CN220914391U - Battery cover plate substrate, battery cover plate and battery - Google Patents
Battery cover plate substrate, battery cover plate and battery Download PDFInfo
- Publication number
- CN220914391U CN220914391U CN202321073667.5U CN202321073667U CN220914391U CN 220914391 U CN220914391 U CN 220914391U CN 202321073667 U CN202321073667 U CN 202321073667U CN 220914391 U CN220914391 U CN 220914391U
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- China
- Prior art keywords
- battery
- battery cover
- liquid injection
- injection hole
- cover plate
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- 239000000758 substrate Substances 0.000 title claims abstract description 55
- 239000007788 liquid Substances 0.000 claims abstract description 57
- 238000002347 injection Methods 0.000 claims abstract description 56
- 239000007924 injection Substances 0.000 claims abstract description 56
- 239000003792 electrolyte Substances 0.000 claims abstract description 42
- 238000005260 corrosion Methods 0.000 abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Gas Exhaust Devices For Batteries (AREA)
- Filling, Topping-Up Batteries (AREA)
Abstract
The utility model belongs to the technical field of batteries, and discloses a battery cover plate substrate, a battery cover plate and a battery. The battery cover plate substrate comprises a substrate body, wherein a liquid injection hole is formed in the substrate body, the liquid injection hole is formed in a groove structure, or a boss structure is arranged on the periphery of the liquid injection hole and used for preventing electrolyte at the liquid injection hole from overflowing, so that loss of the electrolyte is avoided, the service life and stability of a battery are further improved, the boss structure or the groove structure can prevent the electrolyte at the liquid injection hole from entering a pole column or an explosion-proof valve inside the battery, thereby avoiding micro short circuit of the battery or affecting the resistance value of the battery, reducing corrosion of the explosion-proof valve, improving the strength of the battery cover plate substrate, preventing the battery cover plate substrate from deforming and damaging, and further improving the stability and reliability of the battery.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a battery cover plate substrate, a battery cover plate and a battery.
Background
In the process of manufacturing the battery, the steps of liquid injection, formation and vacuum pumping are key steps, and the steps relate to the addition and treatment of electrolyte, but if the electrolyte is improperly treated, the electrolyte can enter a pole column in the battery to cause micro short circuit or influence the resistance value of the battery, and even enter the explosion-proof valve to cause corrosion of the explosion-proof valve. In addition, the substrate structure of the battery is a flat plate structure, and is easily deformed during the later use. In addition, control of the flow of electrolyte is also a concern in the battery manufacturing process, which can result in electrolyte loss if the electrolyte flows outside the battery, affecting the performance and life of the battery.
Therefore, there is a need for a battery cover substrate, a battery cover and a battery to solve the problems in the prior art
Disclosure of utility model
The utility model aims to provide a battery cover plate substrate, which can improve the structural strength of the battery cover plate substrate, prevent electrolyte at a liquid injection hole from overflowing into a battery, reduce the loss of the electrolyte and improve the safety and stability of the battery.
To achieve the purpose, the utility model adopts the following technical scheme:
The battery cover plate substrate comprises a substrate body, wherein a liquid injection hole is formed in the substrate body, the liquid injection hole is formed in a groove structure, or a boss structure is arranged on the periphery of the liquid injection hole, and the groove structure or the boss structure is configured to prevent electrolyte at the liquid injection hole from overflowing.
Optionally, an annular boss is disposed on the substrate body, and the annular boss and the liquid injection hole are coaxial.
Optionally, two strip-shaped bosses are respectively arranged on two sides of the liquid injection hole along the first direction.
Optionally, the two strip-shaped bosses are linear bosses, and the two linear bosses are parallel to each other.
Optionally, the two strip-shaped bosses are arc-shaped bosses, and openings of the two arc-shaped bosses are opposite.
Optionally, a groove is formed in the substrate body, and the liquid injection hole is located in the middle of the groove.
The utility model further aims to provide the battery cover plate, which can improve the structural strength of the battery cover plate, prevent electrolyte at the liquid injection hole from overflowing into the battery, reduce the loss of the electrolyte and improve the safety and stability of the battery.
To achieve the purpose, the utility model adopts the following technical scheme:
The battery cover plate comprises the battery cover plate substrate.
Optionally, the battery cover plate further comprises an explosion-proof valve disposed on the substrate body, the explosion-proof valve configured to open when the battery is internally over-pressurized.
Optionally, the battery cover plate further includes a positive electrode post and a negative electrode post, where the positive electrode post and the negative electrode post are respectively disposed at two ends of the substrate body.
Another object of the present utility model is to provide a battery capable of improving the safety and stability of the battery.
To achieve the purpose, the utility model adopts the following technical scheme:
The battery is characterized by comprising the battery cover plate.
