CN-224204324-U - Pin, conductor, cover plate, battery and electric equipment

Abstract

The application provides a pin, a conductor, a cover plate, a battery and electric equipment. The pin comprises a pin body and a first separation layer, at least part of the pin body is made of aluminum, the first separation layer is arranged on at least part of the surface of the pin body, and the first separation layer is used for separating the pin body and electrolyte. According to the pin, the first separation layer capable of separating the electrolyte is arranged on the surface of the aluminum pin body, so that the weight and cost of the pin can be reduced, the pin can be prevented from being radiated, and the structural stability of the pin is ensured.

Inventors

• HUANG JINHAI
• SHU KUANJIN
• YAN BO
• HE WEI

Assignees

• 惠州亿纬动力电池有限公司

Dates

Publication Date

20260505

Application Date

20250325

Claims (13)

1. 1. A pin, comprising: the pin body is made of aluminum at least partially; The first separation layer is arranged on at least part of the surface of the pin body and is used for separating the pin body from electrolyte.
2. 2. The pin of claim 1, wherein the pin body comprises a first portion adapted to be immersed in an electrolyte, the first portion having surfaces that are each covered with the first separator layer.
3. 3. The pin of claim 2, wherein the pin body further comprises a second portion connected to the first portion, the second portion being adapted to be spaced apart from the electrolyte, the area of the portion of the second portion to which the first separator is connected being S3, the area of the second portion being S4, wherein S3/S4 is greater than or equal to 0.95.
4. 4. A pin according to any one of claims 1 to 3, wherein the thickness of the first separation layer is t, wherein t is ≡2μm.
5. 5. A lead according to any one of claims 1 to 3, wherein the lead has a connecting part connected with the tab, the connecting part is made of the same material as the tab, and/or, The material of the first separation layer is the same as that of the electrode lug.
6. 6. A pin according to any one of claims 1 to 3, wherein the weight percentage of aluminium in the pin is greater than or equal to 70%.
7. 7. An electrical conductor comprising a pin according to any one of claims 1 to 6.
8. 8. The electrical conductor of claim 7, further comprising a post and a terminal, the post connecting the pin and the terminal, at least one of the post and the terminal being aluminum.
9. 9. The electrical conductor of claim 8, further comprising a second separator layer disposed at a junction of the post and the lead.
10. 10. The electrical conductor of claim 9, wherein the first separator layer and the second separator layer are the same material.
11. 11. A cover plate comprising an electrical conductor as claimed in any one of claims 7 to 10.
12. 12. A battery comprising the cover of claim 11.
13. 13. A powered device comprising the battery of claim 12.

Description

Pin, conductor, cover plate, battery and electric equipment Technical Field The application relates to the technical field of pin structures, in particular to pins, conductors, a cover plate, a battery and electric equipment. Background Batteries are widely used in the fields of energy storage systems, vehicles, consumer electronics, and the like. The battery mainly comprises a shell, a tab, a pin and other structures, and the pin is connected with the tab. In the related art battery, copper is generally used as the negative electrode lead, but the weight and cost of copper are high, which results in difficulty in reducing the weight and cost of the lead. Disclosure of utility model The embodiment of the application provides a pin, a conductor, a cover plate, a battery and electric equipment, which can improve the technical problems that the weight and the cost of the pin are difficult to reduce. In a first aspect, an embodiment of the present application provides a pin, including: the pin body is made of aluminum at least partially; The first separation layer is arranged on at least part of the surface of the pin body and is used for separating the pin body from electrolyte. In an embodiment, the pin body includes a first portion, the first portion is adapted to be soaked in an electrolyte, and the surface of the first portion is covered with the first separation layer. In an embodiment, the pin body further includes a second portion connected to the first portion, the second portion is adapted to be disposed at an interval with the electrolyte, an area of a portion of the second portion connected to the first separation layer is S3, and an area of the second portion is S4, wherein S3/S4 is greater than or equal to 0.95. In one embodiment, the thickness of the first separation layer is t, wherein t is equal to or greater than 2um. In one embodiment, the pin has a connection portion connected to the tab, the connection portion is made of the same material as the tab, and/or, The material of the first separation layer is the same as that of the electrode lug. In one embodiment, the weight percentage of aluminum in the pins is greater than or equal to 70%. In a second aspect, embodiments of the present application provide an electrical conductor, including the pins described above. In an embodiment, the electrical conductor further includes a post and a terminal, the post connects the pin and the terminal, and at least one of the post and the terminal is made of aluminum. In an embodiment, the conductor further includes a second separation layer, and the second separation layer is disposed at a connection portion between the pole and the lead. In an embodiment, the first separation layer and the second separation layer are made of the same material. In a third aspect, embodiments of the present application provide a cover plate including the electrical conductor described above. In a fourth aspect, embodiments of the present application provide a battery including the above-described cover plate. In a fifth aspect, an embodiment of the present application provides an electric device, including the battery described above. The embodiment of the application has the beneficial effects that: In the embodiment of the application, the weight and cost of the pin body can be effectively reduced by using aluminum as the pin body. Meanwhile, the first separation layer is arranged on at least part of the surface of the pin body so as to prevent the pin body from being contacted with electrolyte, so that the pin body can be prevented from being corroded, and the stability of the pin body is improved. That is, the first separation layer capable of separating electrolyte is arranged on the surface of the aluminum pin body, so that the weight and cost of the pin can be reduced, the pin can be prevented from being radiated, and the structural stability of the pin is ensured. Drawings In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Fig. 1 is a schematic view of a structure of an electrical conductor provided by an embodiment of the present application; Fig. 2 is a cross-sectional view of an electrical conductor provided by an embodiment of the present application; FIG. 3 is a schematic diagram of a pin according to an embodiment of the present application; FIG. 4 is a cross-sectional view of a pin provided by an embodiment of the present application; FIG. 5 is a schematic structural view of a cover plate according to an embodiment of the present application; FIG. 6 is one of the partial cross sectional views of the cover plate pro