CN117497868A - Preparation method of terminal integrated rechargeable battery - Google Patents
Preparation method of terminal integrated rechargeable battery Download PDFInfo
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- CN117497868A CN117497868A CN202311511061.XA CN202311511061A CN117497868A CN 117497868 A CN117497868 A CN 117497868A CN 202311511061 A CN202311511061 A CN 202311511061A CN 117497868 A CN117497868 A CN 117497868A
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- terminal
- outer shell
- battery cell
- control circuit
- integrated
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- 238000002360 preparation method Methods 0.000 title abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims abstract description 31
- 230000010354 integration Effects 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 6
- 229910052744 lithium Inorganic materials 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
-
- 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
- H01M50/547—Terminals characterised by the disposition of the terminals on the cells
- H01M50/548—Terminals characterised by the disposition of the terminals on the cells on opposite sides of the cell
-
- 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
- H01M50/552—Terminals characterised by their shape
- H01M50/559—Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
-
- 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses a preparation method of a terminal-integrated rechargeable battery, which comprises the following steps: s1, mounting a positive terminal on a control circuit assembly to form an integrated terminal; s2, the battery cell is arranged in the outer shell from the opening of the outer shell, and the negative electrode end of the battery cell is connected to the bottom of the outer shell; s3, mounting the integrated terminal to the opening end of the outer shell so that the positive end of the battery cell is connected with the control circuit component; the positive terminal is positioned at one end of the integration terminal, which is opposite to the outer shell, and is exposed outside the outer shell. Through integrating the positive terminal with the control circuit subassembly as an organic whole, when producing the equipment, put into the shell body with the electric core after, with the integration terminal by the opening impress shell body in, make the control circuit subassembly with the positive terminal contact connection of electric core can when making the integration terminal fixed, greatly simplified the production step of battery, effectively improved production efficiency.
Description
Technical Field
The invention relates to the technical field of lithium batteries, in particular to a preparation method of a terminal-integrated rechargeable battery.
Background
The rechargeable battery is a novel battery combining a lithium ion battery and a lithium battery charging control technology, can be subjected to repeated charging and discharging cycles due to the longer service life, is more economical and environment-friendly compared with a disposable dry battery, and has higher energy density, higher discharging rate and other performances than the disposable dry battery, so that the rechargeable battery is widely applied to various electronic equipment and mobile equipment.
In the prior art, the rechargeable battery is generally composed of a lithium battery and a control end cover, a control circuit board is arranged in the control end cover, the positive electrode end of the lithium battery is generally connected with the control circuit during installation, the control circuit leads out the positive electrode terminal to the outside of the control end cover, and finally the end cover is pressed and pressed in a mechanical pressing mode to remove the positive electrode end of the lithium battery, so that the steps are very complicated during manufacturing and assembly, and the production efficiency is low.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a preparation method of a terminal-integrated rechargeable battery, which comprises the following steps:
s1, mounting a positive terminal on a control circuit assembly to form an integrated terminal;
s2, the battery cell is arranged in the outer shell from the opening of the outer shell, and the negative electrode end of the battery cell is connected to the bottom of the outer shell;
s3, mounting the integrated terminal to the opening end of the outer shell so that the positive end of the battery cell is connected with the control circuit component; the positive terminal is positioned at one end of the integration terminal, which is opposite to the outer shell, and is exposed outside the outer shell.
According to an embodiment of the invention, S2 comprises the sub-steps of:
s21, after the battery cell is installed in the outer shell, the negative electrode end of the battery cell is abutted to the bottom of the outer shell;
s22, pressing out an annular groove in the outer shell to enable the outer shell to form a battery core mounting section and a terminal mounting section; the annular groove is formed by inwards sinking the outer wall of the outer shell, the battery cell is positioned in the battery cell mounting section, the positive electrode end of the battery cell is positioned in the terminal mounting section, and the peripheral wall of the positive electrode end of the battery cell is abutted against the inner wall of the annular groove;
in S3, the integration terminal is mounted on the terminal mounting section and connected to the positive terminal of the battery cell.
According to an embodiment of the present invention, S3 includes the following sub-steps:
s31, mounting the integrated terminal on the terminal mounting section;
s32, inwards bending the annular wall of the opening end of the outer shell to form a limiting ring, respectively abutting the limiting ring and the inner wall of the annular groove at two ends of the control circuit assembly, and exposing the positive terminal outside the opening end from the center of the limiting ring.
According to an embodiment of the present invention, in S1: an insulating ring is arranged on the control circuit component in a surrounding manner, and the insulating ring is arranged around the positive terminal;
in S32, the stop ring presses the insulating ring, so that the control circuit assembly abuts against the inner wall of the annular groove.
According to an embodiment of the present invention, S1 further includes: a connecting terminal is arranged at one end of the control circuit component, which is opposite to the positive terminal;
in S3, the positive terminal of the battery cell is contacted through the connection terminal, so that the control circuit component is electrically connected with the positive terminal of the battery cell.
According to an embodiment of the present invention, in S32, a mechanical pressing is used to bend the material at the opening to the inside to form the stop collar.
According to an embodiment of the invention, in S22, an annular groove is pressed out along the outer housing surface by means of mechanical rolling.
According to one embodiment of the invention, the positive terminal is soldered to the control circuit assembly.
According to one embodiment of the invention, the negative terminal of the battery cell is in contact connection with the bottom of the outer shell.
According to an embodiment of the present invention, the connection terminal is a metal ring-shaped connection terminal.
The invention has the beneficial effects that: through integrating the positive terminal with the control circuit subassembly as an organic whole, when producing the equipment, put into the shell body with the electric core after, with the integration terminal by the opening impress shell body in, make the control circuit subassembly with the positive terminal contact connection of electric core can when making the integration terminal fixed, greatly simplified the production step of battery, effectively improved production efficiency.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:
fig. 1 is a schematic diagram of a method for manufacturing a terminal-integrated rechargeable battery according to an embodiment;
FIG. 2 is a schematic diagram of an integrated terminal structure according to the first embodiment;
FIG. 3 is a schematic view of the structure of an outer casing according to the first embodiment;
fig. 4 is a flowchart of a method for manufacturing a terminal-integrated rechargeable battery according to the second embodiment.
Detailed Description
Various embodiments of the invention are disclosed in the following drawings, in which details of the practice are set forth in the following description for the purpose of clarity. However, it should be understood that these practical details are not to be taken as limiting the invention. That is, in some embodiments of the invention, these practical details are unnecessary. Moreover, for the purpose of simplifying the drawings, some conventional structures and components are shown in the drawings in a simplified schematic manner.
In addition, the descriptions of the "first," "second," and the like, herein are for descriptive purposes only and are not intended to be specifically construed as order or sequence, nor are they intended to limit the invention solely for distinguishing between components or operations described in the same technical term, but are not to be construed as indicating or implying any relative importance or order of such features. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
Embodiment one:
referring to fig. 1 to 3, fig. 1 is a schematic structural view of a method for manufacturing a terminal-integrated rechargeable battery according to an embodiment one, fig. 2 is a schematic structural view of a terminal-integrated battery according to an embodiment one, and fig. 3 is a schematic structural view of an outer case according to an embodiment one. In this embodiment, a method for manufacturing a terminal-integrated rechargeable battery includes a battery body 1 and an integrated terminal 2, where the battery body 1 includes an outer housing 11, one end of the outer housing 11 has an opening 1121, an electric core (not shown) is disposed inside the outer housing, and in a specific implementation, the electric core (not shown) may be a cylindrical lithium electric core in the prior art, two ends of the electric core respectively have a positive end and a negative end, the negative end of the electric core (not shown) is connected to the bottom end of the outer housing 11, the positive end of the electric core (not shown) is located at the opening 1121, the integrated terminal 2 includes a control circuit component 21 and a positive terminal 22, the positive terminal 22 is connected to the control circuit component 21, the control circuit component 21 is mounted at the opening 1121 and connected to the positive end of the electric core (not shown), and the positive terminal 22 is exposed outside the opening 1121. Thus, by integrating the positive terminal 22 with the control circuit component 21, when in production and assembly, after the battery cell (not shown) is put into the outer shell 11, the integrated terminal 2 is pressed into the outer shell 11 through the opening 1121, so that the control circuit component 21 is in contact connection with the positive terminal of the battery cell (not shown), the production steps of the battery are greatly simplified, and the production efficiency is effectively improved.
Further, the outer casing 11 has a battery core mounting section 111 and a terminal mounting section 112, an annular groove 113 is disposed between the battery core mounting section 111 and the terminal mounting section 112, a battery core (not shown) is disposed in the battery core mounting section 111, a positive end of the battery core is exposed in the terminal mounting section 111, the integrated terminal 2 is mounted in the terminal mounting section 112, an opening 1121 is formed at one end of the terminal mounting section 112, the annular groove 113 is formed by recessing inwards a side wall of the outer casing 11, and when the battery core (not shown) is mounted in the battery core mounting section 111, the annular groove 113 is pressed out of the side wall of the outer casing 11 by adopting a mechanical rolling manner, so that two ends of the battery core (not shown) are limited by the inner parts of the casing bottom 11 and the annular groove 113, and the mounting stability of the battery core (not shown) is effectively improved.
Specifically, the outer diameter of the battery cell (not shown) is equal to the inner diameter of the battery cell mounting section 111 and smaller than the inner diameter of the annular groove 113, so that the battery cell is effectively prevented from shaking in the outer housing 11, and the stability of the product is improved.
Further, the control circuit assembly 21 includes a circuit board assembly 211 and a connecting member 212, the positive terminal 22 is connected to the circuit board assembly 211, the connecting member 212 is connected to a surface of the circuit board assembly 211 facing away from the positive terminal 22, and when the integrated terminal 2 is mounted on the terminal mounting section 112, the connecting member 212 is in contact with the positive terminal of the battery (not shown), in this example, the connecting member 212 is a metal ring.
Further, the opening 1121 is further provided with a limiting ring 11211, the limiting ring 11211 is disposed around the inner side of the opening 1121, a terminal mounting position 1122 is formed between the limiting ring 11211 and the annular groove 113, the integrated terminal 2 is mounted on the terminal mounting position 1122, and the positive terminal 22 is exposed out of the opening 1121 from the center of the limiting ring 11211. The material at the opening 1121 of the spacing ring 11211 is bent inwards to form, specifically, after the integrated terminal 2 is mounted on the terminal mounting section 112, the material at the opening 1121 is pressed inwards by adopting a mechanical pressing manner, so as to form the spacing ring 11211, and the outer diameter of the mounting terminal 2 is equal to the inner diameter of the terminal mounting position 1122 and is larger than the inner diameters of the annular groove 113 and the spacing ring 11211, thereby effectively realizing the fixation of the integrated terminal 2, preventing the integrated terminal 2 from loosening and improving the stability of products.
Furthermore, the integrated terminal 2 further comprises an insulating ring 23, the insulating ring 23 is disposed on one surface of the control circuit assembly 21 and surrounds the positive terminal 22, when the integrated terminal 2 is mounted at the mounting position 1122, the insulating ring 23 is abutted against the limiting ring 11211, i.e. when the material at the opening 1121 is pressed and bent inwards in a mechanical pressing manner, the formed limiting ring 11211 presses the insulating ring 23 to further fasten the integrated terminal 2, at this time, the insulating ring 23 isolates the control circuit assembly 21 from the limiting ring 11211, so as to prevent the limiting ring 11211 from affecting the control circuit assembly 21, and meanwhile, the insulating ring 23 also has a sealing effect, so as to prevent external impurities of the battery from entering the battery, such as dust, etc., thereby effectively improving the stability of the product.
In this case, through integrating the positive terminal in the control circuit subassembly as an organic whole, when producing the equipment, put into the shell with the electric core after, will integrate the terminal and impress in the shell by the opening for the control circuit subassembly is connected with the positive terminal contact of electric core, and thereby inwards press bending the material of opening part and carry out spacingly to integrate the terminal, can accomplish production equipment, has removed steps such as loaded down with trivial details end cover equipment from, has greatly simplified the production step of battery, effectively improves production efficiency.
Embodiment two:
referring to fig. 4, and referring back to fig. 1 to 3, fig. 4 is a flowchart of a method for manufacturing a terminal-integrated rechargeable battery according to a second embodiment. The terminal-integrated rechargeable battery is prepared by the preparation method in this example, and in this example, the preparation method of the terminal-integrated rechargeable battery comprises the following steps:
s1, mounting a positive terminal 22 on a control circuit assembly 21 to form an integrated terminal 2;
s2, a battery cell (not shown) is arranged in the outer shell 11 from the opening 1121 of the outer shell 11, and the negative electrode end of the battery cell (not shown) is connected to the bottom in the outer shell 11;
s3, mounting the integrated terminal 2 to the opening end of the outer shell 11, so that the positive end of the battery cell (not shown) is connected with the control circuit assembly 21; the positive terminal 22 is located at an end of the integration terminal 21 facing away from the outer case 11, and is exposed outside the outer case 11.
Thus, by integrating the positive terminal 22 with the control circuit component 21, when in production and assembly, after the battery cell (not shown) is put into the outer shell 11, the integrated terminal 2 is pressed into the outer shell 11 through the opening 1121, so that the control circuit component 21 is in contact connection with the positive terminal of the battery cell (not shown), the production steps of the battery are greatly simplified, and the production efficiency is effectively improved.
In specific implementation, in S1, the positive electrode terminal 22 is welded to the control circuit assembly 21 by adopting a welding manner, so that the positive electrode terminal 22 is electrically connected with the control circuit assembly 21, and positive electrode output of the positive electrode terminal 22 is achieved, in S2, the negative electrode terminal of the battery cell is welded or in contact connection with the bottom in the outer shell 11, and preferably, the negative electrode terminal of the battery cell is in contact connection with the bottom in the outer shell 11.
Further, step S2 further comprises the sub-steps of:
s21, after the battery cell (not shown) is installed in the outer shell 11, the negative electrode end of the battery cell is abutted against the bottom of the outer shell 11, so that the negative electrode end of the battery cell is in contact connection with the bottom of the battery cell, and the bottom of the outer shell 11 is provided with a negative electrode output.
S22, after the battery cell (not shown) is installed in the outer shell 11, an annular groove 113 is pressed out of the outer wall of the outer shell 11, so that the outer shell 11 forms a battery cell mounting section 112 and a terminal mounting section 111; the annular groove 113 is formed by inwards sinking the outer wall of the outer shell 11, the battery cell is located in the battery cell mounting section 112, the positive end of the battery cell is located in the terminal mounting section 111, and the peripheral wall of the positive end of the battery cell is abutted to the inner wall 113 of the annular groove, so that the bottom in the outer shell 11 and the inner wall of the annular groove 113 limit the two ends of the battery cell respectively, and the battery cell is fixed.
In S3, the integration terminal 2 is mounted on the terminal mounting section 111 and connected to the positive terminal of the battery cell.
Specifically, in S3, the following sub-steps are further included:
s31, mounting the integrated terminal 2 to the terminal mounting section 111;
s32, the annular wall of the opening end of the outer shell 111 is bent inwards to form a limiting ring 11211, two ends of the control circuit assembly 21 are respectively abutted against the limiting ring 11211 and the inner wall of the annular groove 113, the positive terminal 22 is exposed out of the opening 1121 from the center of the limiting ring 11211, and at the moment, the limiting ring 11211 and the inner wall 113 of the annular groove respectively limit the two ends of the control circuit assembly 21, so that the fixation of the integrated terminal 2 is realized.
Further, in S1: an insulating ring 23 is provided around the control circuit assembly 21, and the insulating ring 23 is provided around the positive electrode terminal 22.
Thus, in S32, when the open end of the housing 111 is bent inwards to form the stop collar 11211, the stop collar 11211 extrudes the insulating collar 23, so that the other end of the control circuit component 21 is more stably abutted against the inner wall of the annular groove 113, so as to improve the stability of the installation of the integrated terminal 2.
Further, S1 further includes: at one end of the control circuit assembly 21 facing away from the positive terminal 22, a connecting piece 212 is disposed, and in S3, the positive terminal of the battery cell is contacted by the connecting piece 212, so that the control circuit assembly 21 is electrically connected with the positive terminal of the battery cell. In this example, the connection member 22 is a metal ring-shaped connection member, which is also soldered to the control circuit assembly 21 and electrically connected to the control circuit assembly 21.
Specifically, in S32, the material at the opening 1121 is bent inwards by mechanical pressing to form a stop collar 11211, and in S22, an annular groove 113 is formed on the surface of the outer casing 11 by mechanical rolling.
Thus, after the integrated terminal 2 is mounted on the terminal mounting section 111, the material at the opening 1121 is bent inwards by mechanical pressing, so as to fix the integrated terminal 2, in this process, the integrated terminal 2 is pressed towards the direction of the battery cell, and the connecting piece 22 is in contact connection with the positive electrode end of the battery cell, thereby completing the production and assembly of the battery.
In this case, the positive electrode terminal is integrated with the control circuit component, and after the battery cell is put into the outer shell during production and assembly, the integrated terminal is pressed into the outer shell through the opening, so that the control circuit component is in contact connection with the positive electrode terminal of the battery cell while the integrated terminal is fixed, the production steps of the battery are greatly simplified, and the production efficiency is effectively improved.
The foregoing is merely exemplary of the present invention and is not intended to limit the present invention. Various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, or the like, which is within the spirit and principles of the present invention, should be included in the scope of the claims of the present invention.
Claims (10)
1. A method for manufacturing a terminal-integrated rechargeable battery, comprising the steps of:
s1, mounting a positive terminal on a control circuit assembly to form an integrated terminal;
s2, the battery cell is arranged in the outer shell from the opening of the outer shell, and the negative electrode end of the battery cell is connected to the bottom of the outer shell;
s3, mounting the integrated terminal to the opening end of the outer shell so that the positive end of the battery cell is connected with the control circuit component; the positive terminal is positioned at one end of the integration terminal, which is opposite to the outer shell, and is exposed outside the outer shell.
2. The terminal-integrated rechargeable battery manufacturing method of claim 1, wherein said S2 comprises the sub-steps of:
s21, after the battery cell is installed in the outer shell, the negative electrode end of the battery cell is abutted to the bottom of the outer shell;
s22, pressing out an annular groove in the outer shell to enable the outer shell to form a battery core mounting section and a terminal mounting section; the annular groove is formed by inwards sinking the outer wall of the outer shell, the battery cell is positioned in the battery cell mounting section, the positive electrode end of the battery cell is positioned in the terminal mounting section, and the peripheral wall of the positive electrode end of the battery cell is abutted against the inner wall of the annular groove;
in the step S3, an integrated terminal is mounted on the terminal mounting section and is connected with the positive terminal of the battery cell.
3. The method for manufacturing a terminal-integrated rechargeable battery according to claim 2, wherein in S3, the method comprises the sub-steps of:
s31, mounting the integrated terminal on the terminal mounting section;
s32, inwards bending the annular wall of the opening end of the outer shell to form a limiting ring, respectively abutting the limiting ring and the inner wall of the annular groove at two ends of the control circuit assembly, and exposing the positive terminal outside the opening end from the center of the limiting ring.
4. The method for manufacturing a terminal-integrated rechargeable battery according to claim 3, wherein,
in the S1: an insulating ring is arranged around the control circuit component, and the insulating ring is arranged around the positive terminal;
in S32, the limiting ring presses the insulating ring, so that the control circuit assembly abuts against the inner wall of the annular groove.
5. The method for manufacturing a terminal-integrated rechargeable battery according to claim 3, wherein S1 further comprises: a connecting piece is arranged at one end of the control circuit component, which is away from the positive terminal;
in the step S3, the positive electrode end of the battery cell is contacted through the connecting piece, so that the control circuit component is electrically connected with the positive electrode end of the battery cell.
6. The method of claim 3, wherein in S32, the material at the opening is bent inward to form a stopper ring by mechanical press fit.
7. The method of manufacturing a terminal-integrated rechargeable battery according to claim 2, wherein in S22, an annular groove is pressed along the outer case surface by mechanical rolling.
8. The method of manufacturing a terminal-integrated rechargeable battery according to claim 1, wherein the positive electrode terminal is welded to the control circuit assembly.
9. The method of claim 1, wherein the negative terminal of the battery cell is in contact with the bottom of the outer housing.
10. The method of claim 5, wherein the connector is a metal ring connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311511061.XA CN117497868A (en) | 2023-11-13 | 2023-11-13 | Preparation method of terminal integrated rechargeable battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311511061.XA CN117497868A (en) | 2023-11-13 | 2023-11-13 | Preparation method of terminal integrated rechargeable battery |
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| CN117497868A true CN117497868A (en) | 2024-02-02 |
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| CN202311511061.XA Pending CN117497868A (en) | 2023-11-13 | 2023-11-13 | Preparation method of terminal integrated rechargeable battery |
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