CN116140928A - Conductive connection structure for new energy automobile battery and preparation method - Google Patents
Conductive connection structure for new energy automobile battery and preparation method Download PDFInfo
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- CN116140928A CN116140928A CN202211573387.0A CN202211573387A CN116140928A CN 116140928 A CN116140928 A CN 116140928A CN 202211573387 A CN202211573387 A CN 202211573387A CN 116140928 A CN116140928 A CN 116140928A
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- China
- Prior art keywords
- welding
- plate
- connection structure
- conductive connection
- energy automobile
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/514—Methods for interconnecting adjacent batteries or cells
- H01M50/516—Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/521—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the material
- H01M50/522—Inorganic material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses a preparation method of a conductive connection structure for a new energy automobile battery, which comprises the following steps: the first step: pretreating an aluminum plate; and a second step of: carrying out welding treatment on the aluminum plate; and a third step of: and (5) carrying out fine processing on the aluminum plate. The invention has high overall flatness and good welding performance in the welding process. The welding plate does not need other soldering flux to weld the nickel sheet, so that the oxidation resistance of the welding plate is improved. Compared with the existing soft aluminum bars, the production efficiency is higher, and the production reject ratio is reduced.
Description
Technical Field
The invention relates to a conductive connection structure, in particular to a conductive connection structure for a new energy automobile battery and a preparation method thereof.
Background
In the prior art, in the welding process of the battery modules, the flatness of the soft rows is easily affected by the outside, so that the phenomena of cold joint, empty joint and the like occur in the welding process of the laser welding between the modules. Under the condition that the welding of the soft row is not firm, the phenomenon of soft row fracture and loosening can occur, so that the current carrying is affected, and potential safety hazards exist.
Disclosure of Invention
The invention aims to provide a preparation method of a conductive connection structure for a new energy automobile battery, which is used for effectively solving the problems of cold joint, empty joint and the like in welding.
In order to achieve the above purpose, the present invention provides the following technical solutions: the preparation method of the conductive connection structure for the new energy automobile battery comprises the following steps: the first step: pretreating an aluminum plate; and a second step of: carrying out welding treatment on the aluminum plate; and a third step of: and (5) carrying out fine processing on the aluminum plate.
Preferably, the pretreatment of the aluminum plate comprises the following steps: the first step: cutting the aluminum material by using a cutter to prepare a required aluminum plate; and a second step of: carrying out dust removal treatment on the aluminum plate by using an electrostatic dust remover; and a third step of: the surface of the aluminum plate was polished using a chemical polishing process.
Preferably, the welding treatment for the aluminum plate comprises the following steps: the first step: wrapping the nickel sheet layer on the welding plate by using an automatic nickel sheet wrapping machine; and a second step of: and welding the nickel sheet layer wrapped on the surface of the welding plate by using a polymer diffusion welding machine.
Preferably, the refining processing of the aluminum plate comprises the following steps: the first step: performing hole falling trimming on the welded plate after the nickel sheet layer is welded by using hole falling trimming equipment; and a second step of: bending and forming the aluminum plate subjected to the sixth step by using a bending die; and a third step of: obtaining the finished product.
Compared with the prior art, the invention has the following beneficial effects: the connecting piece has high overall flatness and good welding performance in the laser welding process of the battery module. The welding plate does not need other soldering flux to weld the nickel sheet, so that the oxidation resistance of the welding plate is improved. Compared with the existing soft aluminum bars, the production efficiency is higher, and the production reject ratio is reduced.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
Fig. 1 is a flow chart of the preparation of the conductive connection structure for the new energy automobile battery.
Fig. 2 is a schematic diagram of a conductive connection structure for a battery of a new energy automobile.
In fig. 2: 1. a main board; 2. welding plates; 3. a screw hole; 4. a positioning groove; 5. the holes are identified.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the present invention provides a technical solution: the preparation method of the conductive connection structure for the new energy automobile battery comprises the following steps: firstly, cutting an aluminum material by using a die to form the aluminum plate;
further, use the cutter to carry out the material processing of cutting to the aluminum product, make required aluminum plate, use electrostatic precipitator to carry out dust removal to the aluminum plate, through dust removal, can avoid the dust on surface to adhere to, lead to producing the space and influence welding quality in welding process, use chemical polishing to handle the aluminum plate surface and carry out polishing, can handle aluminum plate surface smoothness, nickel sheet layer is inseparabler with aluminum plate contact when.
