CN217444511U - Square aluminum shell lithium iron phosphate battery and battery cover plate thereof - Google Patents
Square aluminum shell lithium iron phosphate battery and battery cover plate thereof Download PDFInfo
- Publication number
- CN217444511U CN217444511U CN202121430294.3U CN202121430294U CN217444511U CN 217444511 U CN217444511 U CN 217444511U CN 202121430294 U CN202121430294 U CN 202121430294U CN 217444511 U CN217444511 U CN 217444511U
- Authority
- CN
- China
- Prior art keywords
- plate
- explosion
- cathode
- battery
- anode
- 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.)
- Active
Links
Images
Classifications
-
- 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
Abstract
The utility model discloses a battery cover plate, wherein an anode rivet sequentially passes through a sealing ring, a stop frame, a base plate, an anode rotation stop sheet and an anode pressing plate to be riveted, a cathode rivet sequentially passes through the sealing ring, the stop frame, the base plate, the cathode rotation stop sheet and a cathode pressing plate to be riveted, an anode adapter sheet is welded below the anode rivet, a cathode adapter sheet is welded below the cathode rivet, the center of the base plate is provided with an explosion-proof hole, an explosion-proof sheet is arranged in the explosion-proof hole, the top of the explosion-proof hole is provided with an explosion-proof valve dustproof paste, the base plate is provided with a liquid injection hole, the liquid filling hole is internally and hermetically provided with the sealing nail and the sealing sheet, the two ends of the base plate are also provided with the cylindrical positioning grooves, the positive pole rotor plate and the negative pole rotor plate are provided with the cylindrical positioning through holes and are connected with the positioning grooves in a nested manner through the cylindrical positioning columns, and the overall safety and stability of the square aluminum shell lithium iron phosphate battery can be guaranteed. The utility model also discloses a square aluminum hull lithium iron phosphate 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 hull lithium iron phosphate 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 iron phosphate batteries, which is one of mainstream application product types, is gradually deepened, the industrialization of the lithium iron phosphate batteries is rapidly promoted, the requirements of application client sides of the lithium iron phosphate batteries are higher and higher, the research on the technology of battery cover plates serving as important components of the square aluminum shell lithium iron phosphate batteries is also more and more concerned, and the technical requirements on the design of the battery cover plates are also more and more strict. In order to improve the stability of the battery cover plate structure and the overall safety and stability of the square aluminum shell lithium iron phosphate battery, the structure of the battery cover plate must be improved.
In conclusion, how to solve the problem of stability of a battery cover plate structure in the prior art and ensure the overall safety and stability of the square aluminum shell lithium iron phosphate 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 holistic security and stability of square aluminum hull lithium iron phosphate battery. The utility model also aims at providing a square aluminum-shell lithium iron phosphate battery including above-mentioned battery apron.
In order to solve the technical problem, the utility model provides a battery cover plate, which comprises an anode rivet, a cathode rivet, an anode adapter plate, a cathode adapter plate, a sealing ring, a stopping frame, a base plate, a cathode adapter plate, an anode pressing plate and a cathode pressing plate, and is characterized in that the anode rivet sequentially passes through the sealing ring, the stopping frame, the base plate, the anode adapter plate and the cathode pressing plate for riveting, the cathode rivet sequentially passes through the sealing ring, the stopping frame, the base plate, the cathode adapter plate and the cathode pressing plate for riveting, the anode adapter plate is welded under the anode rivet, the cathode adapter plate is welded under the cathode rivet, an explosion-proof hole is arranged at the center of the base plate, the explosion-proof plate is arranged in the explosion-proof hole, an explosion-proof valve dustproof paste is arranged at the top of the explosion-proof hole, a liquid injection hole is arranged on the base plate, annotate the downthehole sealed installation of liquid and seal nail and gasket, the both ends of base plate still are provided with cylindrical positioning groove, anodal rotation stopping piece, negative pole are provided with cylindrical positioning through hole on the rotation stopping piece with positioning groove passes through cylindrical reference column nested connection.
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.
Preferably, the positioning column is made of ceramic materials.
The utility model also provides a square aluminum hull lithium iron phosphate battery, including battery aluminum hull, 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 iron phosphate battery's wholeness ability. The two ends of the base plate are also provided with cylindrical positioning grooves, the positive pole rotation stopping piece and the negative pole rotation stopping piece are provided with positioning through holes which are connected with the positioning grooves in a nested manner through positioning columns, the positive pole rotation stopping piece and the negative pole rotation stopping piece are guaranteed to be more stable and firm, and the base plate, the positive pole rotation stopping piece and the positive pole pressing plate are riveted by matching with the fact that a positive pole rivet sequentially penetrates through a sealing ring, a stopping frame, a base plate, a negative pole rotation stopping piece and a negative pole pressing plate and a negative pole rivet sequentially penetrates through a bottom-to-top riveting structure of the sealing ring, the stopping frame, the base plate, the negative pole rotation stopping piece and the negative pole pressing plate, 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 iron phosphate battery, when the inside of the battery reaches a certain air pressure, the explosion-proof piece arranged in the explosion-proof hole can be opened, and the explosion-proof valve dustproof paste 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 iron phosphate 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 positioning column is ceramic material, possesses corrosion-resistant, high temperature resistant characteristic, guarantee battery apron overall structure's that can be better stability.
The utility model also provides a square aluminum shell lithium iron phosphate battery including above-mentioned battery apron, because above-mentioned battery apron has above-mentioned technological effect, above-mentioned square aluminum shell lithium iron phosphate 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 through hole, 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, 17, a liquid injection hole, 18, a positioning column, 19, a negative rotation stop sheet and 20, a positive rotation stop sheet.
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 obtained by a person of ordinary skill in the art based on the embodiments in the present application without any inventive step are within the scope of protection of the present application.
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 positive adapter sheet (20), a negative adapter sheet (19), a sealing ring (7), a stop frame (2), a base plate (1), a positive rotation stop sheet (4), a negative rotation stop sheet (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 rotation stop sheet (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 rotation stop sheet (10) and the negative pressure plate (9) to be riveted, the positive adapter sheet (20) is welded under the positive rivet (8), the negative adapter sheet (19) is welded under the negative rivet (11), an explosion-proof hole (13) is formed in the center of the base plate (1), an explosion-proof sheet (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), a sealing nail (16) and a sealing sheet (15) are installed in the liquid injection hole (17) in a sealing mode, cylindrical positioning grooves (6) are further arranged at two ends of the base plate (1), and cylindrical positioning through holes (5) are formed in the positive rotating-stop sheet (4) and the negative rotating-stop sheet (10) and are connected with the positioning grooves (6) in a nesting mode through cylindrical positioning columns (18). 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 iron phosphate battery can be effectively improved. The two ends of the base plate (1) are further provided with cylindrical positioning grooves (6), the positive pole rotation stopping piece (4) and the negative pole rotation stopping piece (10) are provided with cylindrical positioning through holes (5) which are connected with the positioning grooves (6) in an embedded mode through cylindrical positioning columns (18), 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 can be matched with a positive pole rivet (8) to sequentially penetrate through a sealing ring (7), a stopping frame (2), the base plate (1), the positive pole rotation stopping piece (4) and a positive pole pressing plate (3) to be riveted and a negative pole rivet (11) to sequentially penetrate through the sealing ring (7), the stopping frame (2), the base plate (1), the negative pole rotation stopping piece (10) and a negative pole pressing plate (9) to be riveted, 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 iron phosphate battery, when the inside of the battery reaches a certain critical 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) so as to effectively control the limit value of the exhaust pressure of the battery, thereby ensuring the overall safety and stability of the lithium iron phosphate battery. 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 positioning column (18) is made of ceramic materials, has the characteristics of corrosion resistance and high temperature resistance, and can better guarantee the stability of the overall structure of the battery cover plate.
The utility model provides a square aluminum hull lithium iron phosphate battery's introduction please refer to the embodiment of above-mentioned battery apron, 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 (8)
1. A battery cover plate comprises an anode rivet, a cathode rivet, an anode adapter plate, a cathode adapter plate, a sealing ring, a stopping frame, a base plate, an anode rotating-stopping plate, a cathode rotating-stopping plate, an anode pressing plate and a cathode pressing plate, and is characterized in that the anode rivet sequentially penetrates the sealing ring, the stopping frame, the base plate, the anode rotating-stopping plate and the anode pressing plate for riveting, the cathode rivet sequentially penetrates the sealing ring, the stopping frame, the base plate, the cathode rotating-stopping plate and the cathode pressing plate for riveting, the anode adapter plate is welded below the anode rivet, the cathode adapter plate is welded below the cathode rivet, an explosion-proof hole is formed in the center of the base plate, an explosion-proof plate is installed in the explosion-proof hole, an explosion-proof valve dustproof paste is installed at the top of the explosion-proof hole, a liquid injection hole is formed in the base plate, and a sealing sheet and a liquid injection nail are installed in the explosion-proof hole in a sealing manner, cylindrical positioning grooves are further formed in the two ends of the base plate, and cylindrical positioning through holes are formed in the positive rotating stop piece and the negative rotating stop piece and are connected with the positioning grooves in a nested mode through cylindrical positioning columns.
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. The battery cover plate of claim 1, wherein the positioning posts are made of ceramic.
7. A square aluminum shell lithium iron phosphate 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 6.
8. The square aluminum-shell lithium iron phosphate battery according to claim 7, 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 |
|---|---|---|---|
| CN202121430294.3U CN217444511U (en) | 2021-06-26 | 2021-06-26 | Square aluminum shell lithium iron phosphate battery and battery cover plate thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121430294.3U CN217444511U (en) | 2021-06-26 | 2021-06-26 | Square aluminum shell lithium iron phosphate battery and battery cover plate thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217444511U true CN217444511U (en) | 2022-09-16 |
Family
ID=83209221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121430294.3U Active CN217444511U (en) | 2021-06-26 | 2021-06-26 | Square aluminum shell lithium iron phosphate battery and battery cover plate thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217444511U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115863863A (en) * | 2023-02-09 | 2023-03-28 | 深圳海润新能源科技有限公司 | End cover assembly, energy storage device and electric equipment |
-
2021
- 2021-06-26 CN CN202121430294.3U patent/CN217444511U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115863863A (en) * | 2023-02-09 | 2023-03-28 | 深圳海润新能源科技有限公司 | End cover assembly, energy storage device and electric equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113488731A (en) | Square aluminum shell lithium iron phosphate battery and battery cover plate thereof | |
| CN201146222Y (en) | Novel lamination type lithium ion secondary battery | |
| CN111785864A (en) | Square aluminum shell lithium battery and battery cover plate thereof | |
| CN107482156B (en) | Large single lithium ion battery | |
| CN211088318U (en) | Semimetal shell button cell | |
| CN113488730A (en) | Square aluminum shell lithium ion battery and battery cover plate thereof | |
| US20230126021A1 (en) | Battery | |
| CN217444511U (en) | Square aluminum shell lithium iron phosphate battery and battery cover plate thereof | |
| CN217134623U (en) | Button cell | |
| CN106410268A (en) | Multi-coating intelligent high-safety polymer lithium ion secondary battery | |
| CN102024995A (en) | Novel lithium ion power battery | |
| CN211182258U (en) | Novel lithium battery shell and shell cover applying same | |
| CN202549984U (en) | Cylindrical lithium battery | |
| CN209232828U (en) | Lithium ion battery with aluminum shell and its shell and its top cover | |
| CN217086730U (en) | Square aluminum shell lithium ion battery and battery cover plate thereof | |
| CN111276642A (en) | Lithium ion battery and manufacturing method thereof | |
| CN216389540U (en) | Lithium ion battery cover plate structure with anti-rotation pole | |
| CN214848804U (en) | Lithium-manganese battery | |
| CN212625819U (en) | Top seal head | |
| CN201877491U (en) | Novel high-capacity lithium ion battery | |
| CN111769219B (en) | Lithium battery cover plate and lithium battery | |
| CN208781893U (en) | A kind of flexible packing lithium ion battery | |
| CN212571161U (en) | Square aluminum shell lithium battery and battery cover plate thereof | |
| CN206293557U (en) | A kind of multicoat intelligence high safety polymer lithium ion secondary battery | |
| CN208608234U (en) | A kind of battery case of high-energy density lithium battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |