CN213546509U - Explosion-proof valve assembly and secondary battery - Google Patents
Explosion-proof valve assembly and secondary battery Download PDFInfo
- Publication number
- CN213546509U CN213546509U CN202022649878.1U CN202022649878U CN213546509U CN 213546509 U CN213546509 U CN 213546509U CN 202022649878 U CN202022649878 U CN 202022649878U CN 213546509 U CN213546509 U CN 213546509U
- Authority
- CN
- China
- Prior art keywords
- explosion
- proof valve
- base plate
- bottom cover
- liquid injection
- 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
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The embodiment of the utility model provides an explosion-proof valve subassembly and secondary battery relates to the secondary battery field. The explosion-proof valve component comprises a base plate, an explosion-proof valve bottom cover plate, an explosion-proof valve core, a sealing ring and an explosion-proof valve sealing cover; an explosion-proof valve liquid injection hole is formed in the base plate; the number of the explosion-proof valve bottom cover plates is two, the two explosion-proof valve bottom cover plates are respectively connected with two opposite sides of the base plate, and the two explosion-proof valve bottom cover plates are both provided with through holes communicated with the explosion-proof valve liquid injection holes; the explosion-proof valve core is connected with the substrate and at least partially accommodated in the liquid injection hole of the explosion-proof valve; the sealing ring is positioned between the explosion-proof valve core and one of the explosion-proof valve bottom cover plates and is connected with the base plate; the explosion-proof valve sealing cover is connected with the base plate and used for sealing the liquid injection hole of the explosion-proof valve. The embodiment of the utility model provides a in order to unite two into one the notes liquid hole among the prior art and explosion-proof valve opening to it is simpler to make, is favorable to reducing manufacturing cost. Meanwhile, the liquid injection speed can be effectively improved, and the liquid injection efficiency is accelerated.
Description
Technical Field
The utility model relates to a secondary battery field particularly, relates to an explosion-proof valve subassembly and secondary battery.
Background
The liquid injection hole and the explosion-proof valve of the existing secondary battery generally play their own roles, and the structural design of the structure comprises the following components: the utilization rate of the shell is low and the liquid injection pressure is limited. In the prior art, the explosion-proof valve and the liquid injection hole are two necessary structures, and the two functional parts are required to be welded and sealed, so that the structure of the top cover is relatively complex, the manufacturing process is relatively complex, and the integration level is poor. At the same time, the more structure points means that the risk points of functional failure are increased correspondingly. Meanwhile, due to the requirement of the production process of the battery cell, the explosion-proof valve needs to be welded on the shell in advance and then is filled with liquid, so that the liquid injection pressure is limited by the explosion-proof valve when the liquid is injected, otherwise, once the pressure is too large, the explosion-proof valve can be damaged in advance, and the battery cell fails.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an explosion-proof valve subassembly and secondary battery, it can unite two into one the notes liquid hole among the prior art and explosion-proof valve opening to make and make simpler, be favorable to reducing manufacturing cost. Meanwhile, the liquid injection speed can be effectively improved, and the liquid injection efficiency is accelerated.
The embodiment of the utility model is realized like this:
in a first aspect, the utility model provides an explosion-proof valve component, which comprises a base plate, an explosion-proof valve bottom cover plate, an explosion-proof valve core, a sealing ring and an explosion-proof valve sealing cover;
an explosion-proof valve liquid injection hole is formed in the base plate;
the number of the explosion-proof valve bottom cover plates is two, the two explosion-proof valve bottom cover plates are respectively connected with two opposite sides of the base plate, and through holes communicated with the explosion-proof valve liquid injection holes are formed in the two explosion-proof valve bottom cover plates;
the explosion-proof valve core is connected with the substrate and at least partially accommodated in the liquid injection hole of the explosion-proof valve;
the sealing ring is positioned between the explosion-proof valve core and one of the explosion-proof valve bottom cover plates and is connected with the base plate;
the explosion-proof valve sealing cover is connected with the base plate and used for sealing the liquid injection hole of the explosion-proof valve.
In an optional embodiment, the bottom cover plate of the explosion-proof valve comprises a bottom cover plate body and a connecting portion annularly arranged on the periphery of the bottom cover plate body, the through hole is arranged in the bottom cover plate body, the connecting portion is connected with the base plate, and the sealing ring abuts against and is held between the explosion-proof valve core and the connecting portion.
In an optional embodiment, the connecting portion includes a welding portion and a supporting portion, the supporting portion is annularly disposed on an outer periphery of the bottom cover body, the sealing ring is supported between the explosion-proof valve element and the supporting portion, and the welding portion is annularly disposed on an outer periphery of the supporting portion and welded to the substrate.
In an optional embodiment, the abutting portion is provided with an accommodating groove, and the sealing ring portion is accommodated in the accommodating groove, or the sealing ring portion is clamped in the accommodating groove.
In an optional embodiment, the base plate is provided with a mounting groove for accommodating the welding part, and the mounting groove is annularly arranged on the liquid injection hole of the explosion-proof valve.
In an optional embodiment, a protruding portion is arranged on the periphery of the explosion-proof valve core, and the sealing ring abuts between the protruding portion and the abutting portion.
In an optional embodiment, the explosion-proof valve bottom cover plate and the explosion-proof valve core are respectively welded on the base plate; and/or the sealing ring and the sealing cover of the explosion-proof valve are respectively bonded on the substrate.
In an optional implementation mode, the substrate is further provided with a positive electrode post and a negative electrode post, and the explosion-proof valve liquid injection hole is located between the positive electrode post and the negative electrode post.
In an alternative embodiment, the shape of the liquid injection hole of the explosion-proof valve comprises a rectangular hole or an oblong hole.
In a second aspect, the present invention provides a secondary battery, comprising a top cover and an explosion-proof valve assembly as described in any one of the above embodiments, wherein the base plate is connected to the top cover, or the base plate and the top cover are integrally formed.
The embodiment of the utility model provides an explosion-proof valve subassembly and secondary battery: the explosion-proof valve component comprises a base plate, explosion-proof valve bottom cover plates, an explosion-proof valve core, a sealing ring and an explosion-proof valve sealing cover, wherein the explosion-proof valve core and the sealing ring are limited between the two explosion-proof valve bottom cover plates by the two explosion-proof valve bottom cover plates, and the sealing ring is positioned between the explosion-proof valve core and one of the explosion-proof valve bottom cover plates, so that the explosion-proof valve can achieve a good sealing effect. The sealing cover of the explosion-proof valve is connected with the base plate, so that the sealing performance of the liquid injection hole of the explosion-proof valve is further improved. The embodiment of the utility model provides an in, be provided with explosion-proof valve on the base plate and annotate the liquid hole, can unite two into one the notes liquid hole among the prior art and explosion-proof valve opening to it is simpler to make, is favorable to reducing manufacturing cost. Simultaneously, the aperture of the explosion-proof valve is bigger than the aperture of a general liquid injection hole, and the liquid injection speed can be effectively increased by using the liquid injection hole of the explosion-proof valve under the condition that the sealing performance of the explosion-proof valve is not reduced. In addition, when annotating the liquid hole through explosion-proof valve and annotating the liquid, do not have the pressure restriction of explosion-proof valve, consequently, can promote notes liquid pressure when annotating the liquid for annotate liquid efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of an explosion-proof valve assembly provided by an embodiment of the present invention;
FIG. 2 is an exploded schematic view of the explosion-proof valve assembly of FIG. 1;
FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 1;
fig. 4 is an enlarged schematic view of a portion B in fig. 3.
Icon: 100-an explosion-proof valve assembly; 110-a substrate; 111-explosion-proof valve liquid injection hole; 112-mounting grooves; 113-positive pole column; 114-negative electrode post; 120-explosion-proof valve bottom cover plate; 121-bottom cap piece body; 122-a connecting portion; 1221-a holding portion; 1222-a weld; 130-explosion-proof valve core; 131-a projection; 140-a sealing ring; 150-explosion-proof valve sealing cover.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; 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 in specific cases to those skilled in the art.
Referring to fig. 1-3, an embodiment of the present invention provides an explosion-proof valve assembly 100. The explosion-proof valve assembly 100 may be applied to a secondary battery. The secondary battery can be applied to electric equipment such as a new energy automobile.
In the embodiment of the present invention, the explosion-proof valve assembly 100 includes a base plate 110, an explosion-proof valve bottom cover plate 120, an explosion-proof valve core 130, a sealing ring 140 and an explosion-proof valve sealing cover 150; the base plate 110 is provided with an explosion-proof valve liquid injection hole 111; the number of the two explosion-proof valve bottom cover plates 120 is two, the two explosion-proof valve bottom cover plates 120 are respectively connected with two opposite sides of the base plate 110, and the two explosion-proof valve bottom cover plates 120 are both provided with through holes communicated with the explosion-proof valve liquid injection hole 111; the explosion-proof valve core 130 is connected with the base plate 110 and at least partially accommodated in the explosion-proof valve liquid injection hole 111; the sealing ring 140 is positioned between the explosion-proof valve core 130 and one of the explosion-proof valve bottom cover plates 120 and is connected with the base plate 110; the explosion-proof valve sealing cover 150 is connected to the base plate 110 for sealing the injection hole 111 of the explosion-proof valve.
It should be noted that, in the embodiment of the present invention, the substrate 110 may be a top cap of a secondary battery, and a terminal connected to a tab of an electric core may be disposed on the top cap. Of course, the substrate 110 may be connected to the top cap of the secondary battery by a method including, but not limited to, welding, integral molding, and the like.
The embodiment of the utility model provides an in, can annotate liquid hole 111 through the explosion-proof valve that sets up on base plate 110 and annotate the liquid, and need not to set up solitary notes liquid hole again, promptly the embodiment of the utility model provides a cancel solitary notes liquid hole design, make the hole of annotating liquid hole and explosion-proof valve unite two into one to make and make simpler, be favorable to reducing manufacturing cost. Meanwhile, the aperture of the explosion-proof valve is larger than that of a common liquid injection hole, and the liquid injection speed can be effectively increased by using the liquid injection hole 111 of the explosion-proof valve under the condition that the sealing performance of the explosion-proof valve is not reduced.
When the explosion-proof valve assembly 100 provided by the embodiment of the present invention is applied to a secondary battery, the substrate 110 is disposed on a top cover of the secondary battery, or the substrate 110 and the top cover are integrally formed; the liquid injection can be completed through the liquid injection hole 111 of the explosion-proof valve; after the liquid injection is completed, the explosion-proof valve bottom cover plate 120, the explosion-proof valve core 130, the sealing ring 140 and the explosion-proof valve sealing cover 150 are assembled on the substrate 110, so that the assembly and assembly of the secondary battery are realized. That is to say, in the embodiment of the present invention, when the liquid is injected through the liquid injection hole 111 of the explosion-proof valve, the explosion-proof valve is not connected to the substrate 110, so that the liquid injection pressure can be increased during the liquid injection, and the liquid injection efficiency can be accelerated; the liquid injection process is not limited by the pressure of an explosion-proof valve, so that the liquid injection efficiency is improved.
To the utility model discloses embodiment, explosion-proof valve bottom plate 120 is connected fixedly with base plate 110, can be spacing explosion-proof case 130, sealing washer 140 between two explosion-proof valve bottom plate 120, and sealing washer 140 is located between explosion-proof valve bottom plate 120 and the explosion-proof case 130, can provide good sealed effect.
Referring to fig. 4, in an alternative embodiment, the anti-explosion valve bottom cover 120 includes a bottom cover body 121 and a connecting portion 122 annularly disposed on the periphery of the bottom cover body 121, the through hole is disposed on the bottom cover body 121, the connecting portion 122 is connected to the base plate 110, and the sealing ring 140 abuts between the anti-explosion valve core 130 and the connecting portion 122.
It should be understood that the connection portion 122 is used for connecting with the substrate 110, and the connection manner may be soldering or the like. The connecting portion 122 is disposed around the periphery of the bottom cover plate body 121, that is, the connecting portion can be connected to the substrate 110 at the periphery of the bottom cover plate body 121, so as to ensure a good connecting effect. Meanwhile, it should also be understood that the connecting portion 122 is connected to the base plate 110 on one hand, and also facilitates the confinement of the explosion-proof valve core 130 and the sealing ring 140 between the two explosion-proof valve bottom cover plates 120 on the other hand.
Further, the connecting portion 122 includes a welding portion 1222 and a supporting portion 1221, the supporting portion 1221 is annularly disposed on the outer periphery of the bottom cover plate body 121, the sealing ring 140 is supported between the anti-explosion valve element 130 and the supporting portion 1221, and the welding portion 1222 is annularly disposed on the outer periphery of the supporting portion 1221 and is welded to the substrate 110.
Optionally, the abutting portion 1221 is provided with a receiving groove, and a portion of the sealing ring 140 is received in the receiving groove, or a portion of the sealing ring 140 is clamped in the receiving groove. The containing groove can limit the sealing ring 140, so that the sealing ring 140 can be assembled conveniently, and the sealing effect can be ensured.
The explosion-proof valve bottom cover 120 may be an integrally formed structure, and the bottom cover body 121, the connecting portion 122, the welding portion 1222, and the abutting portion 1221 may be formed by a process such as stamping, bending, or injection molding. In the embodiment of the present invention, the explosion-proof valve element 130, the sealing ring 140 and the sealing cover 150 of the explosion-proof valve can also be an integrally formed structure.
Optionally, the base plate 110 is provided with a mounting groove 112 for receiving the welding portion 1222, and the mounting groove 112 is disposed around the injection hole 111 of the explosion-proof valve.
The mounting groove 112 is formed by recessing from the side surface of the base plate 110, surrounds the periphery of the liquid injection hole 111 of the explosion-proof valve, and is welded with the welding part 1222, and the stability is high by adopting a welding mode. In other embodiments of the present invention, other connection methods may be adopted.
In an alternative embodiment, the outer periphery of the explosion-proof valve core 130 is provided with a convex portion 131, and the sealing ring 140 abuts between the convex portion 131 and the abutting portion 1221. The protrusion 131 can reduce the distance between the explosion-proof valve core 130 and the explosion-proof valve bottom cover plate 120, so that the sealing ring 140 can be better abutted between the protrusion 131 and the abutting portion 1221.
In an alternative embodiment, the explosion-proof valve bottom cover plate 120 and the explosion-proof valve core 130 are respectively welded on the base plate 110; and/or, the sealing ring 140 and the explosion-proof valve sealing cover 150 are respectively adhered to the base plate 110.
With continued reference to fig. 1 and 2, in an alternative embodiment, the substrate 110 is further provided with a positive electrode post 113 and a negative electrode post 114, and the explosion-proof valve injection hole 111 is located between the positive electrode post 113 and the negative electrode post 114.
Alternatively, the shape of the explosion-proof valve filling hole 111 includes a rectangular hole or an oblong hole.
The utility model provides a secondary battery, including the top cap and as in any one of the preceding embodiments explosion-proof valve subassembly 100, base plate 110 is connected with the top cap, perhaps, base plate 110 and top cap integrated into one piece. That is, the substrate 110 may be a top cover of the secondary battery, and at this time, the top cover of the secondary battery is provided with the above-mentioned liquid injection hole 111 of the explosion-proof valve; alternatively, the substrate 110 may be connected to a top cover, and in this case, the top cover may be provided with a through hole communicating with the filling hole 111 of the explosion-proof valve.
Preferably, the substrate 110 is integrally formed with the top cap or the substrate 110 is a top cap of the secondary battery, so that the thickness of the top cap of the secondary battery is not too thick, which is advantageous for increasing the energy density of the secondary battery.
Referring to fig. 1 to 4, an explosion-proof valve assembly 100 and a secondary battery according to an embodiment of the present invention are shown: the explosion-proof valve assembly 100 comprises a base plate 110, explosion-proof valve bottom cover plates 120, an explosion-proof valve core 130, a sealing ring 140 and an explosion-proof valve sealing cover 150, wherein the two explosion-proof valve bottom cover plates 120 limit the explosion-proof valve core 130 and the sealing ring 140 between the two explosion-proof valve bottom cover plates 120, and the sealing ring 140 is positioned between the explosion-proof valve core 130 and one of the explosion-proof valve bottom cover plates 120, so that the explosion-proof valve can have a good sealing effect. The sealing cover 150 of the explosion-proof valve is connected with the base plate 110, which is beneficial to further improving the sealing performance of the injection hole 111 of the explosion-proof valve. The embodiment of the utility model provides an in, be provided with explosion-proof valve on the base plate 110 and annotate liquid hole 111, can unite two into one the notes liquid hole among the prior art and explosion-proof valve opening to make and make simpler, be favorable to reducing manufacturing cost. Meanwhile, the aperture of the explosion-proof valve is larger than that of a common liquid injection hole, and the liquid injection speed can be effectively increased by using the liquid injection hole 111 of the explosion-proof valve under the condition that the sealing performance of the explosion-proof valve is not reduced. In addition, when liquid is injected through the liquid injection hole 111 of the explosion-proof valve, the pressure of the explosion-proof valve is not limited, so that the liquid injection pressure can be increased during liquid injection, and the liquid injection efficiency is accelerated.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An explosion-proof valve component is characterized by comprising a base plate (110), an explosion-proof valve bottom cover plate (120), an explosion-proof valve core (130), a sealing ring (140) and an explosion-proof valve sealing cover (150);
an explosion-proof valve liquid injection hole (111) is formed in the base plate (110);
the number of the explosion-proof valve bottom cover plates (120) is two, the two explosion-proof valve bottom cover plates (120) are respectively connected with two opposite sides of the base plate (110), and through holes communicated with the explosion-proof valve liquid injection hole (111) are formed in the two explosion-proof valve bottom cover plates (120);
the explosion-proof valve core (130) is connected with the base plate (110) and at least partially accommodated in the explosion-proof valve liquid injection hole (111);
the sealing ring (140) is positioned between the explosion-proof valve core (130) and one of the explosion-proof valve bottom cover plates (120) and is connected with the base plate (110);
the explosion-proof valve sealing cover (150) is connected with the base plate (110) and is used for sealing the explosion-proof valve liquid injection hole (111).
2. The explosion-proof valve assembly according to claim 1, wherein the explosion-proof valve bottom cover plate (120) comprises a bottom cover plate body (121) and a connecting portion (122) annularly arranged on the periphery of the bottom cover plate body (121), the through hole is arranged on the bottom cover plate body (121), the connecting portion (122) is connected with the base plate (110), and the sealing ring (140) is abutted between the explosion-proof valve core (130) and the connecting portion (122).
3. The explosion-proof valve assembly according to claim 2, wherein the connecting portion (122) comprises a welding portion (1222) and an abutting portion (1221), the abutting portion (1221) is annularly arranged on the periphery of the bottom cover plate body (121), the sealing ring (140) abuts between the explosion-proof valve core (130) and the abutting portion (1221), and the welding portion (1222) is annularly arranged on the periphery of the abutting portion (1221) and is welded with the base plate (110).
4. An explosion-proof valve assembly according to claim 3, wherein the retaining portion (1221) is provided with a receiving groove in which the sealing ring (140) is partially received or in which the sealing ring (140) is partially retained.
5. An explosion-proof valve assembly according to claim 3, characterized in that the base plate (110) is provided with a mounting groove (112) accommodating the welding portion (1222), the mounting groove (112) being provided around the explosion-proof valve filling hole (111).
6. An explosion-proof valve assembly according to claim 3, characterized in that the periphery of the explosion-proof valve core (130) is provided with a bulge (131), and the sealing ring (140) abuts between the bulge (131) and the abutting portion (1221).
7. An explosion-proof valve assembly according to any one of claims 1 to 6 wherein the explosion-proof valve base plate (120) and the explosion-proof valve cartridge (130) are welded to the base plate (110), respectively; and/or the sealing ring (140) and the explosion-proof valve sealing cover (150) are respectively bonded on the base plate (110).
8. The explosion-proof valve assembly according to any one of claims 1 to 6, wherein the base plate (110) is further provided with a positive pole post (113) and a negative pole post (114), and the explosion-proof valve injection hole (111) is located between the positive pole post (113) and the negative pole post (114).
9. Explosion-proof valve assembly according to any of claims 1 to 6, characterized in that the shape of the explosion-proof valve filling orifice (111) comprises a rectangular or oblong orifice.
10. A secondary battery comprising a top cover and the explosion-proof valve assembly (100) of any one of claims 1 to 9, wherein the base plate (110) is connected to the top cover, or wherein the base plate (110) is integrally formed with the top cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022649878.1U CN213546509U (en) | 2020-11-16 | 2020-11-16 | Explosion-proof valve assembly and secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022649878.1U CN213546509U (en) | 2020-11-16 | 2020-11-16 | Explosion-proof valve assembly and secondary battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213546509U true CN213546509U (en) | 2021-06-25 |
Family
ID=76482385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022649878.1U Active CN213546509U (en) | 2020-11-16 | 2020-11-16 | Explosion-proof valve assembly and secondary battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213546509U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114397100A (en) * | 2021-12-29 | 2022-04-26 | 东软睿驰汽车技术（沈阳）有限公司 | Method and device for determining installation number of explosion-proof valves |
-
2020
- 2020-11-16 CN CN202022649878.1U patent/CN213546509U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114397100A (en) * | 2021-12-29 | 2022-04-26 | 东软睿驰汽车技术（沈阳）有限公司 | Method and device for determining installation number of explosion-proof valves |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114497836A (en) | Full utmost point ear top cap subassembly and full utmost point ear battery | |
| CN114512748A (en) | Full utmost point ear top cap subassembly and full utmost point ear battery | |
| CN213546509U (en) | Explosion-proof valve assembly and secondary battery | |
| CN215815984U (en) | Battery and electronic product | |
| CN218123567U (en) | Cylindrical lithium ion battery | |
| CN115621631B (en) | End cover assembly, battery cell, energy storage device and electric equipment | |
| CN219163538U (en) | Top cap subassembly, battery and battery module | |
| CN218919081U (en) | Button cell | |
| CN218769984U (en) | Battery and electronic device | |
| CN213636126U (en) | Battery top cap and battery | |
| CN215070095U (en) | Battery with a battery cell | |
| CN214625188U (en) | Power battery cover plate assembly and power battery | |
| CN115425344A (en) | Top cover assembly and battery | |
| CN201041812Y (en) | A battery cover board component and battery | |
| CN216362149U (en) | Button cell and cover plate assembly thereof | |
| JP6226466B2 (en) | Battery holder, assembled battery | |
| WO2022116475A1 (en) | Top cover assembly and secondary battery | |
| CN113437350A (en) | Battery with a battery cell | |
| CN217009287U (en) | Cylindrical lithium ion battery | |
| CN221009060U (en) | Top cap subassembly and have its battery cell | |
| CN113972449B (en) | Battery and electronic product | |
| WO2023181796A1 (en) | Bipolar storage battery | |
| CN218351573U (en) | Top cap subassembly, battery and battery package | |
| CN217334242U (en) | Battery with a battery cell | |
| CN219534840U (en) | Battery cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |