CN114843717A - Method for manufacturing lithium battery pole - Google Patents
Method for manufacturing lithium battery pole Download PDFInfo
- Publication number
- CN114843717A CN114843717A CN202210436737.2A CN202210436737A CN114843717A CN 114843717 A CN114843717 A CN 114843717A CN 202210436737 A CN202210436737 A CN 202210436737A CN 114843717 A CN114843717 A CN 114843717A
- Authority
- CN
- China
- Prior art keywords
- aluminum
- nickel
- copper
- composite strip
- lithium battery
- 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
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 37
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 35
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 21
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 52
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 32
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000002131 composite material Substances 0.000 claims abstract description 31
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 26
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 claims abstract description 25
- WPPDFTBPZNZZRP-UHFFFAOYSA-N aluminum copper Chemical compound [Al].[Cu] WPPDFTBPZNZZRP-UHFFFAOYSA-N 0.000 claims abstract description 25
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052802 copper Inorganic materials 0.000 claims abstract description 20
- 239000010949 copper Substances 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 15
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract description 11
- 238000003466 welding Methods 0.000 abstract description 7
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000011265 semifinished product Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
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
- H01M50/543—Terminals
- H01M50/564—Terminals characterised by their manufacturing process
-
- 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
-
- 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)
- Manufacturing & Machinery (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention provides a method for manufacturing a lithium battery pole, which comprises the following steps of S1: the aluminum-nickel or aluminum-copper composite strip material is processed into a cylinder by a punch; s2: stamping the aluminum surface of the cylinder; s3: the aluminum end is clamped, the nickel end or the copper end is machined, the problem that the pole of the lithium battery is manufactured in a traditional friction welding machine machining mode, the utilization rate of materials is low, and machining and manufacturing cost is high is solved, the utilization rate of the materials is improved, machining and manufacturing cost is reduced, and machining and production efficiency is improved.
Description
Technical Field
The invention relates to the technical field of lithium battery accessory manufacturing and production, in particular to a method for manufacturing a lithium battery pole.
Background
Lithium batteries, which are batteries using a nonaqueous electrolyte solution and using lithium metal or lithium alloy as a negative electrode material; because the chemical characteristics of lithium metal are very active, the requirements of processing, storage and use of the lithium metal on the environment are very high, so that the lithium battery is not applied for a long time, and the lithium battery becomes the mainstream at present along with the development of scientific technology; lithium batteries can be broadly classified into two types: lithium metal batteries and lithium ion batteries; lithium ion batteries do not contain lithium in the metallic state and are rechargeable; the fifth generation lithium metal battery of rechargeable battery comes out in 1996, the safety, specific capacity, self-discharge rate and cost performance ratio of the rechargeable battery are all superior to those of the lithium ion battery, and only a few national companies produce the lithium metal battery at present due to the high technical requirement limit of the rechargeable battery.
The utmost point post of lithium cell is used for connecting battery inner circuit and battery external circuit, be one of the important accessory in the lithium cell, the utmost point post of lithium cell all adopts friction welding's mode to process at present, see figure 1, combine together aluminium bar and the high-speed rotation of nickel bar through friction welding machine promptly, treat to cool off back machining two-step processing into the finished product shape (carry aluminium end shaping nickel end, clip nickel end shaping aluminium end in reverse), the mode of this kind of friction welding leads to the low-usage of panel, lead to the processing manufacturing cost higher.
Disclosure of Invention
The manufacturing method of the lithium battery pole disclosed by the invention solves the problems that the pole of the lithium battery is manufactured by adopting a traditional friction welding machine processing mode, the utilization rate of materials is low, and further the processing and manufacturing cost is higher, improves the utilization rate of the materials, reduces the processing and manufacturing cost and improves the processing and production efficiency.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the invention discloses a method for manufacturing a lithium battery pole, which comprises the following steps:
s1: the aluminum-nickel composite strip material or the aluminum-copper composite strip material is processed and punched into a cylinder by a punch;
s2: stamping the aluminum surface of the cylinder;
s3: the aluminum end is clamped and the nickel end or the copper end is partially machined.
Further, the aluminum in the aluminum-nickel or aluminum-copper composite strip is pure aluminum or aluminum alloy.
Further, the nickel in the aluminum-nickel composite strip is pure nickel, and the copper in the aluminum-copper composite strip is red copper.
Further, the hardness of aluminum in the aluminum-nickel or aluminum-copper composite strip is 45 HV.
