CN217086730U - Square aluminum shell lithium ion battery and battery cover plate thereof - Google Patents
Square aluminum shell lithium ion battery and battery cover plate thereof Download PDFInfo
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- CN217086730U CN217086730U CN202121426911.2U CN202121426911U CN217086730U CN 217086730 U CN217086730 U CN 217086730U CN 202121426911 U CN202121426911 U CN 202121426911U CN 217086730 U CN217086730 U CN 217086730U
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Abstract
The utility model discloses a battery cover plate, anodal rivet passes the sealing washer in proper order, the locking frame, the base plate, anodal rotor plate and the riveting of positive clamp plate, the negative pole rivet passes the sealing washer in proper order, the locking frame, the base plate, the riveting of rotor plate and negative clamp plate is ended to the negative pole, open at the center of base plate has the explosion-proof hole, install explosion-proof piece in the explosion-proof hole, explosion-proof valve dustproof subsides are installed at explosion-proof hole top, it has the notes liquid hole to open on the base plate, install sealed nail and gasket annotating the downthehole sealed installation of annotating, the both ends of base plate still are provided with cylindrical positioning groove, anodal rotor plate, rotor plate lower surface is provided with reference column and positioning groove nested connection, can ensure the holistic security of square aluminum hull lithium ion battery and stability. The utility model also discloses a square aluminum-shell lithium ion battery of including above-mentioned battery apron.
Description
Technical Field
The utility model relates to a new energy battery makes technical field, in particular to battery apron. The utility model discloses still relate to a square aluminum-shell lithium ion battery including above-mentioned battery apron.
Background
Technical innovation of lithium ion batteries in the directions of energy storage, communication, power and the like is rapidly developed, the research on related technologies of square aluminum shell lithium ion batteries which are one of mainstream application product types is gradually deepened, the industrialization of the lithium ion batteries is rapidly promoted, the requirements of application client sides of the lithium ion batteries are higher and higher, the research on the technology of battery cover plates which are important components of the square aluminum shell lithium ion batteries is concerned more and more, and the technical requirements on the design of the battery cover plates are stricter. In order to improve the stability of the battery cover plate structure and the overall safety and stability of the square aluminum-shell lithium ion battery, the structure of the battery cover plate must be improved.
In conclusion, how to solve the problem of stability of the battery cover plate structure in the prior art and ensure the overall safety and stability of the square aluminum-shell lithium ion battery is a problem which needs to be solved urgently by technical personnel in the field at present.
Disclosure of Invention
In view of this, the utility model aims at providing a battery cover plate solves the stability problem of battery cover plate structure among the prior art, ensures the holistic security and the stability of square aluminum-shell lithium ion battery. Another object of the present invention is to provide a square aluminum-shell lithium ion battery including the above battery cover plate.
In order to solve the technical problem, the utility model provides a battery cover plate, which comprises an anode rivet, a cathode rivet, a sealing ring, a stop frame, a base plate, an anode rotation stop sheet, a cathode rotation stop sheet, an anode pressure plate and a cathode pressure plate, it is characterized in that the positive rivet sequentially penetrates through the sealing ring, the stop frame, the base plate, the positive stop rotating piece and the positive pressure plate to be riveted, the negative rivet penetrates through the sealing ring, the stop frame, the base plate, the negative stop rotating piece and the negative pressing plate in sequence to be riveted, an explosion-proof hole is formed in the center of the base plate, an explosion-proof sheet is arranged in the explosion-proof hole, an explosion-proof valve dustproof sticker is arranged at the top of the explosion-proof hole, a liquid injection hole is formed in the base plate, a sealing nail and a sealing sheet are hermetically arranged in the liquid injection hole, two ends of the base plate are also provided with cylindrical positioning grooves, and positioning columns are arranged on the lower surfaces of the positive pole rotation stopping sheet and the negative pole rotation stopping sheet and are connected with the positioning grooves in a nested manner.
Preferably, the positive electrode rotation stopping sheet is made of a weak conductive material.
Preferably, the negative electrode rotation stopping sheet is made of insulating plastic.
Preferably, the explosion-proof valve is pasted with regular hollow scratches in a dustproof manner.
Preferably, an insulating film is attached to the upper surface of the substrate.
The utility model also provides a square aluminum-shell lithium ion battery, including battery aluminum-shell, battery apron, electric core, the battery apron be as above-mentioned arbitrary battery apron.
Preferably, the structure of the battery cell is a laminated structure and/or a winding structure.
The utility model provides a battery cover plate, it adopts the laser welding mode when being connected with the battery aluminum hull, can effectively reduce the possibility that the internal resistance of battery cover plate changes, effectively improves lithium ion battery's wholeness ability. The two ends of the base plate are also provided with cylindrical positioning grooves, the lower surfaces of the positive pole rotation stopping piece and the negative pole rotation stopping piece are provided with positioning columns and the positioning grooves are connected in a nested mode, the positive pole rotation stopping piece and the negative pole rotation stopping piece are guaranteed to be more stable and firm, the base plate, the positive pole rotation stopping piece and the positive pole pressing plate are matched with a positive pole rivet to sequentially penetrate through the sealing ring, the stopping frame, the base plate, the positive pole rotation stopping piece and the negative pole pressing plate, the sealing ring, the stopping frame, the base plate, the negative pole rotation stopping piece and the negative pole pressing plate are sequentially penetrated through the riveted structure from bottom to top, and the structural stability of the battery cover plate when the battery cover plate is externally connected can be guaranteed. In the process of charging and discharging reaction of the lithium ion battery, when the inside of the battery is critical to a certain air pressure, the explosion-proof piece arranged in the explosion-proof hole can be opened, and the explosion-proof valve dustproof sticker with regular hollowed scratches is arranged at the top of the explosion-proof hole, so that the limit value of the exhaust pressure of the battery can be effectively controlled, and the overall safety and stability of the lithium ion battery are guaranteed. Meanwhile, the design that the positive electrode rotation stopping sheet is made of a weak conductive material and the negative electrode rotation stopping sheet is made of an insulating plastic material can enable the positive electrode to be communicated with the battery aluminum shell without changing the structural shape of the original battery cover plate, so that the battery aluminum shell is provided with positive potential, and the battery aluminum shell is not easy to oxidize and corrode.
The utility model discloses still provide a square aluminum hull lithium ion battery including above-mentioned battery apron, because above-mentioned battery apron has above-mentioned technological effect, above-mentioned square aluminum hull lithium ion battery also should have same technological effect, no longer introduces in detail here.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only a part of the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of a battery cover plate structure disclosed in the embodiment of the present application.
In the figure, 1, a base plate, 2, a stop frame, 3, a positive pressure plate, 4, a positive rotation stop sheet, 5, a positioning column, 6, a positioning groove, 7, a sealing ring, 8, a positive rivet, 9, a negative pressure plate, 10, a negative rotation stop sheet, 11, a negative rivet, 12, an explosion-proof valve dustproof paste, 13, an explosion-proof hole, 14, an explosion-proof sheet, 15, a sealing sheet, 16, a sealing nail and 17, a liquid injection hole are arranged.
Detailed Description
For further understanding of the technical content, features and functions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present disclosure.
Referring to fig. 1, fig. 1 is a schematic diagram of a battery cover plate structure disclosed in the embodiment of the present application.
As shown in figure 1, the battery cover plate comprises a positive rivet (8), a negative rivet (11), a sealing ring (7), a stop frame (2), a base plate (1), a positive stop rotor (4), a negative stop rotor (10), a positive pressure plate (3) and a negative pressure plate (9), wherein the positive rivet (8) sequentially penetrates through the sealing ring (7), the stop frame (2), the base plate (1), the positive stop rotor (4) and the positive pressure plate (3) to be riveted, the negative rivet (11) sequentially penetrates through the sealing ring (7), the stop frame (2), the base plate (1), the negative stop rotor (10) and the negative pressure plate (9) to be riveted, an explosion-proof hole (13) is formed in the center of the base plate (1), an explosion-proof piece (14) is installed in the explosion-proof hole (13), an explosion-proof valve dustproof sticker (12) is installed at the top of the explosion-proof hole (13), a liquid injection hole (17) is formed in the base plate (1), the sealing nail (16) and the sealing sheet (15) are hermetically arranged in the liquid injection hole (17), the two ends of the base plate (1) are also provided with cylindrical positioning grooves (6), and the lower surfaces of the positive pole rotation stopping sheet (4) and the negative pole rotation stopping sheet (10) are provided with positioning columns (5) which are connected with the positioning grooves (6) in a nested manner. The explosion-proof valve dustproof paste (12) is provided with regular hollow scratches. An insulating film is attached to the upper surface of the substrate (1).
The battery cover plate adopts a laser welding mode when being connected with the battery aluminum shell, so that the possibility of the change of the internal resistance of the battery cover plate can be effectively reduced, and the overall performance of the lithium ion battery can be effectively improved. The two ends of the base plate (1) are further provided with cylindrical positioning grooves (6), the lower surfaces of the positive pole rotation stopping piece (4) and the negative pole rotation stopping piece (10) are provided with positioning columns (5) which are connected with the positioning grooves (6) in an embedded mode, the positive pole rotation stopping piece (4) and the negative pole rotation stopping piece (10) are guaranteed to be more stable and firm, and the base plate is matched with a structure that a positive pole rivet (8) penetrates through a sealing ring (7), a stop frame (2), the base plate (1), a negative pole rotation stopping piece (10) and a negative pole pressing plate (9) in a riveted mode and penetrates through the sealing ring (7), the stop frame (2), the base plate (1), the negative pole rotation stopping piece (10) and the negative pole pressing plate (9) in a riveted mode from bottom to top. In the process of charge and discharge reaction of the lithium ion battery, when the inside of the battery is critical to a certain air pressure, the explosion-proof sheet (14) arranged in the explosion-proof hole (13) can be opened, and the explosion-proof valve dustproof sticker (12) with regular hollow scratches is arranged at the top of the explosion-proof hole (13) to effectively control the limit value of the exhaust pressure of the battery, so that the overall safety and stability of the lithium ion battery are guaranteed. Meanwhile, the design that the positive electrode rotation stopping sheet (4) is made of a weak conductive material and the negative electrode rotation stopping sheet (10) is made of an insulating plastic material can enable the positive electrode to be communicated with the battery aluminum shell while the structure and the appearance of the original battery cover plate structure are not changed, so that the battery aluminum shell is charged with positive potential, and the battery aluminum shell is not easy to oxidize and corrode.
The utility model provides a square aluminum-shell lithium ion battery's introduction please refer to the embodiment of above-mentioned battery cover plate, the utility model discloses no longer describe here.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A battery cover plate comprises an anode rivet, a cathode rivet, a sealing ring, a stop frame, a base plate, an anode rotation stop sheet, a cathode rotation stop sheet, an anode pressing plate and a cathode pressing plate, it is characterized in that the positive rivet sequentially penetrates through the sealing ring, the stop frame, the base plate, the positive stop rotating piece and the positive pressure plate to be riveted, the negative rivet penetrates through the sealing ring, the stop frame, the base plate, the negative stop rotating piece and the negative pressing plate in sequence to be riveted, an explosion-proof hole is formed in the center of the base plate, an explosion-proof sheet is arranged in the explosion-proof hole, an explosion-proof valve dustproof sticker is arranged at the top of the explosion-proof hole, a liquid injection hole is formed in the base plate, a sealing nail and a sealing sheet are hermetically arranged in the liquid injection hole, two ends of the base plate are also provided with cylindrical positioning grooves, and positioning columns are arranged on the lower surfaces of the positive pole rotation stopping sheet and the negative pole rotation stopping sheet and are connected with the positioning grooves in a nested manner.
2. The battery cover plate of claim 1, wherein the positive rotation stopper is made of a weakly conductive material.
3. The battery cover plate according to claim 1, wherein the negative rotation stopper is made of an insulating plastic material.
4. The battery cover plate according to claim 1, wherein the explosion-proof valve is pasted with regular hollowed-out scratches.
5. The battery cover plate according to claim 1, wherein an insulating film is attached to the upper surface of the base plate.
6. A square aluminum shell lithium ion battery, which comprises a battery aluminum shell, a battery cover plate and a battery core, wherein the battery cover plate is the battery cover plate as claimed in any one of claims 1 to 5.
7. The square aluminum-shell lithium ion battery of claim 6, wherein the structure of the cell is a laminated structure and/or a wound structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121426911.2U CN217086730U (en) | 2021-06-25 | 2021-06-25 | Square aluminum shell lithium ion battery and battery cover plate thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121426911.2U CN217086730U (en) | 2021-06-25 | 2021-06-25 | Square aluminum shell lithium ion battery and battery cover plate thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217086730U true CN217086730U (en) | 2022-07-29 |
Family
ID=82497290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121426911.2U Active CN217086730U (en) | 2021-06-25 | 2021-06-25 | Square aluminum shell lithium ion battery and battery cover plate thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217086730U (en) |
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2021
- 2021-06-25 CN CN202121426911.2U patent/CN217086730U/en active Active
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