CN108417768A - A kind of multicomponent composition metal band for power battery conductive connecting piece - Google Patents
A kind of multicomponent composition metal band for power battery conductive connecting piece Download PDFInfo
- Publication number
- CN108417768A CN108417768A CN201810370103.5A CN201810370103A CN108417768A CN 108417768 A CN108417768 A CN 108417768A CN 201810370103 A CN201810370103 A CN 201810370103A CN 108417768 A CN108417768 A CN 108417768A
- Authority
- CN
- China
- Prior art keywords
- layers
- spcc
- thickness
- metal band
- composition metal
- 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
- 239000002184 metal Substances 0.000 title claims abstract description 53
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 53
- 239000000203 mixture Substances 0.000 title claims abstract description 30
- 239000002131 composite material Substances 0.000 claims abstract description 16
- 238000005272 metallurgy Methods 0.000 claims abstract description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 88
- 229910052759 nickel Inorganic materials 0.000 claims description 27
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 14
- 229910052802 copper Inorganic materials 0.000 claims description 14
- 239000010949 copper Substances 0.000 claims description 14
- 238000005516 engineering process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000009713 electroplating Methods 0.000 claims 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 229910052744 lithium Inorganic materials 0.000 abstract 1
- 238000003466 welding Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 93
- 239000000463 material Substances 0.000 description 14
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 9
- 238000007747 plating Methods 0.000 description 6
- 229910000570 Cupronickel Inorganic materials 0.000 description 5
- 239000002585 base Substances 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 4
- 239000000470 constituent Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002344 surface layer Substances 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
- H01M50/528—Fixed electrical connections, i.e. not intended for disconnection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
The invention discloses a kind of multicomponent composition metal bands for power battery conductive connecting piece, including SPCC layers and CU layers, it is bonded by Physical Metallurgy between described SPCC layers and CU layer, the SPCC layers of outer surface is provided with Ni layers, the thickness of the multicomponent composition metal band is 0.1 0.5mm, it is SPCC layers described, the thickness proportion that CU layers of thickness accounts for entire composite metal belt is respectively 30% 45%, 50% 65%, the thickness proportion that Ni layers of the thickness accounts for entire composite metal belt is 2.5% 20%, the resistance spot welding of the multicomponent composition metal band, electric conductivity, flexibility, excellent combination properties such as corrosion resistance and cost-effective, adapt to the application of new energy dynamic lithium battery.
Description
Technical field
The present invention relates to a kind of multicomponent composition metal bands for power battery conductive connecting piece.
Background technology
Under energy crisis and the pressure of problem of environmental pollution, safe and environment-friendly, the energy saving master for having become current development of automobile
Topic, new-energy automobile by traffic, the great attention of energy sector and are vigorously supported because of the free of contamination advantage of its energy-saving and environmental protection,
Power resources of the power battery as electric vehicle are the critical components of electric vehicle.
In the prior art, in battery pack, it is 1 that inside and outside conductive connecting piece, which mostly uses greatly pure nickel band or thickness proportion,:1 copper
Nickel composite band, though pure nickel has relatively low comprehensive performance, although moreover, cupro-nickel has higher comprehensive performance, cost is higher, limit
It is made in high-power or high-multiplying-power battery product application, and in pure nickel material, in necessary plating or chemical plating manufacture
In the process, it needing to will produce the chemical substances such as a large amount of acid, alkali, environmental pollution is extremely serious, if using emission treatment,
Production cost can be increased.
Invention content
The present invention for overcome the deficiencies in the prior art, provides a kind of multicomponent for power battery conductive connecting piece
The structure of composition metal band, the base material can replace pure nickel and cupro-nickel base material, and the more existing pure nickel of the base material and cupro-nickel
Base material, it is good not only to have may be implemented comprehensive performance, but also can reduce production cost.Concrete scheme is as follows：
A kind of multicomponent composition metal band for power battery conductive connecting piece, including SPCC layers and CU layers, wherein
It is bonded by Physical Metallurgy between described SPCC layers and CU layer, the SPCC layers of outer surface is provided with Ni layers, the multicomponent
The thickness of composition metal band is 0.1-0.5mm, and SPCC layers described, CU layers of thickness accounts for the thickness proportion of entire composite metal belt
Respectively 30%-45%, 50%-65%, the thickness proportion that Ni layers of the thickness accounts for entire composite metal belt are 2.5%-
20%.
