy, and cost is still high；3) by nickel plated steel strip, nickel plating sheet iron strip, stainless steel band or pure nickel band, being combined with each other by the method for upset butt welding, this method needs powerful mash welder, and mash welder abrasion is relatively big, and efficiency is low.
Because the defect that above-mentioned existing collector exists, the present inventor manufactures rich experience and Professional knowledge for many years based on being engaged in this type of product design, actively in addition research and innovation, to founding a kind of cylindrical lithium battery group collector, make collector not only easily spot welding but also big current lead-through can be realized, so that it has more practicality.Through constantly research, design, finally create this utility model having practical value.
Summary of the invention
The purpose of this utility model is in that to provide a kind of cylindrical lithium battery group collector, adopt reflux technique, it is readily able to the material of welding, such as nickel plated steel strip, nickel plating sheet iron strip, stainless steel band or pure nickel band etc., link together with being prone to turn on the material that big electric current not easily welds, it is achieved that weld and turn on the dual purpose of big electric current, and cost is low, make efficiency is high, is greatly promoted the development of new-energy automobile.
The purpose of this utility model and solve it and technical problem is that and realize by the following technical solutions.
According to a kind of cylindrical lithium battery group collector that the utility model proposes, wherein, described collector is double-layer structure, is divided into A layer and B layer, and wherein A layer material big by resistivity, easily welding is made, and the material of the B layer big electric current of conducting little by resistivity, easy is made；
Being provided with on through hole 1 and hole 2, B, location layer on described A layer and be provided with through hole 3 and hole 4, location, the through hole 1 on described A layer is equal with through hole 3 quantity on B layer and is correspondingly arranged, and the hole 2, location on A layer is equal with hole, location 4 quantity on B layer and is correspondingly arranged；
Described A layer and B layer soldering are integrated.
The purpose of this utility model and solve its technical problem and also can be applied to the following technical measures to achieve further.
Aforesaid a kind of cylindrical lithium battery group collector, wherein, the through hole 1 on described A layer is " one " font or " ten " font or " work " font；Through hole 3 on described B layer is square or circular.
Aforesaid a kind of cylindrical lithium battery group collector, wherein, described A layer is the one in nickel sheet, nickel plating sheet iron strip, nickel plated steel strip or stainless steel band, and B layer is copper sheet.
Aforesaid a kind of cylindrical lithium battery group collector, wherein, is integrated A layer and B layer soldering with solder(ing) paste.
Aforesaid a kind of cylindrical lithium battery group collector, wherein, smears solder(ing) paste at A layer or B layer or all smears solder(ing) paste in A, B two-layer.
The preparation method of a kind of aforesaid cylindrical lithium battery group collector, wherein, comprises the following steps:
1) the good A layer of cross cutting and B layer are got out；
2) on A layer or B layer or A, B two-layer, it is coated with solder(ing) paste, then A, B two-layer is compressed by positioning hole alignment；
3) A, B two-layer compressing alignment is put in return current machine or heated oven, by backflow program or baking oven, scolding tin is melted, make A, B two-layer realize welding；
4) clean: by the scaling powder of residual and dirt removal, namely obtain the collector for cylindrical lithium battery group.
The preparation method of aforesaid collector, wherein, step (2) is compressed by fixing fixture alignment.
The preparation method of aforesaid collector, wherein, step (2) is: first in the scolding tin junction perforate of A layer or B layer, then A layer and B layer are alignd, being coated with solder(ing) paste at tapping, what solder(ing) paste was coated with is sized larger than the size of perforate, makes solder(ing) paste contact A layer and B layer simultaneously.
This utility model compared with prior art has clear advantage and beneficial effect, by technique scheme, this utility model a kind of cylindrical lithium battery group collector can reach suitable technological progress and practicality, and has the extensive value in industry, and it at least has the advantage that
(1), simple in construction of the present utility model, and adopt reflux technique, it is readily able to the material and being prone to of welding turn on the copper product that big electric current not easily welds and link together, it is achieved that weld and turn on the dual purpose of big electric current, solve a difficult problem for current cylindrical electrical core interconnection spot welding.
(2), this utility model manufacture method simple, thus make very fast, greatly improve work efficiency, traditional method makes a collector to be needed the time of 5-10min, to adopt method of the present utility model then only to need the time of 10s.
(3), this utility model cost low, manufacture method is simple and quick, can adopt artificial or machine operation, thus be suitable for large-scale production, meet cost benefit, have the value in industry, be suitable to industrial circle and be widely popularized use.
In sum, this utility model one cylindrical lithium battery group collector has significant progress technically, and has obvious good effect, is really a new and innovative, progressive, practical new design.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be practiced according to the content of description, and in order to above and other purpose of the present utility model, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, describe in detail as follows.
Accompanying drawing explanation
Fig. 1 is A layer of the present utility model；
Fig. 2 is B layer of the present utility model；
Fig. 3 is the A layer scribbling solder(ing) paste；
Fig. 4 is the collector made.
[main element symbol description]
The hole, location on through hole 2:A layer on 1:A layer
The hole, location on through hole 4:B layer on 3:B layer
5: solder(ing) paste
Detailed description of the invention
For further setting forth that this utility model is reach technological means and effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to according to a kind of cylindrical lithium battery group collector that the utility model proposes, its detailed description of the invention, structure, feature and effect thereof, describe in detail as after.
