CN217641693U - Copper-aluminum composite negative pole - Google Patents
Copper-aluminum composite negative pole Download PDFInfo
- Publication number
- CN217641693U CN217641693U CN202221567114.0U CN202221567114U CN217641693U CN 217641693 U CN217641693 U CN 217641693U CN 202221567114 U CN202221567114 U CN 202221567114U CN 217641693 U CN217641693 U CN 217641693U
- Authority
- CN
- China
- Prior art keywords
- negative pole
- post
- copper
- utmost point
- riveting face
- 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
Landscapes
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a copper aluminium composite negative pole post for lithium cell apron, include: the negative pole post, the negative pole post includes interconnect's utmost point post positive face spare and utmost point post anti-facial component, utmost point post positive face spare bottom surface is provided with first pressure riveting face, utmost point post anti-facial component top surface is provided with the second and presses riveting face, first pressure riveting face is provided with a plurality of concave-convex points, be provided with a plurality of convex-concave points corresponding with concave-convex point on the second pressure riveting face, first pressure riveting face and second press riveting face to pass through ultrasonic welding fixed connection after the interlock. In this way, the utility model provides a copper aluminium composite negative pole post falls into two parts from top to bottom with the negative pole post, and aluminium returns aluminium, and copper returns copper, and the shape is stamped the back interlock and is welded, greatly reduced cost.
Description
Technical Field
The utility model relates to a lithium battery cover plate field especially relates to a copper aluminium composite negative pole post.
Background
The lithium battery has the advantages of high voltage, long service life, high energy density, portability and the like, the application field of the lithium battery is continuously expanded, but the safety performance of the lithium battery is poorer than that of other secondary batteries, when the power lithium battery is overcharged, the materials such as the internal electrolyte can be cracked to generate gas, so that the battery shell is expanded and broken, oxygen is introduced to react with lithium ions accumulated on the surface of a negative electrode, and further the explosion is generated.
The existing negative pole column used on the cover plate of the lithium battery shell is usually made of copper-aluminum composite materials, such as the publication number CN 215119048U, the patent name is a lithium battery explosion-proof cover plate capable of being rapidly assembled, the overall material of the negative pole column in the patent is the copper-aluminum composite materials, the copper-aluminum composite materials are very expensive, and once ton, the cost of an enterprise can not be effectively reduced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a copper aluminium composite negative pole post to solve the problem that exists among the background art.
In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a copper aluminium composite negative pole post for lithium cell apron includes: the negative pole post, the negative pole post includes interconnect's utmost point post positive face spare and utmost point post anti-facial component, utmost point post positive face spare bottom surface is provided with first pressure riveting face, utmost point post anti-facial component top surface is provided with the second and presses riveting face, first pressure riveting face is provided with a plurality of concave-convex points, be provided with a plurality of concave-convex points corresponding with concave-convex point on the second pressure riveting face, first pressure riveting face and second press riveting face to interlock the back through ultrasonic welding fixed connection, set up utmost point post center positioning groove on the negative pole post.
In a preferred embodiment of the present invention, the front surface of the terminal post is made of aluminum.
In a preferred embodiment of the present invention, the pole reverse member is made of copper.
In a preferred embodiment of the present invention, the side surface of the negative electrode pillar is provided with an insulating rubber coating.
The utility model has the advantages that: the utility model provides a compound negative pole post of copper aluminium, two parts about falling into the negative pole post, aluminium returns aluminium, and copper returns copper, and the interlock rewelds after the shape is stamped, greatly reduced cost.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
fig. 1 is a schematic structural diagram of a preferred embodiment of a copper-aluminum composite negative electrode post of the present invention;
fig. 2 is a schematic structural view of the pole front piece and the pole back piece.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-2, an embodiment of the present invention includes:
a copper-aluminum composite negative pole column for a lithium battery cover plate comprises: the negative pole post 1, can set up or not set up utmost point post center positioning groove 2 on the negative pole post 1, in this embodiment, be provided with utmost point post center positioning groove 2 on the negative pole post 1, the side of negative pole post 1 sets up insulating rubber coating 3.
The negative pole post 1 comprises a post positive piece 4 and a post reverse piece 5 which are connected with each other, the material of the post positive piece 4 is aluminum, and the material of the post reverse piece 5 is copper.