Further, the thickness of aluminum in the aluminum-nickel or aluminum-copper composite strip is larger than the required thickness.
Further, the hardness of the nickel end or the copper end in the aluminum-nickel or aluminum-copper composite strip is greater than that of the aluminum end.
Further, the thickness of the nickel end or the copper end in the aluminum-nickel or aluminum-copper composite strip is equal to the required thickness.
Further, the diameter of the cylinder punched by the aluminum-nickel or aluminum-copper composite strip is the maximum diameter required by the nickel end or the copper end.
The beneficial technical effects are as follows:
1. the invention discloses a method for manufacturing a lithium battery pole, which comprises the following steps of S1: the aluminum-nickel or aluminum-copper composite strip material is processed into a cylinder by a punch; s2: stamping the aluminum surface of the cylinder; s3: the aluminum end is clamped, the nickel end or the copper end is locally machined, the problem that the pole of the lithium battery is manufactured in a traditional friction welding machine machining mode, the utilization rate of materials is low, and further the machining and manufacturing cost is high is solved, the utilization rate of the materials is improved, the machining and manufacturing cost is reduced, and the machining and production efficiency is improved;
2. the method disclosed by the invention only needs to perform stamping and one-time machining operation, so that the processing and manufacturing cost is low and the processing and manufacturing efficiency is high.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments will be briefly described below.
FIG. 1 is a schematic view of a conventional friction welding method for producing and manufacturing a pole;
FIG. 2 is a flow chart illustrating the steps of a method for manufacturing a lithium battery post according to the present invention;
fig. 3 is a schematic diagram of step S1 in the method for manufacturing a lithium battery post according to the present invention;
fig. 4 is a schematic diagram of step S2 in the method for manufacturing a lithium battery post according to the present invention;
fig. 5 is a schematic diagram of step S3 in the method for manufacturing a lithium battery post according to the present invention.
Wherein, 1-nickel rod, 2-aluminum rod, and 3-composite part.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The invention discloses a method for manufacturing a lithium battery pole, which specifically comprises the following steps of:
it should be noted that, in the processing method disclosed in the present invention, the allowable error is within the range of ± 0.05 mm.
S1: the aluminum-nickel or aluminum-copper composite strip is processed into a cylinder by a punch press, and the cylinder is shown in figure 3;
specifically, the aluminum in the aluminum-nickel or aluminum-copper composite strip is pure aluminum or aluminum alloy, the nickel in the aluminum-nickel composite strip is pure nickel (N4/N6), the copper in the aluminum-copper composite strip is red copper (T2), the hardness of the aluminum in the aluminum-nickel or aluminum-copper composite strip is 45HV, the hardness of a nickel end or a copper end is larger than that of an aluminum end, during processing, the aluminum-nickel or aluminum-copper composite strip needs to meet the requirement that the thickness of the aluminum is larger than that required by a client, the thickness of the nickel end or the copper end is equal to that required by the client, and the diameter of a cylinder formed by processing the aluminum-nickel or aluminum-copper composite strip through a punch press is the maximum diameter required by the nickel end or the copper end.
S2: punching the aluminum face of the cylinder, see fig. 4;
specifically, an aluminum surface of a cylinder is punched, so that the height of the whole part is F (4-5 mm), the height of a nickel end is D (3-4 mm), the aluminum end forms a ladder shape, the height of the ladder is L (0.1-1 mm), the diameter of a first ladder is M (4-11 mm), the diameter of a second ladder is H (4-14 mm), and the size H is larger than M and larger than E;
s3: clamping the aluminum end and partially machining the nickel end or the copper end, see fig. 5;
specifically, after processing, the diameter of the nickel end is I (1-6 mm, the size I is less than E), and the height of the superposed part of the aluminum end and the nickel end is K (0.1-1.0 mm).
The invention discloses a method for manufacturing a lithium battery pole, which is characterized in that an aluminum-nickel or aluminum-copper composite strip material is processed and punched into a cylinder by a punch press, the cylinder is subjected to punch forming to form a semi-finished product, and then the semi-finished product is machined to form a finished product, so that the utilization rate of a plate is high.
The foregoing shows and describes the general principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above examples are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims (8)
1. The manufacturing method of the lithium battery pole is characterized by comprising the following steps of:
s1: the aluminum-nickel composite strip material or the aluminum-copper composite strip material is processed and punched into a cylinder by a punch;
s2: stamping the aluminum surface of the cylinder;
s3: the aluminum end is clamped and the nickel end or the copper end is partially machined.