As a kind of improvement of the present invention, the Ni layers (nickel layer) of described SPCC layers and its outer surface pass through Physical Metallurgy key
It closes, Ni layers of the thickness accounts for the thickness proportion 5%-20% of entire composite metal belt.
As another improvement of the invention, the Ni layers of the SPCC layers of outer surface are to be plated in SPCC layers by plating mode
On outer surface, the CU layers of outer surface is provided with Ni layers, and the nickel layer of the CU layers of outer surface is plated by plating mode
It is SPCC layers described on CU layers of outer surface) the sum of the Ni layers of outer surface and the Ni layer thickness of the layers of copper outer surface account for
The thickness proportion 5% of entire composition metal band.
Further, the Ni layers of the SPCC layers of outer surface and the Ni layer thickness of the CU layers of outer surface account for whole
The ratio of the thickness of a composition metal band is 2.5%.
In the above structure, described Ni layers of nickel purity is not less than 99.5%, and described CU layers of copper purity is not less than
99.90%.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention provides a kind of power battery conductive connecting piece,
The connection sheet is combined by multiple layer metal base material, and the material selection of each layer metal, relative position and thickness proportion
It rationally designs, can so that the electric conductivity of connection sheet, weldability are better and material is cost-effective.Specifically, fully considering
Each layer metal advantage and disadvantage " learn from other's strong points to offset one's weaknesses, Each answers the purpose intended " to each metal, have reached comprehensive performance and have been better than current material and cost price
The lower overall effect of lattice.
Description of the drawings
Fig. 1 is the first example structure schematic diagram of the invention.
Fig. 2 is second of example structure schematic diagram of the invention.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
When power battery requires high magnification, high power capacity, fast charge and discharge, while considering the electric conductivity of integral material, weldability
And material cost design requirement, reduce production cost.A kind of multicomponent for power battery conductive connecting piece presented below is multiple
Close two kinds of example structures of sheet metal strip.
The conductivity calculation of multicomponent composition metal band:
ρIt leads=1.72/ ρ
Wherein, ρIt leadsFor the conductivity of multicomponent composition metal band, ρ is the resistivity of multicomponent composition metal band, ρi
For each constituent element metallic conductivity, tiThe thickness proportion of entire composition metal band is accounted for for each constituent element metal；
Multicomponent composition metal band calculation of price formula：
Wherein, p is the price of multicomponent composition metal band, piFor each constituent element metal price, tiIt is accounted for for each constituent element metal whole
The thickness proportion of a composition metal band；
Embodiment one：
See Fig. 1 be a kind of multicomponent composition metal band for power battery conductive connecting piece a kind of structure, three layers
Metal tape is made of Ni layers 1 (nickel layer), SPCC layers 2 (mild steel) and CU layers 3 (layers of copper) successively, wherein 1 (nickel of Ni layers
Layer), be bonded by Physical Metallurgy between SPCC layers 2 (mild steel) and CU layers 3 (layers of copper), the thickness of three-layer metal band is 0.1-
0.5mm。
Wherein, Ni layers 1 (nickel layer), SPCC layers 2 (mild steel), CU layers 3 (layers of copper) thickness account for entire composite metal belt
Thickness proportion is respectively 2.5%-20%, 30%-45%, 50%-65%.
The different ratio of five groups of Ni layers 1 (nickel layer), SPCC layers 2 (mild steel), CU layers 3 (layers of copper) is chosen in the present embodiment
Example, according to the conductivity calculation of multicomponent composition metal band, calculates specific conductivity, as shown in the table：
Embodiment two：
See Fig. 2 be a kind of multicomponent composition metal band for power battery conductive connecting piece another structure, four
Layer metal tape, is made of Ni layers 1 (nickel layer), SPCC layers 2 (mild steel) and CU layers (layers of copper), Ni layers 1 (nickel layer) successively,
In, it is bonded by Physical Metallurgy between SPCC layers 2 (mild steel) and CU layers 3 (layers of copper), the work that Ni layers 1 (nickel layer) pass through plating
Skill is plated in the surface of SPCC layers 2 (cold rolling carbon steel) and CU layers 3 (layers of copper) respectively, and the thickness of four layers of metal tape is 0.1-0.5mm.
