CN112635920A - Aluminum bar for new energy battery and forming method thereof - Google Patents
Aluminum bar for new energy battery and forming method thereof Download PDFInfo
- Publication number
- CN112635920A CN112635920A CN202011546678.1A CN202011546678A CN112635920A CN 112635920 A CN112635920 A CN 112635920A CN 202011546678 A CN202011546678 A CN 202011546678A CN 112635920 A CN112635920 A CN 112635920A
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- Prior art keywords
- aluminum
- base material
- new energy
- conductive particles
- oxidation film
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 36
- 238000000576 coating method Methods 0.000 claims abstract description 27
- 239000011248 coating agent Substances 0.000 claims abstract description 26
- 239000002245 particle Substances 0.000 claims abstract description 26
- 238000005260 corrosion Methods 0.000 claims abstract description 19
- 230000007797 corrosion Effects 0.000 claims abstract description 19
- 230000003647 oxidation Effects 0.000 claims abstract description 19
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 19
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 238000004080 punching Methods 0.000 claims description 15
- 239000000758 substrate Substances 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 4
- 239000004917 carbon fiber Substances 0.000 claims description 4
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 4
- 239000002041 carbon nanotube Substances 0.000 claims description 4
- 239000002071 nanotube Substances 0.000 claims description 4
- 238000005097 cold rolling Methods 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 239000004519 grease Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000005098 hot rolling Methods 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 239000010687 lubricating oil Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 6
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 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
- 239000011888 foil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
Images
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
- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention provides an aluminum bar for a new energy battery and a forming method thereof, wherein the aluminum bar comprises an aluminum bar base material, a plurality of bulges are uniformly arranged on the aluminum bar base material, the bulges divide the aluminum bar base material into a plurality of sub-bars clamped with battery terminals, mounting holes penetrating through the aluminum bar base material are symmetrically arranged on two sides of each sub-bar, a square groove used for clamping with the battery terminals is arranged in the middle of each sub-bar, and a through hole is arranged in the middle of each square groove; the surface of the aluminum row base material is contacted with air to generate a layer of oxidation film, conductive particles are distributed on the surface of the oxidation film, the conductive particles penetrate through the aluminum row base material along the thickness direction of the oxidation film, and a conductive corrosion-resistant coating is further coated on the outer side of the oxidation film; has the advantages of small contact resistance and good conductivity.
Description
Technical Field
The invention belongs to the technical field of new energy batteries, and particularly relates to an aluminum bar for a new energy battery and a forming method thereof.
Background
With the exhaustion of petroleum energy and the increasing demand of people for environmental protection, electric vehicles or hybrid vehicles will play an important role in the battle of land vehicles. The battery is used as a core power source of an electric automobile, namely a power battery, and the indexes of safety, reliability and the like of the battery are particularly important. Since the vehicle-mounted power battery is formed by connecting tens, hundreds or even thousands of batteries in series and parallel, the connection terminal connecting the batteries is an aluminum bar because the resistance of aluminum or aluminum alloy is particularly low. However, if the aluminium or aluminium alloy strip is exposed to air, an aluminium oxide layer, typically 2-4nm thick, will form quickly. On the one hand, such an aluminum oxide layer is desirable to protect the aluminum or aluminum alloy from further corrosion. On the other hand, the aluminium oxide layer has significantly poor thermal and electrical conductivity properties, leading to heat or electricity transfer problems, especially at the contact points between two different components. In order to solve these problems in electrical contact, attempts have been made to provide a highly conductive coating for a strip or foil of an aluminum alloy, however, the effect is not very desirable, and in order to solve the above problems, the present application proposes an aluminum busbar for a new energy battery and a method of forming the same.
Disclosure of Invention
The invention aims to provide an aluminum bar for a new energy battery and a forming method thereof, which aim to solve the problem that the aluminum bar is remained in the air, the surface of the aluminum bar is oxidized by the air to generate an oxide layer, and the oxide layer can influence the heat conduction and the electric conduction of the aluminum bar, so that the working stability of the new energy battery is influenced.
The invention provides the following technical scheme:
an aluminum bar for a new energy battery comprises an aluminum bar base material, wherein a plurality of bulges are uniformly arranged on the aluminum bar base material, the bulges divide the aluminum bar base material into a plurality of sub-bars which are clamped with battery terminals, mounting holes penetrating through the sub-bars are symmetrically arranged on two sides of each sub-bar, a square groove used for clamping with the battery terminals is arranged in the middle of each sub-bar, and a through hole is arranged in the middle of each square groove; the surface of the aluminum row base material is in contact with air to generate a layer of oxidation film, conductive particles are distributed on the surface of the oxidation film, the conductive particles penetrate through the aluminum row base material in the thickness direction of the oxidation film, and a conductive corrosion-resistant coating is further coated on the outer side of the oxidation film.
Preferably, the depth of the square groove is 1-2mm, and the thickness of the aluminum row base material is 3-4 mm.
Preferably, the conductive particles penetrate the conductive corrosion-resistant coating to the outside.
Preferably, the graphite coating is further coated on the outer side of the conductive corrosion-resistant coating.
Preferably, the conductive particles are highly conductive nanotubes, carbon nanotubes or carbon fibers.
A forming method of an aluminum bar for a new energy battery comprises the following steps: s1, removing an oxide layer on the surface of the aluminum ingot through turning; s2, heating the processed aluminum ingot to 700 ℃ to obtain molten aluminum liquid; s3, introducing the aluminum liquid into a product mold, and extruding to form to prepare an aluminum row substrate; s4, when the aluminum row base material is manufactured, the surface of the aluminum row base material is contacted with air to generate a layer of oxidation film; s5, coating lubricating oil or lubricating grease on the surface of the oxide film to serve as an adhesive, and spraying conductive particles on the adhesive; s6, embedding the conductive particles in the oxide film by hot rolling, cold rolling or temper rolling; s7, coating a conductive corrosion-resistant coating on the oxide film; s8, punching the aluminum row base material through a punching machine to form a mounting hole; s9, punching the aluminum row base material through a punching machine to form a square groove; s10, forming a through hole by punching the square groove.
The invention has the beneficial effects that:
according to the aluminum bar for the new energy battery and the forming method thereof, the square groove is clamped with the battery terminal, and during assembly, the aluminum bar can be positioned only by clamping the square groove with the battery terminal, so that the mounting stability of the aluminum bar is ensured; meanwhile, the conductive particles are embedded into the oxide film on the surface, the conductive particles are attached in a state of penetrating through the thickness direction of the oxide film, and the surface of the aluminum bar base material is covered by the conductive corrosion-resistant coating with conductivity and corrosion resistance, so that the resistance of the aluminum bar is reduced, and the conductivity of the aluminum bar is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic view of the present invention in its formed form;
labeled as:
1. the aluminum-plated copper-clad plate comprises an aluminum bar base material, 11 protrusions, 12 mounting holes, 13 square grooves, 14 through holes, 2 oxide films, 3 conductive particles and 4 conductive corrosion coatings.
Detailed Description
Example 1
As shown in fig. 1, the aluminum bar for the new energy battery comprises an aluminum bar base material 1, wherein a plurality of protrusions 11 are uniformly arranged on the aluminum bar base material 1, the aluminum bar base material 1 is uniformly divided into a plurality of sub-bars clamped with battery terminals by the protrusions 11, mounting holes 12 penetrating through the sub-bars are symmetrically arranged on two sides of each sub-bar, a square groove 13 used for clamping with the battery terminals is arranged in the middle of each sub-bar, and a through hole 14 is arranged in the middle of each square groove 13; the depth of the square groove is 1-2mm, and the thickness of the aluminum row base material is 3-4 mm.
As shown in fig. 2, the surface of the aluminum row substrate 1 contacts with air to generate a layer of oxide film 2, conductive particles 3 are distributed on the surface of the oxide film 2, the conductive particles 3 penetrate through the aluminum row substrate 1 in the thickness direction of the oxide film 2, a conductive corrosion-resistant coating 4 is further coated on the outer side of the oxide film 2, and according to the use environment, if the thickness of the conductive corrosion-resistant coating 4 is smaller, the conductive particles 3 penetrate through the conductive corrosion-resistant coating 4 to the outer side; the conductive particles 3 are highly conductive nanotubes, carbon nanotubes or carbon fibers.
Example 2
As shown in fig. 1, the aluminum bar for the new energy battery comprises an aluminum bar base material 1, wherein a plurality of protrusions 11 are uniformly arranged on the aluminum bar base material 1, the aluminum bar base material 1 is uniformly divided into a plurality of sub-bars clamped with battery terminals by the protrusions 11, mounting holes 12 penetrating through the sub-bars are symmetrically arranged on two sides of each sub-bar, a square groove 13 used for clamping with the battery terminals is arranged in the middle of each sub-bar, and a through hole 14 is arranged in the middle of each square groove 13; the depth of the square groove is 1-2mm, and the thickness of the aluminum row base material is 3-4 mm.
The surface of an aluminum row substrate 1 is contacted with air to generate a layer of oxidation film 2, conductive particles 3 are distributed on the surface of the oxidation film 2, the conductive particles 3 penetrate through the oxidation film 2 to the aluminum row substrate 1 along the thickness direction, and a conductive corrosion-resistant coating 4 is covered on the outer side of the oxidation film 2; the conductive particles 3 are highly conductive nanotubes, carbon nanotubes or carbon fibers; the graphite coating is also covered on the outer side of the conductive corrosion-resistant coating.
The molding method of two specific embodiments comprises the following steps: as shown in figure 3 of the drawings,
s1, removing an oxide layer on the surface of the aluminum ingot through turning;
s2, heating the processed aluminum ingot to 700 ℃ to obtain molten aluminum liquid;
s3, introducing the aluminum liquid into a product mold, and extruding to form to prepare an aluminum row substrate;
s4, when the aluminum row base material is manufactured, the surface of the aluminum row base material is contacted with air to generate a layer of oxidation film;
s5, coating lubricating oil or lubricating grease on the surface of the oxide film to serve as an adhesive, and spraying conductive particles on the adhesive;
s6, embedding the conductive particles in the oxide film by hot rolling, cold rolling or temper rolling;
s7, coating a conductive corrosion-resistant coating on the oxide film;
s8, punching the aluminum row base material through a punching machine to form a mounting hole;
s9, punching the aluminum row base material through a punching machine to form a square groove;
s10, forming a through hole by punching the square groove.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The aluminum busbar for the new energy battery is characterized by comprising an aluminum busbar substrate, wherein a plurality of bulges are uniformly arranged on the aluminum busbar substrate, the aluminum busbar substrate is uniformly divided into a plurality of sub-busbars clamped with battery terminals by the bulges, mounting holes penetrating through the sub-busbars are symmetrically formed in two sides of each sub-busbar, square grooves used for clamping with the battery terminals are formed in the middle of the sub-busbars, and through holes are formed in the middle of the square grooves; the surface of the aluminum row base material is in contact with air to generate a layer of oxidation film, conductive particles are distributed on the surface of the oxidation film, the conductive particles penetrate through the aluminum row base material in the thickness direction of the oxidation film, and a conductive corrosion-resistant coating is further coated on the outer side of the oxidation film.
2. The aluminum busbar for the new energy battery as claimed in claim 1, wherein the depth of the square groove is 1-2mm, and the thickness of the aluminum busbar substrate is 3-4 mm.
3. The aluminum busbar for new energy batteries according to claim 1, wherein the conductive particles penetrate the conductive corrosion-resistant coating to the outside.
4. The aluminum busbar for the new energy battery as recited in claim 1, wherein the conductive corrosion-resistant coating is further coated with a graphite coating.
5. The aluminum busbar for the new energy battery as claimed in claim 1, wherein the conductive particles are highly conductive nanotubes, carbon nanotubes or carbon fibers.
6. A forming method of an aluminum bar for a new energy battery is characterized by comprising the following steps:
s1, removing an oxide layer on the surface of the aluminum ingot through turning;
s2, heating the processed aluminum ingot to 700 ℃ to obtain molten aluminum liquid;
s3, introducing the aluminum liquid into a product mold, and extruding to form to prepare an aluminum row substrate;
s4, when the aluminum row base material is manufactured, the surface of the aluminum row base material is contacted with air to generate a layer of oxidation film;
s5, coating lubricating oil or lubricating grease on the surface of the oxide film to serve as an adhesive, and spraying conductive particles on the adhesive;
s6, embedding the conductive particles in the oxide film by hot rolling, cold rolling or temper rolling;
s7, coating a conductive corrosion-resistant coating on the oxide film;
s8, punching the aluminum row base material through a punching machine to form a mounting hole;
s9, punching the aluminum row base material through a punching machine to form a square groove;
s10, forming a through hole by punching the square groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011546678.1A CN112635920A (en) | 2020-12-23 | 2020-12-23 | Aluminum bar for new energy battery and forming method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011546678.1A CN112635920A (en) | 2020-12-23 | 2020-12-23 | Aluminum bar for new energy battery and forming method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112635920A true CN112635920A (en) | 2021-04-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011546678.1A Pending CN112635920A (en) | 2020-12-23 | 2020-12-23 | Aluminum bar for new energy battery and forming method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112635920A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130309513A1 (en) * | 2011-01-28 | 2013-11-21 | Hydro Aluminium Rolled Products Gmbh | Thermally and electrically highly conductive aluminium strip |
| CN109301146A (en) * | 2018-10-26 | 2019-02-01 | 蚌埠南实科技有限公司 | A kind of aluminium row and its forming method for new energy battery |
| CN209418628U (en) * | 2019-02-14 | 2019-09-20 | 苏州宇量电池有限公司 | A kind of battery modules tab with local welding structure |
| CN210489837U (en) * | 2019-10-17 | 2020-05-08 | 江阴华瑞电工科技股份有限公司 | Copper-aluminum composite connecting piece for new energy power generation and energy storage system |
| CN111684109A (en) * | 2017-10-24 | 2020-09-18 | 臼井国际产业株式会社 | Metal material and method for producing same |
-
2020
- 2020-12-23 CN CN202011546678.1A patent/CN112635920A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130309513A1 (en) * | 2011-01-28 | 2013-11-21 | Hydro Aluminium Rolled Products Gmbh | Thermally and electrically highly conductive aluminium strip |
| CN111684109A (en) * | 2017-10-24 | 2020-09-18 | 臼井国际产业株式会社 | Metal material and method for producing same |
| CN109301146A (en) * | 2018-10-26 | 2019-02-01 | 蚌埠南实科技有限公司 | A kind of aluminium row and its forming method for new energy battery |
| CN209418628U (en) * | 2019-02-14 | 2019-09-20 | 苏州宇量电池有限公司 | A kind of battery modules tab with local welding structure |
| CN210489837U (en) * | 2019-10-17 | 2020-05-08 | 江阴华瑞电工科技股份有限公司 | Copper-aluminum composite connecting piece for new energy power generation and energy storage system |
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Application publication date: 20210409 |
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| RJ01 | Rejection of invention patent application after publication |