Further, the welding plate is wrapped with the nickel sheet layer by using the automatic nickel sheet wrapping machine, the welding plate is not required to be wrapped with the nickel sheet layer manually, the production efficiency is improved, the safety of workers is ensured, the nickel sheet layer wrapped on the surface of the welding plate is welded by using the polymer diffusion welding machine, the overall flatness of the welding plate welded by the polymer diffusion welding machine is high, and the welding performance is good.
Further, the first step: and (3) carrying out hole falling trimming on the welded plate after welding the nickel sheet layer by using a hole falling trimming device, polishing burrs after welding, ensuring neat appearance of a workpiece and easy installation, and bending and forming the aluminum plate after the sixth step by using a bending die to obtain a finished product.
Compared with the prior art, the connecting piece has the advantages that the overall flatness is high in the laser welding process of the battery module, the welding performance is good, the output end does not need other soldering flux to weld nickel sheets, the oxidation resistance is improved, the production efficiency is higher than that of the existing soft aluminum bars, and the production reject ratio is reduced.
Of course, the foregoing merely illustrates certain embodiments of the invention and is in no way intended to limit the scope of the invention, as it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations may be made to these embodiments without departing from the principles and spirit of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (9)
1. The preparation method of the conductive connection structure for the new energy automobile battery is characterized by comprising the following steps of:
the first step: pretreating an aluminum plate;
and a second step of: carrying out welding treatment on the aluminum plate;
and a third step of: and (5) carrying out fine processing on the aluminum plate.
2. The method for preparing the conductive connection structure for the new energy automobile battery according to claim 1, wherein the pretreatment of the aluminum plate comprises the following steps:
the first step: cutting the aluminum material by using a cutter to prepare a required aluminum plate;
and a second step of: carrying out dust removal treatment on the aluminum plate by using an electrostatic dust remover;
and a third step of: the surface of the aluminum plate was polished using a chemical polishing process.
3. The method for manufacturing a conductive connection structure for a new energy automobile battery according to claim 1, wherein the welding process for the aluminum plate comprises the steps of:
the first step: wrapping the nickel sheet layer on the welding plate by using an automatic nickel sheet wrapping machine;
and a second step of: and welding the nickel sheet layer wrapped on the surface of the welding plate by using a polymer diffusion welding machine.
4. The method for manufacturing a conductive connection structure for a new energy automobile battery according to claim 1, wherein the refining processing of the aluminum plate comprises the following steps:
the first step: performing hole falling trimming on the welded plate after the nickel sheet layer is welded by using hole falling trimming equipment;
and a second step of: bending and forming the aluminum plate subjected to the sixth step by using a bending die;
and a third step of: obtaining the finished product.
5. The novel conductive connection structure for the energy automobile battery is characterized by comprising a main board and a welding plate; the main board and the welding board are pure aluminum 1060O-state aluminum board high-purity copper or aluminum; the welding plate is arranged on one side of the main plate; the welding plate is provided with a nickel sheet layer or a silver sheet layer.
6. The conductive connection structure for a battery of a new energy automobile according to claim 1, wherein the main board is provided with a positioning groove.
7. The conductive connection structure for a battery of a new energy automobile according to claim 1, wherein the main board is provided with an identification hole.
8. The conductive connection structure for a battery of a new energy automobile according to claim 1, wherein the welding plate is provided with screw holes.
9. The electrically conductive connection structure for a battery of a new energy automobile according to claim 1, wherein the thickness of the nickel plate is at least 0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211573387.0A CN116140928A (en) | 2022-12-08 | 2022-12-08 | Conductive connection structure for new energy automobile battery and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211573387.0A CN116140928A (en) | 2022-12-08 | 2022-12-08 | Conductive connection structure for new energy automobile battery and preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116140928A true CN116140928A (en) | 2023-05-23 |
Family
ID=86357340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211573387.0A Pending CN116140928A (en) | 2022-12-08 | 2022-12-08 | Conductive connection structure for new energy automobile battery and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116140928A (en) |
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2022
- 2022-12-08 CN CN202211573387.0A patent/CN116140928A/en active Pending
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