Wherein, SPCC layers 2 (mild steel), CU layers 3 thickness to account for the thickness proportion of entire composite metal belt be respectively 30%-
45%, 50%-65%, the thickness proportion that two layers of Ni layers 1 (nickel layer) thickness summation accounts for entire composite metal belt are 5%, it is preferable that
Two layers of Ni layers 1 (nickel layer) thickness proportion is respectively 2.5%.
Chosen in the present embodiment five groups of selection Ni layers 1 (nickel layer), SPCC layers 2 (mild steel), CU layers 3 (layers of copper), Ni layers
The different ratio of 1 (nickel layer) calculates specific conductivity, such as according to the conductivity calculation of multicomponent composition metal band
Shown in following table：
In both examples above, obtain the conductivity of the internal resistance of conductive connecting piece 2.5 ± 0.2 μ Ω * cm-3.0 ±
In 0.2 sections μ Ω * cm.
In the prior art, thickness proportion identical with structure of the invention appearance and size is 1:1 cupro-nickel composite band, it is conductive
Rate and structure of the invention difference are little, but price is at least higher by 30% than structure of the invention.
In the prior art, pure nickel band identical with structure of the invention appearance and size, price is essentially identical with structure of the invention,
Its conductivity is at least lower by 63% than structure of the invention.
Further, in both the above examples of implementation, the nickel purity of Ni layers 1 (nickel layer) is not less than 99.5%, CU layers, 2 (copper
Layer) copper purity be not less than 99.90%.
Further, in both the above examples of implementation, Physical Metallurgy bonding, it is possible to reduce the localized contact electricity of material
Resistance, to improve the electric conductivity of entire composite material, the temperature of conductive connecting piece in application process, which rises oneself, becomes measurement battery matter
One of the key index of quality is measured, its tissue of the laminar composite of Physical Metallurgy bond characters is the finest and close, thus also most has
Conducive to raising materials conductive characteristic.
Further, in both the above examples of implementation, since surface layer is to heat to spread in blanketing with inert gas after plating,
By rolling, enhance the bond strength of nickel coating, reach fine and close ultra-thin nickel layer so that this multicomponent composite material has excellent
Anti-corrosion reliability.
Further, in both the above examples of implementation, middle layer uses relatively hard SPCC (mild steel) so that opposite
In other monometallic materials, flexibility is more preferable.
Although the explanation of the preferred embodiment of the present invention has been described in above-mentioned picture and text, those skilled in the art one
Denier knows this creatively concept, then other change and modification can be done to these embodiments, so, appended right is wanted
It asks and is intended to be construed to include preferred embodiment and fall into having altered and changing for the scope of the invention.Obviously, the skill of this field
Art personnel can carry out various modifications the present invention and modification is without departing from thought and range of the invention, in this way, Shang Ruo is to this
These modification and variation of invention belong within the scope of the claims in the present invention and its equivalent technologies, then the invention is intended to include this
Including a little changes and deformation.
Claims (5)
1. a kind of multicomponent composition metal band for power battery conductive connecting piece, it is characterised in that：Including SPCC layers and
CU layers, wherein it is bonded by Physical Metallurgy between described SPCC layers and CU layer, the SPCC layers of outer surface is provided with Ni layers,
The thickness 0.1-0.5mm of the multicomponent composition metal band, SPCC layers described, CU layers of thickness account for entire composite metal belt
Thickness proportion is respectively 30%-45%, 50%-65%, and the thickness proportion that Ni layers of the thickness accounts for entire composite metal belt is
2.5%-20%.
