CN218005051U - Square battery cover plate and square battery - Google Patents
Square battery cover plate and square battery Download PDFInfo
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- CN218005051U CN218005051U CN202221472794.8U CN202221472794U CN218005051U CN 218005051 U CN218005051 U CN 218005051U CN 202221472794 U CN202221472794 U CN 202221472794U CN 218005051 U CN218005051 U CN 218005051U
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Abstract
The utility model provides a square battery cover plate and a square battery, wherein the square battery cover plate comprises a top cover, a first insulating sealing part, a second insulating sealing part, a positive plate and a negative plate, and the positive plate is connected with the top cover in a sealing way through the first insulating sealing part; the negative plate is connected with the top cover in a sealing mode through the second insulating sealing piece; the top cover is provided with a first through hole and a second through hole, and the first through hole is opposite to the positive plate so as to expose the positive plate; the second through hole is opposite to the negative plate so as to expose the negative plate. The utility model discloses a square battery apron solves the electrified problem of square battery shell through set up positive plate and negative plate on the top cap.
Description
Technical Field
The utility model relates to a battery apron technical field especially relates to a square battery apron and square battery.
Background
A lithium ion battery is a secondary battery that mainly relies on lithium ions moving between a positive electrode and a negative electrode to operate, and has been widely used in various fields due to its characteristics of high voltage, high energy density, low self-discharge, light weight, and the like. In recent years, with the gradual popularization and application of lithium ion batteries in the fields of electric tools, power automobiles and the like, the development of lithium ion batteries with larger monomers and higher energy density is required, and meanwhile, higher requirements on the safety performance of the lithium ion batteries are provided in both design and application.
At present, lithium ion battery generally comprises electric core body and metal casing, and the electric core body is formed by a plurality of superimposed electric cores, is equipped with positive and negative pole ear on electric core, and the metal casing parcel is outside at electric core, and metal casing mainly includes shell main part and top cap, is equipped with positive post on the top cap, and positive pole ear is connected with positive post, and negative pole ear is connected with the casing, but the casing is electrified to take place the accident easily in the intensive service environment of circuit, usually with casing outsourcing insulated adhesive tape, but insulated adhesive tape can occupy extra space.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a square battery apron to the electrified problem of current square battery casing.
In one aspect, the utility model provides a square battery cover plate, which comprises a top cover, a first insulating sealing element, a second insulating sealing element, a positive plate and a negative plate, wherein the positive plate is connected with the top cover in a sealing way through the first insulating sealing element; the negative plate is connected with the top cover in a sealing mode through the second insulating sealing piece; the top cover is provided with a first through hole and a second through hole, and the first through hole is opposite to the positive plate so as to expose the positive plate; the second through hole is opposite to the negative plate so as to expose the negative plate.
Optionally, a first boss is arranged on the positive plate, and a second boss is arranged on the negative plate; the first insulating sealing element and the second insulating sealing element are both annular, the first boss penetrates through the first insulating sealing element and extends towards the first through hole, and a gap is formed between the outer wall of the first boss and the inner wall of the first through hole; the second boss penetrates through the second insulating sealing element and extends towards the direction of the second through hole, and a gap exists between the outer wall of the second boss and the inner wall of the second through hole.
Optionally, a projection of an inner edge of the first insulating seal on the top cover is located in the first through-hole region, and a projection of an inner edge of the second insulating seal on the top cover is located in the second through-hole region.
Optionally, the outer wall of the first boss is in sealing connection with the first insulating seal; the outer wall of the second boss is in sealing connection with the second insulating sealing element.
Optionally, when the positive electrode plate and the negative electrode plate are disposed on a side of the top cover facing the electrode core, the first lug boss is circular, oval or square, the second lug boss is circular, oval or square, and the first lug boss and the second lug boss are different in shape.
Optionally, when the positive electrode plate and the negative electrode plate are arranged on a side of the top cover away from the electrode core, the positive electrode plate is circular, elliptical or square, the negative electrode plate is circular, elliptical or square, and the shapes of the positive electrode plate and the negative electrode plate are different.
Optionally, the positive plate is an aluminum plate, and the negative plate is a copper plate or a nickel-plated copper plate.
Optionally, the first insulating sealing element and the second insulating sealing element are both sealant.
On the other hand, the utility model also provides a square battery, include above-mentioned arbitrary one square battery apron.
The utility model discloses in, through set up positive plate and negative plate on the top cap, avoid the square battery casing electrified, improve the security in the intensive service environment of circuit, the square battery of being convenient for simultaneously assembles into the battery package. First insulating seal sets up between positive plate and top cap, realizes the insulating seal between positive plate and the top cap, and the insulating seal setting of second realizes the insulating seal between negative plate and the top cap, and simple structure has improved connection efficiency.
Drawings
Fig. 1 is a schematic structural diagram of a square battery cover plate according to an embodiment of the present invention;
fig. 2 is a schematic view of another angle of a square battery cover plate according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of a square battery cover plate according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a square battery cover plate according to another embodiment of the present invention;
fig. 5 is a schematic cross-sectional view of a square battery cover plate according to an embodiment of the present invention.
The reference numbers in the drawings of the specification are as follows:
1. a top cover; 11. a first through hole; 12. a second through hole; 2. a first insulating seal; 3. a second insulating seal; 4. a positive plate; 41. a first boss; 5. a negative plate; 51. a second boss.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "front", "back", "vertical", "horizontal", "up", "down", "inner", "outer", and the like are used only with reference to the drawings, and are not intended to limit the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
As shown in fig. 1 to 5, a square battery cover plate according to an embodiment of the present invention includes a top cover 1, a first insulating sealing member 2, a second insulating sealing member 3, a positive plate 4 and a negative plate 5, wherein the positive plate 4 is hermetically connected to the top cover 1 through the first insulating sealing member 2. The negative plate 5 is hermetically connected with the top cover 1 through the second insulating seal 3. The top cover 1 is provided with a first through hole 11 and a second through hole 12, wherein the first through hole 11 is opposite to the positive plate 4 to expose the positive plate 4. The second through hole 12 is disposed opposite to the negative electrode plate 5 to expose the negative electrode plate 5.
Specifically, the top cap 1 is made of a conductive material and welded to the case of the prismatic battery. The first insulating seal 2 enables the connection of the positive plates 4 to the top cap 1 by injection molding or thermal compounding. The second insulating sealing member 3 realizes the connection of the negative plate 5 and the top cover 1 through injection molding or thermal compounding.
In this embodiment, through set up positive plate 4 and negative plate 5 on top cap 1, avoid the square battery casing electrified, improve the security in the intensive service environment of circuit, the square battery of being convenient for simultaneously assembles into the battery package. First insulating seal 2 sets up between positive plate 4 and top cap 1, realizes the insulating seal between positive plate 4 and the top cap 1, and second insulating seal 3 sets up between negative plate 5 and top cap 1, realizes the insulating seal between negative plate 5 and the top cap 1, and simple structure has improved connection efficiency.
As shown in fig. 4 and 5, in another embodiment of the present invention, the positive electrode plate 4 is provided with a first boss 41, and the negative electrode plate 5 is provided with a second boss 51. The first insulating sealing element 2 and the second insulating sealing element 3 are both ring-shaped, the first boss 41 penetrates through the first insulating sealing element 2 and extends towards the first through hole 11, and a gap exists between the outer wall of the first boss 41 and the inner wall of the first through hole 11. The second boss 51 passes through the second insulating and sealing element 3 and extends towards the second through hole 12, and a gap exists between the outer wall of the second boss 51 and the inner wall of the second through hole 12.
When positive plate 4 and negative plate 5 set up respectively in top cap 1 towards the one side of utmost point core, first boss 41 extends towards first through-hole 11 direction, is favorable to positive plate 4 and the anodal ear of utmost point core to be connected. The second projection 51 extends towards the second through hole 12, which is beneficial to the connection between the negative electrode plate 5 and the negative electrode tab of the pole core.
When positive plate 4 and negative plate 5 set up the one side that deviates from the utmost point core at top cap 1 respectively, the setting of first boss 41 and second boss 51 is favorable to positive plate 4, negative plate 5 and external the connection.
As shown in fig. 3 and 5, in some embodiments of the present invention, the projection of the inner edge of the first insulating and sealing member 2 on the top cover 1 is located in the area of the first through hole 11, and the projection of the inner edge of the second insulating and sealing member 3 on the top cover 1 is located in the area of the second through hole 12, so as to avoid the contact between the first boss 41, the second boss 51 and the top cover 1.
As shown in fig. 4 and 5, in some embodiments of the present invention, the outer wall of the first boss 41 is connected to the first insulating sealing member 2 in a sealing manner. The outer wall of the second boss 51 is sealingly connected to the second insulating seal 3.
In some embodiments of the present invention, when the positive electrode plate 4 and the negative electrode plate 5 are disposed on one side of the top cover 1 facing the pole core, the first protrusion 41 is circular, elliptical or square, the second protrusion 51 is circular, elliptical or square, and the first protrusion 41 and the second protrusion 51 have different shapes, so as to distinguish the positive electrode plate 4 from the negative electrode plate 5.
In some embodiments of the present invention, the positive electrode plate 4 and the negative electrode plate 5 are disposed on one side of the top cover 1 deviating from the electrode core, the positive electrode plate 4 is circular, elliptical or square, the negative electrode plate 5 is circular, elliptical or square, and the positive electrode plate 4 and the negative electrode plate 5 have different shapes, so as to distinguish the positive electrode plate 4 and the negative electrode plate 5.
In some embodiments of the present invention, the positive plate 4 is an aluminum plate, and the negative plate 5 is a copper plate or a copper plate plated with nickel.
In some embodiments of the present invention, the first insulating and sealing member 2 and the second insulating and sealing member 3 are both sealing glue.
On the other hand, an embodiment of the present invention further provides a square battery, which includes the square battery cover plate according to any one of the above embodiments.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: modifications of the technical solutions described in the embodiments or equivalent replacements of some technical features may still be made. Such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (9)
1. A square battery cover plate is characterized by comprising a top cover, a first insulating sealing member, a second insulating sealing member, a positive plate and a negative plate, wherein the positive plate is connected with the top cover in a sealing mode through the first insulating sealing member; the negative plate is connected with the top cover in a sealing mode through the second insulating sealing piece; the top cover is provided with a first through hole and a second through hole, and the first through hole is opposite to the positive plate so as to expose the positive plate; the second through hole is arranged opposite to the negative plate to expose the negative plate.
2. The square battery cover plate according to claim 1, wherein the positive electrode plate is provided with a first boss, and the negative electrode plate is provided with a second boss; the first insulating sealing element and the second insulating sealing element are both annular, the first boss penetrates through the first insulating sealing element and extends towards the first through hole, and a gap is formed between the outer wall of the first boss and the inner wall of the first through hole; the second boss penetrates through the second insulating sealing element and extends towards the direction of the second through hole, and a gap exists between the outer wall of the second boss and the inner wall of the second through hole.
3. The square battery lid plate according to claim 2, wherein a projection of the inner edge of the first insulating seal on the top cap is located in the first through-hole region, and a projection of the inner edge of the second insulating seal on the top cap is located in the second through-hole region.
4. The square battery cap plate according to claim 3, wherein the outer wall of the first boss is sealingly connected with the first insulating seal; the outer wall of the second boss is in sealing connection with the second insulating sealing element.
5. The square battery cover plate according to claim 2, wherein the first projection is circular, elliptical or square, the second projection is circular, elliptical or square, and the first projection and the second projection are different in shape when the positive electrode plate and the negative electrode plate are disposed on a side of the top cover facing the electrode core.
6. The square battery cover plate according to claim 2, wherein when the positive electrode plate and the negative electrode plate are disposed on a side of the top cover facing away from the electrode core, the positive electrode plate is circular, elliptical, or square, the negative electrode plate is circular, elliptical, or square, and the positive electrode plate and the negative electrode plate are different in shape.
7. The square battery cover plate according to claim 1, wherein the positive electrode plate is an aluminum plate, and the negative electrode plate is a copper plate or a nickel-plated copper plate.
8. The prismatic battery cover plate according to claim 1, wherein the first insulating sealing member and the second insulating sealing member are both sealant.
9. A prismatic battery comprising the prismatic battery cover of any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221472794.8U CN218005051U (en) | 2022-06-13 | 2022-06-13 | Square battery cover plate and square battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221472794.8U CN218005051U (en) | 2022-06-13 | 2022-06-13 | Square battery cover plate and square battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218005051U true CN218005051U (en) | 2022-12-09 |
Family
ID=84293576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221472794.8U Active CN218005051U (en) | 2022-06-13 | 2022-06-13 | Square battery cover plate and square battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218005051U (en) |
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2022
- 2022-06-13 CN CN202221472794.8U patent/CN218005051U/en active Active
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