The beneficial effects are that:
The battery cover plate substrate comprises a substrate body, wherein the substrate body is provided with the liquid injection hole, the liquid injection hole is arranged in the groove structure, or the periphery of the liquid injection hole is provided with the boss structure, the groove structure or the boss structure is used for preventing electrolyte at the liquid injection hole from overflowing, so that the loss of the electrolyte is avoided, the service life and the stability of a battery are further improved, the boss structure or the groove structure can prevent the electrolyte at the liquid injection hole from entering a pole column or an explosion-proof valve inside the battery, thereby avoiding micro short circuit of the battery or affecting the resistance value of the battery, reducing the corrosion of the explosion-proof valve, and the boss structure can also improve the strength of the battery cover plate substrate, prevent the battery cover plate substrate from deforming and damaging, and further improve the stability and the reliability of the battery.
The battery cover plate comprises the battery cover plate substrate, wherein the liquid injection hole is formed in the substrate body, the peripheral structure of the liquid injection hole adopts a groove structure or a boss structure, and the structures can effectively prevent electrolyte from overflowing at the liquid injection hole, so that loss of the electrolyte and influence on the performance of the battery are avoided, and meanwhile, the design can improve the tightness and stability of the battery, reduce the possibility of micro short circuit and resistance change in the battery, and prolong the service life and stability of the battery.
According to the battery provided by the utility model, the battery cover plate is applied, so that the loss of electrolyte and the possibility of corrosion to the battery can be reduced, and the performance and stability of the battery are improved, thereby prolonging the service life of the battery and improving the safety of the battery.
Drawings
Fig. 1 is a schematic view of a battery cover substrate according to a first embodiment of the present utility model;
Fig. 2 is a schematic structural diagram of a linear boss of a battery cover substrate according to a second embodiment of the present utility model;
Fig. 3 is a schematic structural diagram of a strip-shaped boss of a battery cover plate substrate provided by a second embodiment of the present utility model, which is an arc-shaped boss;
fig. 4 is a schematic structural diagram of a battery cover substrate according to a third embodiment of the present utility model;
Fig. 5 is a cross-sectional view of A-A in fig. 4.
In the figure:
100. A substrate body; 110. a liquid injection hole; 120. an annular boss; 130. linear type boss; 140. arc-shaped bosses; 150. a groove; 160. an explosion-proof valve; 170. a positive electrode post; 180. a negative electrode post.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
Example 1
As shown in fig. 1, the battery cover plate substrate provided in this embodiment includes a substrate body 100, a liquid injection hole 110 is formed in the substrate body 100, the liquid injection hole 110 is formed in a groove structure, or a boss structure is disposed on the periphery of the liquid injection hole 110, and is used for preventing electrolyte at the liquid injection hole 110 from overflowing, so that loss of electrolyte is avoided, the service life and stability of the battery are further improved, the boss structure or the groove structure can prevent the electrolyte at the liquid injection hole 110 from entering the pole column or the explosion-proof valve 160 inside of the battery, thereby avoiding micro-shorting of the battery or affecting the resistance value of the battery, reducing corrosion of the explosion-proof valve 160, and the boss structure can also improve the strength of the battery cover plate substrate, prevent the battery cover plate substrate from deforming and damaging, and further improve the stability and reliability of the battery.
Optionally, in this embodiment, the substrate body 100 is provided with an annular boss 120, where the annular boss 120 is concentric with the liquid injection hole 110, and the annular boss 120 can form an annular barrier around the liquid injection hole 110 to prevent the electrolyte from penetrating into the explosion-proof valve 160 or the battery post from the liquid injection hole 110. Specifically, when the battery is filled, the electrolyte tends to form a certain liquid pressure around the filling hole 110, and if no structure is provided around the filling hole 110, the electrolyte overflows along the filling hole 110, thereby causing waste and pollution of the electrolyte. In addition, the electrolyte can be prevented from overflowing to the position of the explosion-proof valve 160 or the pole of the battery, and short circuit or corrosion of the battery by the electrolyte can be avoided.
Example two
As shown in fig. 2-3, the battery cover plate substrate provided in this embodiment is substantially the same as that in the first embodiment, and is different from the first embodiment in that two strip-shaped bosses are respectively disposed on two sides of the liquid injection hole 110 along the first direction, and since the strip-shaped bosses are disposed on two sides of the liquid injection hole 110, they can effectively prevent the electrolyte from overflowing from two sides of the liquid injection hole 110, thereby avoiding waste and pollution of the electrolyte, and reducing the chance of the electrolyte entering the battery. In addition, this design may also increase the strength around the fill port 110, thereby better protecting components inside the battery.
In addition, the strip-shaped boss can play a certain guiding role, so that electrolyte can be more accurately injected into the liquid injection hole 110, and the liquid injection precision and efficiency are further improved.
Alternatively, as shown in fig. 2, the two bar-shaped bosses are linear bosses 130, and the two linear bosses 130 are parallel to each other, one of the advantages of the linear bosses 130 is that the structure thereof is relatively simple, and it is easy to manufacture and process. In addition, the provision of the linear bosses 130 can form both side barriers of the liquid injection hole 110, prevent the electrolyte from overflowing from both sides of the liquid injection hole 110, and at the same time, can increase the strength around the liquid injection hole 110, thereby better protecting the internal components of the battery.
Optionally, as shown in fig. 3, the two strip-shaped bosses are arc-shaped bosses 140, and the openings of the two arc-shaped bosses 140 are opposite, compared with the linear-shaped bosses 130, the arc-shaped bosses 140 are more closely attached to the shape of the liquid injection hole 110, so that the encircling effect is good, and electrolyte leakage from two sides can be better prevented. Meanwhile, due to the relative structural design of the openings, the center position of the liquid injection hole 110 is supported more stably, so that the strength and stability of the liquid injection hole 110 are improved, and components inside the battery are better protected.
Example III
As shown in fig. 4-5, the battery cover substrate provided in this embodiment is substantially the same as the first embodiment, and is different from the first embodiment in that in this embodiment, a groove 150 is formed in the substrate body 100, the liquid injection hole 110 is located in the middle of the groove 150, a groove structure is designed on the substrate body 100, so that the liquid injection hole 110 is located in the middle of the groove 150, and the electrolyte flowing out from the battery in the processes of liquid injection, formation and vacuum pumping is buffered in the groove 150, so as to avoid the electrolyte from entering the pole or the explosion-proof valve 160.
Alternatively, the shape of the groove 150 may be a circular groove, an elliptical groove, a rectangular groove, a triangular groove, or the like, and the shape of the groove 150 is not particularly limited in this embodiment.
Example IV
The battery cover plate provided by the embodiment comprises a battery cover plate substrate of any one of the first embodiment, the second embodiment and the third embodiment, wherein the substrate body 100 is provided with the liquid injection hole 110, the peripheral structure of the liquid injection hole 110 adopts a groove structure or a boss structure, and the structures can effectively prevent electrolyte from overflowing at the liquid injection hole 110, so that the loss of the electrolyte and the influence on the battery performance are avoided, and meanwhile, the design can improve the tightness and the stability of the battery, reduce the possibility of micro short circuit and resistance change inside the battery, and prolong the service life and the stability of the battery.
Optionally, the battery cover plate further includes an explosion-proof valve 160, where the explosion-proof valve 160 is disposed on the substrate body 100, and the explosion-proof valve 160 is configured to be opened when the battery is over-charged or over-pressurized, so that dangerous accidents such as explosion can be effectively prevented, thereby ensuring the safety of the user.
Optionally, the battery cover further includes a positive electrode post 170 and a negative electrode post 180, and the positive electrode post 170 and the negative electrode post 180 are disposed at two ends of the substrate body 100, respectively, so that the electrolyte and the electrode material inside the battery can sufficiently react to release more electric energy. In addition, the arrangement of the positive pole and the negative pole can also conveniently connect and use the battery, thereby improving the usability of the battery.
Example five
The battery provided by the embodiment can reduce the loss of electrolyte and the possibility of corrosion to the battery by applying the battery cover plate, and improve the performance and stability of the battery, thereby prolonging the service life of the battery and improving the safety of the battery.
It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.
Claims (10)
1. The battery cover plate substrate is characterized by comprising a substrate body (100), wherein a liquid injection hole (110) is formed in the substrate body (100), the liquid injection hole (110) is formed in a groove structure, or a boss structure is arranged on the periphery of the liquid injection hole (110), and the groove structure or the boss structure is configured to prevent electrolyte at the liquid injection hole (110) from overflowing.
2. The battery cover board according to claim 1, wherein an annular boss (120) is provided on the board body (100), and the annular boss (120) is concentric with the liquid injection hole (110).
3. The battery cover board according to claim 1, wherein two strip-shaped bosses are provided on both sides of the liquid injection hole (110) in the first direction, respectively.
4. A battery cover substrate according to claim 3, wherein two of said bar-shaped bosses are linear bosses (130), and wherein two of said linear bosses (130) are parallel to each other.
5. A battery cover substrate according to claim 3, wherein the two strip-shaped bosses are arc-shaped bosses (140), and openings of the two arc-shaped bosses (140) are opposite.
6. The battery cover board according to claim 1, wherein the board body (100) is provided with a groove (150), and the liquid injection hole (110) is located in the middle of the groove (150).
7. Battery cover plate, characterized in that it comprises a battery cover plate substrate according to any of claims 1-6.
8. The battery cover plate of claim 7, further comprising an explosion-proof valve (160), the explosion-proof valve (160) being disposed on the substrate body (100), the explosion-proof valve (160) being configured to open upon an overpressure inside the battery.
9. The battery cover plate according to claim 7, further comprising a positive electrode post (170) and a negative electrode post (180), the positive electrode post (170) and the negative electrode post (180) being disposed at both ends of the substrate body (100), respectively.
10. Battery comprising a battery cover according to any of claims 6-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321073667.5U CN220914391U (en) | 2023-05-05 | 2023-05-05 | Battery cover plate substrate, battery cover plate and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321073667.5U CN220914391U (en) | 2023-05-05 | 2023-05-05 | Battery cover plate substrate, battery cover plate and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220914391U true CN220914391U (en) | 2024-05-07 |
Family
ID=90902449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321073667.5U Active CN220914391U (en) | 2023-05-05 | 2023-05-05 | Battery cover plate substrate, battery cover plate and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220914391U (en) |
-
2023
- 2023-05-05 CN CN202321073667.5U patent/CN220914391U/en active Active
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| GR01 | Patent grant |