2. multicomponent composition metal band according to claim 1, it is characterised in that：Described SPCC layers with its outer surface
Ni layers are bonded by Physical Metallurgy, and Ni layers of the thickness accounts for the thickness proportion 5%-20% of entire composite metal belt.
3. multicomponent composition metal band according to claim 1, it is characterised in that：The Ni layers of the SPCC layers of outer surface
It is to be plated on SPCC layers of outer surface by electroplating technique, the CU layers of outer surface is provided with Ni layers, the outside CU layers of
The nickel layer on surface is plated on CU layers of outer surface by electroplating technology, Ni layers and the layers of copper of the SPCC layers of outer surface
The sum of Ni layer thickness of outer surface accounts for the thickness proportion 5% of entire composition metal band.
4. multicomponent composition metal band according to claim 3, it is characterised in that：The Ni layers of the SPCC layers of outer surface
The ratio that the thickness of entire composition metal band is accounted for the Ni layer thickness of the CU layers of outer surface is 2.5%.
5. according to multicomponent composition metal band described in claim 1-4 any one, it is characterised in that：Ni layers described (nickel layer)
Nickel purity be not less than 99.5%, described CU layer of copper purity is not less than 99.90%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810370103.5A CN108417768A (en) | 2018-04-24 | 2018-04-24 | A kind of multicomponent composition metal band for power battery conductive connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810370103.5A CN108417768A (en) | 2018-04-24 | 2018-04-24 | A kind of multicomponent composition metal band for power battery conductive connecting piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108417768A true CN108417768A (en) | 2018-08-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810370103.5A Pending CN108417768A (en) | 2018-04-24 | 2018-04-24 | A kind of multicomponent composition metal band for power battery conductive connecting piece |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109759688A (en) * | 2018-12-28 | 2019-05-17 | 天津锦泰勤业精密电子有限公司 | A kind of battery connecting piece pressure welding fusion device and production equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1824497A (en) * | 2005-02-23 | 2006-08-30 | 佛山精密电工合金有限公司 | Nickel substitute laminated composite metal belt, foil, sheet for saving pure nickel |
| CN201204070Y (en) * | 2008-05-20 | 2009-03-04 | 吴厚为 | Novel composite metal material |
| CN102514288A (en) * | 2011-12-07 | 2012-06-27 | 常熟市东涛金属复合材料有限公司 | Novel composite metal material |
| CN103407222A (en) * | 2013-08-17 | 2013-11-27 | 张家港保税区金企鹅贸易有限公司 | Sheet metal of multi-layer structure |
| CN204441381U (en) * | 2015-01-23 | 2015-07-01 | 深圳市中金岭南科技有限公司 | Secondary cell conductive connecting piece and multicomponent composition metal band |
| CN208298919U (en) * | 2018-04-24 | 2018-12-28 | 黄奎 | A kind of multicomponent composition metal band for power battery conductive connecting piece |
-
2018
- 2018-04-24 CN CN201810370103.5A patent/CN108417768A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1824497A (en) * | 2005-02-23 | 2006-08-30 | 佛山精密电工合金有限公司 | Nickel substitute laminated composite metal belt, foil, sheet for saving pure nickel |
| CN201204070Y (en) * | 2008-05-20 | 2009-03-04 | 吴厚为 | Novel composite metal material |
| CN102514288A (en) * | 2011-12-07 | 2012-06-27 | 常熟市东涛金属复合材料有限公司 | Novel composite metal material |
| CN103407222A (en) * | 2013-08-17 | 2013-11-27 | 张家港保税区金企鹅贸易有限公司 | Sheet metal of multi-layer structure |
| CN204441381U (en) * | 2015-01-23 | 2015-07-01 | 深圳市中金岭南科技有限公司 | Secondary cell conductive connecting piece and multicomponent composition metal band |
| CN208298919U (en) * | 2018-04-24 | 2018-12-28 | 黄奎 | A kind of multicomponent composition metal band for power battery conductive connecting piece |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109759688A (en) * | 2018-12-28 | 2019-05-17 | 天津锦泰勤业精密电子有限公司 | A kind of battery connecting piece pressure welding fusion device and production equipment |
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