2. The method for manufacturing a lithium battery pole according to claim 1, wherein aluminum in the aluminum-nickel or aluminum-copper composite strip is pure aluminum or aluminum alloy.
3. The method for manufacturing a lithium battery pole according to claim 1, wherein nickel in the aluminum-nickel composite strip is pure nickel, and copper in the aluminum-copper composite strip is red copper.
4. The method for manufacturing a lithium battery post according to claim 1, wherein the hardness of aluminum in the aluminum-nickel or aluminum-copper composite strip is 45 HV.
5. The method of claim 1, wherein the aluminum of the aluminum-nickel or aluminum-copper composite strip is thicker than desired.
6. The method for manufacturing a lithium battery post according to claim 1, wherein the hardness of the nickel end or the copper end in the aluminum-nickel or aluminum-copper composite strip is greater than the hardness of the aluminum end.
7. The method of claim 1, wherein the thickness of the nickel end or the copper end of the aluminum-nickel or aluminum-copper composite strip is equal to the required thickness.
8. The method for manufacturing a lithium battery post according to claim 1, wherein the diameter of the cylinder punched by the aluminum-nickel or aluminum-copper composite strip is the maximum diameter required by the nickel end or the copper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210436737.2A CN114843717A (en) | 2022-04-24 | 2022-04-24 | Method for manufacturing lithium battery pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210436737.2A CN114843717A (en) | 2022-04-24 | 2022-04-24 | Method for manufacturing lithium battery pole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114843717A true CN114843717A (en) | 2022-08-02 |
Family
ID=82565101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210436737.2A Pending CN114843717A (en) | 2022-04-24 | 2022-04-24 | Method for manufacturing lithium battery pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114843717A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107369789A (en) * | 2017-07-10 | 2017-11-21 | 林州朗坤科技有限公司 | Lithium battery cap board component and its manufacture method |
| US20180233714A1 (en) * | 2017-02-13 | 2018-08-16 | Contemporary Amperex Technology Co., Limited | Power battery top cap structure, power battery and battery module |
| CN207753091U (en) * | 2018-01-27 | 2018-08-21 | 林州朗坤科技有限公司 | A kind of cathode of lithium battery pole |
| CN207852795U (en) * | 2018-01-07 | 2018-09-11 | 东莞市精联精密技术有限公司 | A kind of composite power battery electrode column |
| CN110120490A (en) * | 2018-02-05 | 2019-08-13 | 广东九九华立新材料股份有限公司 | A kind of processing method of lithium ion battery pole |
| CN209374550U (en) * | 2018-12-17 | 2019-09-10 | 江苏塔菲尔新能源科技股份有限公司 | A kind of cathode of lithium battery column |
| CN213989132U (en) * | 2020-12-11 | 2021-08-17 | 厦门海辰新能源科技有限公司 | Light-duty utmost point post subassembly, top cap structure and power battery |
| CN214753928U (en) * | 2020-07-28 | 2021-11-16 | 王宇俊 | Sealed battery cover plate |
-
2022
- 2022-04-24 CN CN202210436737.2A patent/CN114843717A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180233714A1 (en) * | 2017-02-13 | 2018-08-16 | Contemporary Amperex Technology Co., Limited | Power battery top cap structure, power battery and battery module |
| CN107369789A (en) * | 2017-07-10 | 2017-11-21 | 林州朗坤科技有限公司 | Lithium battery cap board component and its manufacture method |
| CN207852795U (en) * | 2018-01-07 | 2018-09-11 | 东莞市精联精密技术有限公司 | A kind of composite power battery electrode column |
| CN207753091U (en) * | 2018-01-27 | 2018-08-21 | 林州朗坤科技有限公司 | A kind of cathode of lithium battery pole |
| CN110120490A (en) * | 2018-02-05 | 2019-08-13 | 广东九九华立新材料股份有限公司 | A kind of processing method of lithium ion battery pole |
| CN209374550U (en) * | 2018-12-17 | 2019-09-10 | 江苏塔菲尔新能源科技股份有限公司 | A kind of cathode of lithium battery column |
| CN214753928U (en) * | 2020-07-28 | 2021-11-16 | 王宇俊 | Sealed battery cover plate |
| CN213989132U (en) * | 2020-12-11 | 2021-08-17 | 厦门海辰新能源科技有限公司 | Light-duty utmost point post subassembly, top cap structure and power battery |
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