CN218887434U - Battery core cover plate, battery core, battery pack and vehicle - Google Patents
Battery core cover plate, battery core, battery pack and vehicle Download PDFInfo
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- CN218887434U CN218887434U CN202222690040.6U CN202222690040U CN218887434U CN 218887434 U CN218887434 U CN 218887434U CN 202222690040 U CN202222690040 U CN 202222690040U CN 218887434 U CN218887434 U CN 218887434U
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- cover plate
- main body
- cell
- boss
- cavity
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- 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 provides an electric core cover plate, include: a cover body having first and second oppositely disposed sides; the hollow opening penetrates through the first side face and the second side face and is arranged on the cover plate main body; the convex part is arranged on the first side face or the second side face and covers the hollowed-out opening, so that the hollowed-out opening is used as a cavity opening of the cavity. The storage space can be formed on the cover plate main body, and the storage capacity of the cover plate is improved under the condition that the basic size and the occupied space of the cover plate are not changed; and after the battery core cover plate is covered on the battery core main body, the cavity is communicated with the battery core main body, and the liquid storage space of the battery core is increased under the original battery core volume.
Description
Technical Field
The utility model relates to an electricity core technical field, concretely relates to electricity core apron, electric core, battery package and vehicle.
Background
At present, new energy automobiles show various advantages and rise up in the whole automobile industry, and power batteries serving as core power sources of the new energy automobiles have the advantages of high specific energy, long cycle life, no memory effect, safety, no pollution, quick charge and discharge and the like, are widely applied to various industries at present, and are of great importance in the manufacturing process of batteries, particularly in the manufacturing process of lithium batteries; the battery core is a component of the battery, the battery core comprises an electrochemical battery core with a positive pole and a negative pole, the electrochemical battery core is not directly used generally, and the quality of the battery core directly determines the quality of the rechargeable battery;
the content of electrolyte in the battery cell is a crucial factor for the battery cell, and the liquid retention amount in the battery cell directly determines the cycle service life of the battery cell, so that the more the electrolyte in the battery cell is, the better the electrolyte is, and the liquid retention amount space in the battery cell is the key place for increasing the electrolyte, so that the liquid retention amount space in the battery cell is the first problem of improving the storage amount of the electrolyte in the battery cell.
In the related technology, a g-C3N4 polymer carrier is added in a ceramic diaphragm, a polymer composite material is used for a negative electrode, or ceramic slurry is arranged in through holes on a positive plate and a negative plate, so that the liquid absorption rate and the liquid retention capacity of electrolyte are improved. The method does not really increase the space of the liquid retention amount, the yield of improving the liquid retention amount is limited, and the method can lead the polarization of the battery cell to be increased and the cycle performance to be sharply reduced due to the consumption of the electrolyte in the cycle process, thereby greatly shortening the service life of the battery cell;
therefore, how to provide a new solution to improve the liquid retention space inside the battery cell is an urgent technical problem to be solved.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a directly increase electric core apron, electric core, battery package and the vehicle of the storage space of electric core inside electrolyte.
Based on the above purpose, the utility model discloses a concrete technical scheme as follows:
in a first aspect, a cell cover plate and a cell are provided, including: a cover body having first and second oppositely disposed sides; the hollow opening penetrates through the first side face and the second side face and is arranged on the cover plate main body; the convex part is arranged on the first side face or the second side face and covers the hollowed-out opening, so that the hollowed-out opening is used as a cavity opening of the cavity.
In an optional embodiment, the protrusion is a boss having a boss face disposed away from the cover plate body, and a gap exists between the boss face and the cover plate body, the gap forming the cavity.
As an optional embodiment, an orthographic projection of the convex table surface on the cover plate main body is located at a central position of the hollowed-out opening.
In an optional embodiment, an orthographic projection of the convex table top on the cover plate main body is located in an enclosed area of the hollowed-out opening, and an area of the orthographic projection is smaller than an area of the enclosed area of the hollowed-out opening.
As an optional embodiment, the boss face is connected to the cover plate main body through ribs, and the ribs extend from four side edges of the boss face to the cover plate main body and are connected to the cover plate main body.
In addition, as an optional embodiment, on the basis of the above, the convex part is a trapezoidal convex part, and a side of the trapezoidal convex part, which is far away from the cover plate main body, forms the convex table surface.
In an alternative embodiment, the boss surface is provided with an explosion-proof valve and a liquid injection hole; the side face of the cover plate main body and the side face of the convex part in the same direction are provided with polar columns, and the protruding direction of the polar columns and the protruding direction of the convex part are in the same direction.
On the basis of the embodiment, two pole columns are further arranged and are respectively positioned on two sides of the boss; the protruding height of the pole is equal to that of the boss.
Based on the same inventive concept, a second aspect of the present invention discloses an electrical core, which includes an electrical core casing, wherein a containing cavity is provided inside the electrical core casing, a top of the electrical core casing is provided with an electrical core cover plate according to any one of the above schemes, and the containing cavity is communicated with the cavity.
Based on the same inventive concept, a third aspect of the present invention further discloses a battery pack, which includes the battery cell cover plate according to any one of the above first aspects or the battery cell according to the above second aspect.
Based on the same inventive concept, a fourth aspect of the present invention further discloses a vehicle, which includes the battery cover plate of any one of the above first aspects or the battery cell of the above second aspect, or the battery pack of the above third aspect.
From the above, can see out, the utility model provides a beneficial effect of electric core apron, electric core, battery package and vehicle as follows:
the battery core cover plate provided by the scheme is characterized in that the cover plate main body is provided with the hollowed-out openings penetrating through two side faces, the hollowed-out openings are covered with the convex parts, the inner sides of the convex parts are provided with cavities, the hollowed-out openings correspond to openings serving as the cavities, and the convex parts on the hollowed-out openings form the cavities communicated with the hollowed-out openings; by adopting the scheme, the cavity serving as the storage space can be formed on the cover plate main body, and the storage capacity is improved on the cover plate under the condition that the basic size and the occupied space of the cover plate are not changed; and the battery core cover plate covers the battery core main body, and the cavity is communicated with the battery core main body, so that the liquid storage space of the battery core is increased under the original battery core volume.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the related art, the drawings required to be used in the description of the embodiments or the related art will be briefly described below, 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 according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a cell cover plate according to an embodiment of the present invention;
fig. 2 is a schematic side view of a cell cover plate according to an embodiment of the present invention;
fig. 3 is a schematic top view of a cell cover plate according to an embodiment of the present invention;
fig. 4 is a schematic side view of a cover plate body according to an embodiment of the present invention;
fig. 5 is a schematic view of an overall structure of a battery cell according to an embodiment of the present invention;
description of reference numerals: 1. the cover plate comprises a cover plate main body, 101, a first side face, 102, a second side face, 2, a convex part, 20, a boss, 201, a convex table face, 3, a cavity, 4, a battery cell shell, 11, a hollow opening, 12, a pole, 22, a convex rib, 211, an explosion-proof valve, 212 and a liquid injection hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings.
It is to be noted that technical terms or scientific terms used in the embodiments of the present invention should have a general meaning as understood by one having ordinary skill in the art to which the present disclosure belongs, unless otherwise defined. The use of "first," "second," and the like in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item preceding the word comprises the element or item listed after the word and its equivalent, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "outer", "inner", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
An embodiment of the utility model provides an electricity core apron. This electricity core apron includes: a cover plate body 1, which is a planar plate-shaped structure and has a first side surface 101 and a second side surface 102 that are arranged oppositely, in this embodiment, shown as a rectangular cover plate, and the shape of the cover plate body 1 matches with that of an applicable battery cell 4; the cover plate main body 1 is provided with a through first side surface 101 and a second side surface 102, a hollow 11 is arranged on the cover plate main body 1 and penetrates through the first side surface 101 and the second side surface 102, a convex part 2 is formed on the first side surface 101 or the second side surface 102 of the cover plate main body 1 at the hollow 11 on the cover plate main body 1, a cavity 3 is arranged in the convex part 2, and the convex part 2 is convexly formed on the cover plate main body 1; in this example, the convex portion 2 is disposed on the first side surface 101, and the convex portion 2 covers the hollow 11, so that the cavity 3 inside the convex portion 2 is communicated with the hollow 11, and the hollow 11 serves as a cavity opening of the cavity 3.
The embodiment forms a convex part 2 which can communicate the cavity 3 with the outside on the cover plate main body 1, and can form the cavity 3 which can be used as a storage space on the cover plate main body 1, and under the condition that the basic size and the occupied space of the cover plate are not changed, the storage capacity of the battery cell is improved in the angle of the cover plate.
The cell cover plate provided by the embodiment of the present application will be further described below by way of an optional embodiment, and is shown in fig. 1 to fig. 4.
In the following embodiments, the first end face of the cell cover plate with the convex portion 2 is defined as an upper side, the second end face is defined as a lower side, and the lower side of the cover plate main body 1 is used for connecting the cell casing.
In some alternative embodiments, different from the above embodiments, the convex portion 2 is a boss 20, the boss 20 has a boss surface 201 disposed away from the cover plate body 1, a gap exists between the boss surface 201 and the cover plate body 1, the gap forms the cavity 3, and the cavity 3 formed by the gap corresponds to the hollowed-out portion 11.
The boss 2 and the cover plate main body 1 are integrally formed through punching; the hollow 11 is formed by partially deducting the upper part of the cover plate main body 1 to form a hollow structure, and the boss 2 is formed by extending upwards from the hollow 11. The convex portion 2 is formed as a convex portion, and the convex portion formed on the cover plate body 1 can be more stably structured.
In some optional embodiments, an orthographic projection of the boss surface 201 on the cover plate main body 1 is located at a central position of the hollow 11. The boss surface 201 of the boss 2 serves as an end surface, and the orthographic projection position of the boss surface 201 is arranged at the central position corresponding to the hollow part 11, so that a cavity formed inside the boss is more symmetrical, and the structure of the boss is more attractive.
In some optional embodiments, the difference from the above solutions is that an orthographic projection of the convex table surface 201 on the cover plate main body 1 is located in an enclosed area of the hollowed-out opening 11, and an area of the orthographic projection is smaller than an area of the enclosed area of the hollowed-out opening 11. Set up boss face 201 in the top of fretwork portion 11 in this embodiment to the regional setting of closing that is less than fretwork portion 11 with boss face 201 can make convex part 2 better for the stability of apron main part 1, and the shaping of being convenient for make, can obtain good suitability.
As further shown in fig. 3 and fig. 4, in some alternative embodiments, the boss surface 201 is connected to the cover plate main body 1 through a rib 22, and the rib 22 extends from four sides of the boss surface 201 to the cover plate main body 1 and is formed by being connected to the cover plate main body. This example is connected fretwork mouth 11 and boss face 201 through fin 22 and is formed convex cavity 3, and fin 22 is the lateral wall of cavity 3, and the boss column structure that forms can make the outer wall structure of cavity more firm.
In an alternative embodiment, the inner side surface of the hollow opening 11 extends upward to form a protruding rib 22, and the cover plate main body 1 is connected with the boss surface 201 through the protruding rib 22, so as to form a platform-shaped boss structure, where the inside of the boss is the cavity 3.
Further, the convex part 2 is a trapezoidal convex part, and one side of the trapezoidal convex part 2, which is far away from the cover plate main body, forms the boss surface 201. The cavity is designed into a trapezoidal boss structure, so that the hollow opening 11 at the bottom of the cavity 3 is communicated with the inner space of the cover plate-mounted battery cell shell in a large area, the side wall is formed by the sloping convex ribs, and the electrolyte has a buffering effect when entering the cavity.
Further as an optional embodiment, the hollow opening 11 is set to be rectangular, and four inner side surfaces of the hollow opening 11 are extended upwards to form protruding ribs, and the protruding ribs are connected to the rectangular boss surface 201 of the boss. Open to the integrated into one piece that the apron body can be convenient for to the rectangle with the fretwork mouth to most of electricity cores also are the rectangle, can obtain good suitability.
It should be noted that the trapezoidal cavity structure formed in the present embodiment is an exemplary description of the present embodiment, and is not limited to a rectangular shape with four sides, and is not limited to a trapezoidal shape with four sides, and a circular boss may also be formed as required, so that only a cavity needs to be formed to achieve the technical effect of the present embodiment.
In some optional embodiments, the boss surface 201 is provided with an explosion-proof valve 211 and a liquid injection hole 212; the side of the cover plate body 1 and the convex part 2 in the same direction is provided with a pole 12, and the protruding direction of the pole 12 and the protruding direction of the convex part 2 are in the same direction. Set up explosion-proof valve 211 on boss face 201 and can take place the inflation at electric core, shift the inside pressure that brings by electrolyte of electric core to the convex part 2 in the apron main part, damage of reduction electric core apron that can the certain degree improves life to can not influence the position overall arrangement of utmost point post 12, the position setting of utmost point post 21 can expand when holding the chamber and can not occupy unnecessary longitudinal space using this embodiment.
The cover plate for the battery cell provided by the embodiment is characterized in that the cover plate main body is provided with the hollowed-out openings penetrating through two side faces, the hollowed-out openings are covered with the convex parts, the inner sides of the convex parts are provided with cavities, the hollowed-out openings correspond to openings serving as the cavities, and the convex parts on the hollowed-out openings form the cavities communicated with the hollowed-out openings; the storage space can be formed on the cover plate main body, and the storage capacity of the cover plate is improved under the condition that the basic size and the occupied space of the cover plate are not changed; and the battery core cover plate covers the battery core main body, and the cavity is communicated with the battery core main body, so that the liquid storage space of the battery core is increased under the original battery core volume.
On the basis of the above embodiment, two pole posts 21 are further arranged and are respectively positioned at two sides of the boss; the protruding height of the pole 21 is equal to that of the boss, so that when the battery core is assembled in the battery pack, the acquisition component can be conveniently arranged on the battery core, and the battery pack can be conveniently produced and manufactured at the same height.
In some optional embodiments, based on the same inventive concept as the above-described cell cover plate, a battery cell is further disclosed, and as shown in fig. 5, the battery cell includes a battery cell casing 4, a containing cavity for storing an electrolyte is provided inside the battery cell casing, the cell cover plate according to any of the above-described embodiments is provided on the top of the battery cell casing 4, and the containing cavity inside the battery cell casing is communicated with a cavity 3 formed by the above-described cell cover plate 1, and both are used as a containing cavity for the electrolyte.
In the battery cell provided by the embodiment, the battery cell cover plate is installed, so that after the battery cell cover plate 1 is covered on the battery cell shell, the cavity is communicated with the battery cell shell, the liquid storage space of the battery cell is increased at the top under the original battery cell volume, and the cavity formed by the boss can be increased as an expanded accommodating cavity on the basis of the original battery cell accommodating cavity; the liquid injection coefficient of the electrolyte is improved, the liquid storage capacity of the battery cell is increased, and the cycle life of the battery cell is prolonged.
In some optional embodiments, based on the same inventive concept, a battery pack is further disclosed, where the battery pack includes the battery cell cover plate or the battery cell according to any of the above embodiments. The storage capacity of the battery can be improved, the battery can be a lithium battery, a lithium iron battery, a blade battery and other high-energy charging power batteries which can be used for cyclic endurance, and the same beneficial effects as the corresponding embodiments are achieved, and the description is omitted.
In some optional embodiments, a vehicle is further disclosed, where the vehicle is an electric vehicle, and the vehicle includes the battery cell cover plate, the battery cell, or the battery pack according to any of the above schemes, and has the same beneficial effects as those of the corresponding embodiments, and details are not repeated here.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also combinations between technical features in the above embodiments or in different embodiments can be made, steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.
The present embodiments are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements and the like that may be made without departing from the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (11)
1. A cell cover plate, comprising:
a cover body having first and second oppositely disposed sides;
the hollow opening penetrates through the first side face and the second side face and is arranged on the cover plate main body;
the convex part is arranged on the first side face or the second side face and covers the hollowed-out opening, so that the hollowed-out opening is used as a cavity opening of the cavity.
2. The cell cover plate of claim 1, wherein the protrusion is a boss having a boss face disposed away from the cover plate body, and a gap exists between the boss face and the cover plate body, the gap forming the cavity.
3. The cell cover plate according to claim 2, wherein an orthographic projection of the convex mesa on the cover plate main body is located at a central position of the hollowed-out opening.
4. The electrical core cover plate of claim 3, wherein an orthographic projection of the convex mesa on the cover plate main body is located in an enclosed area of the hollowed-out opening, and an area of the orthographic projection is smaller than an area of the enclosed area of the hollowed-out opening.
5. The cell cover plate of claim 2, wherein the boss surface is connected to the cover plate main body via ribs, and the ribs extend from four sides of the boss surface to the cover plate main body and are connected to the cover plate main body.
6. The cell cover plate of claim 5, wherein the convex portion is a trapezoidal convex portion, and a side of the trapezoidal convex portion away from the cover plate main body forms the convex mesa.
7. The cell cover plate according to claim 2, wherein the boss surface is provided with an explosion-proof valve and a liquid injection hole;
the side of the cover plate main body and the convex part in the same direction is provided with a pole, and the protruding direction of the pole and the protruding direction of the convex part are in the same direction.
8. The cell cover plate according to claim 7, wherein two of the poles are respectively located at two sides of the boss;
the protruding height of the pole is equal to that of the boss.
9. A battery cell, comprising a cell casing, wherein a containing cavity is formed inside the cell casing, the cell cover plate of any one of claims 1 to 8 is arranged on the top of the cell casing, and the containing cavity is communicated with the cavity.
10. A battery pack comprising a cell cover according to any of claims 1 to 8 or a cell according to claim 9.
11. A vehicle comprising a cell cover according to any of claims 1 to 8, or a cell according to claim 9, or a battery pack according to claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222690040.6U CN218887434U (en) | 2022-10-12 | 2022-10-12 | Battery core cover plate, battery core, battery pack and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222690040.6U CN218887434U (en) | 2022-10-12 | 2022-10-12 | Battery core cover plate, battery core, battery pack and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218887434U true CN218887434U (en) | 2023-04-18 |
Family
ID=85953853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222690040.6U Active CN218887434U (en) | 2022-10-12 | 2022-10-12 | Battery core cover plate, battery core, battery pack and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218887434U (en) |
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2022
- 2022-10-12 CN CN202222690040.6U patent/CN218887434U/en active Active
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