A kind of cylindrical lithium battery group collector, for double-layer structure, is divided into A layer and B layer, and wherein, A layer material big by resistivity, easily welding is made, as: nickel sheet, nickel plating sheet iron strip, nickel plated steel strip or stainless steel band；The copper product of the B layer big electric current of conducting little by resistivity, easy is made.
Being provided with on through hole 1 and hole 2, B, location layer on described A layer and be provided with through hole 3 and hole 4, location, the through hole 1 on described A layer is equal with through hole 3 quantity on B layer and is correspondingly arranged, and the hole 2, location on A layer is equal with hole, location 4 quantity on B layer and is correspondingly arranged；And A layer and B layer solder(ing) paste soldering are integrated.
In described collector, the quantity in hole 2, location or hole 4, location can be 4.
Above-mentioned collector, the through hole 1 on A layer is " one " font or " ten " font or " work " font；Through hole 3 on B layer is square or circular.Described through hole 1 and through hole 3 need for follow-up cylindrical electrical core spot welding.
For nickel sheet and copper sheet, the preparation method of described collector comprises the following steps:
1) the good copper sheet of cross cutting and nickel sheet are got out；
2) in nickel sheet, it is coated with solder(ing) paste, then nickel sheet and copper sheet are compressed by positioning hole alignment or compressed by fixing fixture alignment；
3) sheet metal compressing alignment is put in return current machine or heated oven, by backflow program or baking oven, scolding tin is melted, make nickel sheet and copper sheet realize welding；
4) clean: by the scaling powder of residual and dirt removal, namely obtain the collector for cylindrical lithium battery group.
In above-mentioned preparation method, step (2) also only can be coated with solder(ing) paste on copper sheet, or is all coated with solder(ing) paste in nickel sheet and copper sheet.
Or, in step (2), first in the scolding tin junction perforate of copper sheet or nickel sheet, then copper sheet and nickel sheet being alignd, be coated with solder(ing) paste at tapping, what solder(ing) paste was coated with is sized larger than the size of perforate, make solder(ing) paste can contact copper sheet and nickel sheet simultaneously, then carry out step (3).
The above, it it is only preferred embodiment of the present utility model, not this utility model is done any pro forma restriction, although this utility model is disclosed above with preferred embodiment, but it is not limited to this utility model, any those skilled in the art, without departing within the scope of technical solutions of the utility model, when the technology contents of available the disclosure above makes a little change or is modified to the Equivalent embodiments of equivalent variations, in every case it is the content without departing from technical solutions of the utility model, any simple modification above example made according to technical spirit of the present utility model, equivalent variations and modification, all still fall within the scope of technical solutions of the utility model.
Claims (4)
1. a cylindrical lithium battery group collector, it is characterised in that described collector is double-layer structure, is divided into A layer and B layer, and wherein A layer material big by resistivity, easily welding is made, and the material of the B layer big electric current of conducting little by resistivity, easy is made；
Described A layer is provided with through hole (1) and hole, location (2), B layer is provided with through hole (3) and hole, location (4), through hole (1) on described A layer is equal with through hole (3) quantity on B layer and is correspondingly arranged, and the hole, location (2) on A layer is equal with hole, location (4) quantity on B layer and is correspondingly arranged；
Described A layer and B layer soldering are integrated.
2. cylindrical lithium battery group collector as claimed in claim 1 a kind of, it is characterised in that the through hole (1) on described A layer is " one " font or " ten " font or " work " font；Through hole (3) on B layer is for square or circular.
3. a kind of cylindrical lithium battery group collector as claimed in claim 1, it is characterised in that described A layer is the one in nickel sheet, nickel plating sheet iron strip, nickel plated steel strip or stainless steel band, and B layer is copper sheet.
4. a kind of cylindrical lithium battery group collector as claimed in claim 1, it is characterised in that A layer and B layer soldering are integrated with solder(ing) paste.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620166595.2U CN205406629U (en) | 2016-03-04 | 2016-03-04 | Cylinder lithium cell group mass flow body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620166595.2U CN205406629U (en) | 2016-03-04 | 2016-03-04 | Cylinder lithium cell group mass flow body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205406629U true CN205406629U (en) | 2016-07-27 |
Family
ID=56444992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620166595.2U Active CN205406629U (en) | 2016-03-04 | 2016-03-04 | Cylinder lithium cell group mass flow body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205406629U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105633417A (en) * | 2016-03-04 | 2016-06-01 | 洛阳鑫光锂电科技有限公司 | Current collector of cylindrical lithium battery pack |
-
2016
- 2016-03-04 CN CN201620166595.2U patent/CN205406629U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105633417A (en) * | 2016-03-04 | 2016-06-01 | 洛阳鑫光锂电科技有限公司 | Current collector of cylindrical lithium battery pack |
| CN105633417B (en) * | 2016-03-04 | 2018-05-11 | 洛阳鑫光锂电科技有限公司 | A kind of cylindrical lithium battery group collector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210812 Address after: 471000 room 607, building 50, yard 8, Stadium Road, Xigong District, Luoyang City, Henan Province Patentee after: Cao Guangming Address before: 471000 6th floor, block D, torch Park, Yanguang Road, high tech Development Zone, Luoyang City, Henan Province Patentee before: LUOYANG XINGUANG LITHIUM TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |