CN110048072B - A preparation process of composite electrode column and composite electrode column - Google Patents
A preparation process of composite electrode column and composite electrode column Download PDFInfo
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- CN110048072B CN110048072B CN201910403461.6A CN201910403461A CN110048072B CN 110048072 B CN110048072 B CN 110048072B CN 201910403461 A CN201910403461 A CN 201910403461A CN 110048072 B CN110048072 B CN 110048072B
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- electrode column
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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
- H01M50/543—Terminals
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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)
- Connection Of Batteries Or Terminals (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
一种复合电极柱的制备工艺及复合电极柱，该制备工艺包括以下步骤：分别通过冷锻成型工艺加工出第一材质的极柱主体(2)和第二材质的片体(1)；将所述片体嵌入所述极柱主体的端部的容置腔(23)中；冲压或碾压，使得所述容置腔的侧部塑性形变而将所述片体与所述极柱主体铆合在一起，从而制得所述复合电极柱。该复合电极柱包括：第一材质的极柱主体(2)以及第二材质的片体(1)，所述极柱主体的端部成型有容置腔(23)，所述片体嵌于所述容置腔中，所述片体的底部、侧部、以及顶部的周沿均与所述极柱主体紧密贴合。本工艺生产效率高，而且制得的复合电极柱不会出现断裂问题，安全性高。
A preparation process for a composite electrode column and a composite electrode column, the preparation process comprising the following steps: processing a pole body (2) of a first material and a sheet (1) of a second material by cold forging respectively; embedding the sheet into a receiving cavity (23) at the end of the pole body; stamping or rolling so that the side of the receiving cavity is plastically deformed and the sheet is riveted together with the pole body, thereby obtaining the composite electrode column. The composite electrode column comprises: a pole body (2) of a first material and a sheet (1) of a second material, the end of the pole body being formed with a receiving cavity (23), the sheet being embedded in the receiving cavity, and the bottom, side, and top edges of the sheet being tightly fitted with the pole body. This process has high production efficiency, and the composite electrode column obtained will not break, and has high safety.
Description
Technical Field
The invention relates to an electrode column for a battery core and a preparation process thereof, in particular to a preparation process of a composite electrode column and a composite electrode column.
Background
The new energy power battery is used in a large number, and the electrode post of the battery adopts a composite structure, and a copper sheet body is usually compounded at the end part of an aluminum electrode post main body. At present, the preparation process of the composite electrode column is friction welding, namely, an aluminum electrode column main body is heated and melted under high-speed rotation and is welded on a copper sheet body. The process has the following technical defects that 1, false welding is easy to occur due to the problems of greasy dirt, uncleanness or oxidization on the surface of an object to be welded, and the false welding phenomenon is difficult to detect, so that the composite electrode column prepared by the process has hidden danger of fracture, and the safety of the whole battery core is further influenced. 2. After friction welding, it is necessary to perform machine tool reworking to correct deformation due to heat generation of the aluminum pole body in friction welding, which leads to an increase in the cost of the product.
Disclosure of Invention
The invention aims to provide a preparation process of a composite electrode column and the composite electrode column, so as to solve the defects in the prior art.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
A preparation process of a composite electrode column comprises the following steps:
Respectively processing a pole main body of a first material and a sheet body of a second material through a cold forging forming process;
Embedding the sheet body into a receiving cavity of an end of the pole body, and
And stamping or rolling to enable the side part of the accommodating cavity to be plastically deformed so as to rivet the sheet body and the pole main body together, and tightly attaching the bottom, the side part and the peripheral edge of the top of the sheet body to the pole main body, thereby manufacturing the composite electrode column.
In the above process for preparing a composite electrode column, preferably, the first material is aluminum, and the second material is red copper.
In the above process for preparing a composite electrode column, preferably, the thickness of the sheet is 0.8-1.2 mm, the diameter is 13-18 mm, and the height of the electrode column main body is 8-12 mm.
In the above process for preparing a composite electrode column, preferably, the peripheral edge of the top of the sheet body is depressed to form a lip, and the side portion of the accommodating cavity extends inwards to cover the lip.
The invention provides a composite electrode column comprising:
A pole body of a first material, an accommodating cavity formed at the end part of the pole body, and
The lamellar body of second material, the lamellar body inlay in the holding chamber, the bottom of lamellar body, lateral part, and the week edge at top all with the terminal body is closely laminated.
In the above composite electrode column, preferably, a peripheral edge of the top of the sheet body is depressed to form a lip, and a side portion of the receiving cavity is extended inward to cover the lip.
In the above composite electrode column, preferably, the electrode column body has a rod portion and a head portion, the head portion is flat, the head portion is located at one end of the rod portion, and the accommodating cavity is formed at an upper end of the head portion.
In the above composite electrode column, preferably, the thickness of the sheet is 0.8-1.2 mm, the diameter is 13-18 mm, the height of the electrode column main body is 8-12 mm, and the diameter of the head is 16-22 mm, and the thickness is 1.5-2.5 mm.
In the above composite electrode column, the first material may be aluminum, copper or other metals, and the second material may be copper, aluminum or other metals, but the first material and the second material are different. Preferably, the first material is aluminum, and the second material is red copper.
Compared with the prior art, the invention has at least the following beneficial effects:
Because the riveting is adopted for compounding, and a plurality of surfaces (comprising the edges of the bottom, the side and the top) of the sheet body are tightly attached to the pole body, the composite electrode pole can not have fracture problem, and the safety is high.
High productivity, up to 1.2 seconds/piece, and friction welding is generally about 15 seconds/piece. Meanwhile, the thermal deformation in friction welding can not occur in riveting compounding, so that the post-processing procedures are reduced, the efficiency can be effectively improved, the cost can be reduced, and particularly, the method can reach 5 seconds/hour, and the post-processing adopting the friction welding mode needs 20 seconds/hour.
Drawings
FIG. 1 is a perspective view of a first embodiment composite electrode column;
FIG. 2 is a flow chart of a process for preparing a composite electrode column according to a first embodiment;
fig. 3 is an enlarged view of a portion a in fig. 2;
FIG. 4 is a perspective view of a second embodiment composite electrode column;
FIG. 5 is a flow chart of a process for preparing a composite electrode column according to a second embodiment;
FIG. 6 is an enlarged view of portion B of FIG. 5;
Reference numerals 1, lamellar body, 11, lip, 2, pole body, 21, pole part, 22, head, 23, accommodation cavity, 24, side of accommodation cavity.
Detailed Description
The invention is further described below with reference to the drawings and examples.
Referring to fig. 1, the composite electrode column of the first embodiment includes a pole body 2 and a sheet body 1, the pole body 2 has a stem 21 and a head 22, the head 22 is in a flat plate shape, and the head 22 is located at one end of the stem 21.
Wherein, the material of the pole body 2 is aluminum, and the material of the sheet body 1 is red copper. The thickness of the sheet body 1 is 1mm, the diameter is 13.9 mm, the height of the pole body is 10 mm, and the diameter of the head 22 is 16 mm, and the thickness is 2 mm.
Referring to fig. 2, the preparation process of the composite electrode column of the first embodiment includes the following steps:
respectively processing a pole main body 2 of a first material and a sheet body 1 of a second material through a cold forging forming process;
Inserting the sheet body 1 into the receiving cavity 23 of the end of the pole body 2, and
And (3) stamping, namely plastically deforming the side part 24 of the accommodating cavity 23 to rivet the sheet body 1 and the pole body 2 together, and tightly attaching the bottom, the side part and the peripheral edge of the top of the sheet body 1 to the pole body 2, see fig. 2 and 3, so as to obtain the composite electrode column.
Further, the top peripheral edge of the sheet 1 is recessed to form a lip 11, and the side 24 of the receiving cavity 23 extends inwardly to cover the lip 11.
Referring to fig. 4, the composite electrode column of the second embodiment includes a pole body 2 and a sheet body 1, the pole body 2 has a stem 21 and a head 22, the head 22 is in a flat plate shape, and the head 22 is located at one end of the stem 21. The head 22 and the blade 1 are of circular configuration.
Wherein, the material of the pole body 2 is aluminum, and the material of the sheet body 1 is red copper. The thickness of the sheet body 1 is 1mm, the diameter is 13.9 mm, the height of the pole body is 10 mm, and the diameter of the head 22 is 16 mm, and the thickness is 2 mm.
Referring to fig. 5, the preparation process of the composite electrode column of the second embodiment includes the following steps:
respectively processing a pole main body 2 of a first material and a sheet body 1 of a second material through a cold forging forming process;
Inserting the sheet body 1 into the receiving cavity 23 of the end of the pole body 2, and
Rolling (i.e. rotary riveting) to plastically deform the side 24 of the accommodating cavity 23 to rivet the sheet body 1 and the pole body 2 together, and tightly attaching the bottom, side and top edges of the sheet body 1 to the pole body 2, see fig. 5 and 6, so as to obtain the composite electrode column.
Further, the top peripheral edge of the sheet 1 is recessed to form a lip 11, and the side 24 of the receiving cavity 23 extends inwardly to cover the lip 11.
According to the invention, the sheet body 1 and the pole body 2 are compounded by adopting a riveting process, and a plurality of surfaces (edges of the bottom, the side and the top) of the sheet body 1 are tightly attached to the pole body 2, so that the technical defects that the composite electrode column is easy to break and poor in safety existing in the process of compounding the sheet body and the pole body by adopting a friction welding process are effectively overcome. Meanwhile, compared with the friction welding composite mode commonly adopted at present, the riveting composite mode of the invention greatly reduces the time spent. In addition, in the riveting and compounding process, the pole body does not generate thermal deformation, so that shaping is not needed after compounding, the post processing procedure can be effectively reduced, and the cost is reduced.
The foregoing detailed description of the invention has been provided by way of example only to assist those skilled in the art in understanding the invention and is not to be construed as limiting the scope of the invention. Various modifications, equivalent changes, etc. which are made by those skilled in the art to the above-described embodiments under the inventive concept should be included in the scope of the present invention.
Claims (8)
1. The preparation process of the composite electrode column is characterized by comprising the following steps of:
respectively processing a pole main body (2) made of a first material and a sheet body (1) made of a second material through a cold forging forming process;
Embedding the sheet body (1) in a receiving cavity (23) of the end of the pole body (2), and
And stamping or rolling to enable the side part of the accommodating cavity (23) to be plastically deformed so as to rivet the sheet body (1) and the pole body (2), and tightly attaching the bottom, the side part and the peripheral edge of the top of the sheet body (1) to the pole body (2), thereby manufacturing the composite electrode column.
2. The process for preparing a composite electrode column according to claim 1, wherein the first material is aluminum and the second material is red copper.
3. The process for preparing the composite electrode column according to claim 1, wherein the thickness of the sheet body (1) is 0.8-1.2 mm, the diameter is 13-18 mm, and the height of the electrode column main body (2) is 8-12 mm.
4. The process for preparing the composite electrode column according to claim 1, wherein the peripheral edge of the top of the sheet body (1) is sunk to form a lip (11), and the side of the accommodating cavity (23) extends inwards to cover the lip (11).
5. A composite electrode column, the composite electrode column comprising:
A pole body (2) of a first material, a containing cavity (23) formed at the end of the pole body (2), and
The sheet body (1) is made of a second material, the sheet body (1) is embedded in the accommodating cavity (23), and the bottom, the side and the peripheral edge of the top of the sheet body (1) are tightly attached to the pole main body (2);
The peripheral edge of the top of the sheet body (1) is sunk to form a lip (11), and the side part of the accommodating cavity (23) is inwards extended to cover the lip (11).
6. The composite electrode column according to claim 5, wherein the electrode column main body (2) has a stem portion (21) and a head portion (22), the head portion (22) is flat plate-shaped, the head portion (22) is located at one end of the stem portion (21), and the accommodation chamber (23) is formed at an upper end of the head portion (22).
7. The composite electrode column according to claim 6, characterized in that the thickness of the sheet body (1) is 0.8-1.2 mm, the diameter is 13-18 mm, the height of the electrode column body (2) is 8-12 mm, the diameter of the head (22) is 16-22 mm, and the thickness is 1.5-2.5 mm.
8. The composite electrode column according to any one of claims 5 to 7, wherein the first material is aluminum and the second material is red copper.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910403461.6A CN110048072B (en) | 2019-05-15 | 2019-05-15 | A preparation process of composite electrode column and composite electrode column |
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| CN201910403461.6A CN110048072B (en) | 2019-05-15 | 2019-05-15 | A preparation process of composite electrode column and composite electrode column |
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| Publication Number | Publication Date |
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| CN110048072A CN110048072A (en) | 2019-07-23 |
| CN110048072B true CN110048072B (en) | 2024-12-20 |
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| CN113889717B (en) * | 2021-09-22 | 2024-07-05 | 深圳市科达利实业股份有限公司 | Processing method of copper-aluminum composite pole |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205921025U (en) * | 2016-07-20 | 2017-02-01 | 深圳塔菲尔新能源科技有限公司 | Connection structure of compound utmost point post |
| CN209730048U (en) * | 2019-05-15 | 2019-12-03 | 广东世力科技有限公司 | A kind of compound electric pole |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4257838B2 (en) * | 2003-06-09 | 2009-04-22 | パナソニック株式会社 | Sealed battery and manufacturing method thereof |
| CN205723735U (en) * | 2016-06-21 | 2016-11-23 | 宁德时代新能源科技股份有限公司 | Polar column for secondary battery attachment structure |
| CN205810941U (en) * | 2016-07-20 | 2016-12-14 | 深圳塔菲尔新能源科技有限公司 | A kind of electrokinetic cell is combined pole |
| EP3361524B1 (en) * | 2017-02-13 | 2020-07-08 | Contemporary Amperex Technology Co., Limited | Power battery top cap structure, power battery and battery module |
| CN207602679U (en) * | 2017-11-10 | 2018-07-10 | 惠州荣德隆科技有限公司 | A kind of structure improved electrode column for storage battery |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205921025U (en) * | 2016-07-20 | 2017-02-01 | 深圳塔菲尔新能源科技有限公司 | Connection structure of compound utmost point post |
| CN209730048U (en) * | 2019-05-15 | 2019-12-03 | 广东世力科技有限公司 | A kind of compound electric pole |
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Effective date of registration: 20250403 Address after: Workshop 4, Building 1, No. 788 Nanming Road, Shuige Industrial Zone, Nanmingshan Street, Liandu District, Lishui City, Zhejiang Province, 323000 Patentee after: Zhejiang Yongji New Energy Technology Co.,Ltd. Country or region after: China Address before: 247099 Plot A, Zhanqian District, Chizhou City, Anhui Province, China. The 5th, 130th, 2nd, and 130th floors of the International Trade City Phase I Professional Market Complex Building Patentee before: Chizhou Guiqian Information Technology Co.,Ltd. Country or region before: China |