4 bottom surfaces of utmost point post front side spare are provided with first pressure riveting welded surface 6, 5 top surfaces of utmost point post back side spare are provided with second pressure riveting welded surface 7, first pressure riveting welded surface 6 is provided with a plurality of concave-convex points 8, be provided with a plurality of convex-concave points 9 corresponding with concave-convex points 8 on the second pressure riveting welded surface 7, first pressure riveting welded surface 6 and second are pressed and are riveted 7 interlocks back through ultrasonic bonding fixed connection.
To sum up, the utility model provides a compound negative pole post of copper aluminium divides into two parts about the negative pole post, and aluminium returns aluminium, and copper returns copper, and the interlock rewelds after the shape is stamped, greatly reduced cost.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all of which utilize the equivalent structure or equivalent flow transformation made by the content of the specification of the present invention, or directly or indirectly applied to other related technical fields, all included in the same way in the patent protection scope of the present invention.
Claims (4)
1. A copper-aluminum composite negative pole column for a lithium battery cover plate comprises: the negative pole post, its characterized in that, the negative pole post includes interconnect's utmost point post positive surface spare and utmost point post anti-surface spare, utmost point post positive surface spare bottom surface is provided with first pressure riveting face of weld, utmost point post anti-surface spare top surface is provided with the second and presses riveting face of weld, first pressure riveting face of weld is provided with a plurality of salient points, be provided with a plurality of salient points corresponding with the salient point on the second pressure riveting face of weld, first pressure riveting face of weld and second press riveting face of weld after the interlock to pass through ultrasonic welding fixed connection, set up utmost point post center positioning groove on the negative pole post.
2. The copper-aluminum composite negative pole post according to claim 1, wherein the material of the pole front surface piece is aluminum.
3. The copper-aluminum composite negative pole post according to claim 1, wherein the material of the pole reverse piece is copper.
4. The copper-aluminum composite negative pole as claimed in claim 1, wherein the side surface of the negative pole is provided with an insulating encapsulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221567114.0U CN217641693U (en) | 2022-06-22 | 2022-06-22 | Copper-aluminum composite negative pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221567114.0U CN217641693U (en) | 2022-06-22 | 2022-06-22 | Copper-aluminum composite negative pole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217641693U true CN217641693U (en) | 2022-10-21 |
Family
ID=83629677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221567114.0U Active CN217641693U (en) | 2022-06-22 | 2022-06-22 | Copper-aluminum composite negative pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217641693U (en) |
-
2022
- 2022-06-22 CN CN202221567114.0U patent/CN217641693U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213401445U (en) | Novel full utmost point ear structure cylinder battery | |
| CN102013513A (en) | Lithium ion power battery with bidirectional current collectors | |
| CN211428262U (en) | Copper-aluminum composite pole cover plate | |
| CN220209233U (en) | Copper-aluminum composite negative electrode column suitable for PPS encapsulation and lithium battery cover plate | |
| CN217641693U (en) | Copper-aluminum composite negative pole | |
| CN219998356U (en) | Negative pole top cap subassembly and battery | |
| CN211428208U (en) | Explosion-proof cover plate of lithium battery | |
| CN210897346U (en) | Battery with a battery cell | |
| CN219267725U (en) | Battery cell and battery | |
| CN217641692U (en) | Copper-aluminum composite negative pole column of lithium battery cover plate | |
| CN203260684U (en) | Cylindrical lithium ion battery | |
| CN215644689U (en) | Horizontal laminated battery cover plate and lithium battery thereof | |
| CN201877530U (en) | Lithium ion power battery with bidirectional current collectors | |
| CN218215607U (en) | Lithium battery cover plate with full lug connecting sheet | |
| CN211428263U (en) | Eight-rivet energy storage battery cover plate | |
| CN210403782U (en) | Lithium battery cover plate with good sealing performance | |
| CN213636201U (en) | Vertical welding single-rivet plane cover plate | |
| CN211428261U (en) | Eight-rivet battery cover plate | |
| CN201340882Y (en) | High-power laminated lithium ion battery | |
| CN217426926U (en) | Cover plate convenient for laser welding of connecting sheet | |
| CN211428207U (en) | Battery cover plate easy to identify positive and negative poles | |
| CN218414966U (en) | Copper-aluminum composite pole and lithium battery cover plate | |
| JPS59173944A (en) | Secondary battery | |
| CN213878225U (en) | Explosion-proof cover plate of lithium battery | |
| CN220628028U (en) | Soft package lithium ion battery shell structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |