CN217655971U - Battery cover plate, battery and energy storage equipment - Google Patents
Battery cover plate, battery and energy storage equipment Download PDFInfo
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- CN217655971U CN217655971U CN202221651616.1U CN202221651616U CN217655971U CN 217655971 U CN217655971 U CN 217655971U CN 202221651616 U CN202221651616 U CN 202221651616U CN 217655971 U CN217655971 U CN 217655971U
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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
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Abstract
The utility model discloses a battery apron, battery and energy storage equipment. The battery cover plate comprises a cover plate body, wherein an explosion-proof valve opening and an explosion-proof valve are arranged on the cover plate body, the explosion-proof valve is arranged in the explosion-proof valve opening, the outer edge of the explosion-proof valve is connected with the inner edge of the explosion-proof valve opening, a raised reinforcing rib is arranged on the cover plate body along the circumferential direction of the explosion-proof valve, and at least one part of the reinforcing rib is embedded into the cover plate body. The battery cover plate can avoid the problem that the peripheral cover plate of the explosion-proof valve deforms under the action of external force and further influences the opening pressure of the explosion-proof valve due to the fact that the groove or the opening hole of the explosion-proof valve is formed on the basis that the weight of the battery cover plate is not obviously increased, the stability of the explosion-proof valve and the stability of the cover plate are improved, and the safety performance of a battery is improved.
Description
Technical Field
The utility model belongs to the technical field of the battery, particularly, relate to battery apron, battery and energy storage equipment.
Background
With the increasing maturity of lithium ion battery technology and the wide application of lithium ion battery as power battery in the fields of electric vehicles and energy storage, people have increasingly raised requirements on the service performance and safety of lithium ion batteries. The lithium battery top cap is as an accessory among the lithium ion battery, and its effect makes interior external environment isolated play sealed effect at first through welding with the aluminum hull after, secondly connects interior external circuit, carries the outside through the top cap utmost point post to battery internal current, plays the water conservancy diversion effect. The traditional top cover mainly comprises a smooth aluminum sheet, namely a conductive block for connecting a pole post and an external circuit, a positive pole post, a negative pole post, upper plastic, lower plastic, a sealing ring and an explosion-proof valve; wherein, explosion-proof valve welding sets up on the smooth aluminum sheet.
At present, the most commonly used top cover explosion-proof valve position structure is that a groove is punched on an aluminum sheet, then an explosion-proof valve is placed in the groove and fixed through laser welding, but the strength of the aluminum sheet is reduced after the explosion-proof valve through hole is punched on the aluminum sheet, the deformation of the aluminum sheet is large when gas is produced in the battery, the stability of the explosion-proof valve is reduced, even the explosion-proof valve is broken, and potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, an object of the utility model is to provide a battery apron, battery and energy storage equipment to realize when not obviously increasing apron weight, improve the explosion-proof valve position local strength on the apron, strengthen explosion-proof valve stability.
In an aspect of the utility model, the utility model provides a battery cover plate, according to the utility model discloses an embodiment, this battery cover plate is including the apron body, be equipped with explosion-proof valve trompil and explosion-proof valve on the apron body, the explosion-proof valve is established in the explosion-proof valve trompil just the outer fringe of explosion-proof valve with the inner edge of explosion-proof valve trompil links to each other, follow on the apron body the circumference of explosion-proof valve is equipped with bellied strengthening rib, at least some embedding of strengthening rib the apron is originally internal.
Furthermore, the cover plate body is provided with a plurality of micro-nano holes in the area opposite to the reinforcing ribs, and at least one part of the reinforcing ribs is embedded in the micro-nano holes.
Furthermore, the reinforcing ribs are made of plastic materials.
Furthermore, the reinforcing ribs are arranged on one side of the cover plate body, which is far away from the pole piece, or one side of the cover plate body, which is towards the pole piece.
Furthermore, the height of the protrusions of the reinforcing ribs is 0.5-3 mm.
Further, the distance between the inner surface of the reinforcing rib and the opening of the explosion-proof valve is not less than 1mm; and/or the distance between the inner surface of the reinforcing rib and the opening of the explosion-proof valve is not more than 3mm.
Further, the ratio of the height of the reinforcing ribs to the width of the reinforcing ribs is 0.5-2.
Further, the surface of the explosion-proof valve is provided with an explosion-proof valve protective film.
Compared with the prior art, the battery cover plate has the following beneficial effects: 1. the raised reinforcing ribs are arranged on the periphery of the explosion-proof valve, so that the periphery of the explosion-proof valve of the cover plate can be effectively protected, the local strength is enhanced, the problems that the peripheral cover plate of the explosion-proof valve deforms under the action of external force due to the groove or the opening of the explosion-proof valve and the opening pressure of the explosion-proof valve is further influenced are solved, the stability of the explosion-proof valve and the cover plate is improved, and the safety performance of a battery is improved; 2. can form micro-nano hole on the peripheral apron surface of explosion-proof valve, make at least some embedding of strengthening rib realize in this micro-nano hole with the combination of apron, can increase the area of contact of strengthening rib and apron on the one hand, improve the bonding strength of the two, on the other hand, can also form the strengthening rib through injection moulding's mode, the strengthening rib can be the plastics material this moment, plastics light in weight can be when not obviously increasing apron weight, improve the intensity of explosion-proof valve position on the apron.
In another aspect of the present invention, the present invention provides a battery. According to the utility model discloses an embodiment, this battery includes the battery apron described in the preceding. The battery has all the features and effects of the battery cover plate, which are not described in detail herein. Generally speaking, compared with the prior art, the anti-explosion valve of the battery has the advantages of good stability, strong structural reliability and better safety performance.
In yet another aspect of the present invention, the utility model provides an energy storage device. According to the utility model discloses an embodiment, energy storage equipment includes the preceding battery. This energy storage equipment has the whole characteristics and the effect of battery apron previously mentioned, and the no longer repeated description herein. Generally speaking, compared with the prior art, the energy storage device has the advantages of high safety, strong reliability, high customer satisfaction and the like.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic diagram of a battery cover plate structure according to an embodiment of the present invention;
fig. 2 is a schematic diagram showing a comparison of the structure of a battery cover plate before etching (as shown in a in fig. 2), after etching (as shown in b in fig. 2) and after nano injection molding to form reinforcing ribs (as shown in c in fig. 2) according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional structure diagram of a battery cover plate according to an embodiment of the present invention;
FIG. 4 is a top view of the battery cover plate shown in FIG. 3;
fig. 5 is a partially enlarged view of a sectional structure of the battery cap plate according to fig. 3;
fig. 6 is a schematic cross-sectional view illustrating a battery cover according to another embodiment of the present invention;
FIG. 7 is a top view of the battery cover plate shown in FIG. 6;
fig. 8 is a partially enlarged view of a sectional structure of the battery cap plate according to fig. 6.
Wherein:
10-a cover plate body; 11-opening an explosion-proof valve; 12-an explosion-proof valve; 13-reinforcing ribs; 14-liquid injection hole; 15-hole cover of liquid injection hole; 16-a conductive block; 17-coating plastic; 18-lower plastic cement; 19-a sealing ring; 20-pole column; 21-micro nano-pores.
L 1 : the distance between the inner surface of the reinforcing rib and the opening of the explosion-proof valve; l is 2 : the width of the reinforcing ribs; h 1 : the height of the ribs.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary intended for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the present application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In one aspect of the present invention, the utility model provides a battery cover plate. According to the utility model discloses an embodiment, understand with reference to fig. 1, this battery apron includes: the cover plate comprises a cover plate body 10, wherein an explosion-proof valve opening 11 and an explosion-proof valve 12 are arranged on the cover plate body 10, the explosion-proof valve 12 is arranged in the explosion-proof valve opening 11, the outer edge of the explosion-proof valve 12 is connected with the inner edge of the explosion-proof valve opening 11, a protruding reinforcing rib 13 is arranged on the cover plate body 10 along the circumferential direction of the explosion-proof valve 12, and at least one part of the reinforcing rib 13 is embedded into the cover plate body 10. This battery cover plate can effectively protect around the explosion-proof valve of apron through set up bellied strengthening rib in explosion-proof valve circumference, and reinforcing local strength avoids the explosion-proof valve to lead to its surrounding apron to warp and then the problem that influences explosion-proof valve opening pressure that arouses under the exogenic action because of recess or trompil, improves the stability of explosion-proof valve and apron, improves the security performance of battery. The combination with the cover plate is realized by embedding at least one part of the reinforcing rib into the micro-nano hole, and the combination strength of the reinforcing rib and the cover plate can be improved.
The cell according to the above embodiment of the present invention is described in detail with reference to fig. 1 to 8.
According to the utility model discloses an embodiment, refer to fig. 1 ~ 2 and understand, the region relative with strengthening rib 13 on the apron body 10 can be equipped with a plurality of micro-nano holes 21, in at least some embedding micro-nano holes 21 of strengthening rib 13. It should be noted that the manner of forming the micro-nano holes on the surface of the cover plate body is not particularly limited, and those skilled in the art can flexibly select the micro-nano holes according to actual needs, for example, T-treatment can be performed on the cover plate body, an acid etching or alkali etching manner is adopted, and the pore size and the pore depth of the micro-nano holes are controlled by controlling the concentration of the etching solution, the etching time, and the like. Wherein, through realizing the two connection in making the strengthening rib embedding apron body surface's a plurality of micro-nano holes, can increase the area of contact of strengthening rib and apron body on the one hand, improve the two joint strength, on the other hand can also form the strengthening rib through injection moulding's mode, and the strengthening rib can be the plastics material this moment, and plastics material light in weight can improve the apron and go up the intensity in explosion-proof valve region when not obviously increasing apron weight.
According to the utility model discloses an embodiment, strengthening rib 13 can be the plastics material, can be epoxy for example. When the reinforcing rib is made of plastic, the reinforcing rib can be formed by adopting a nano injection molding process. For example, the following steps may be included: 1) Protecting the area of the cover plate body without the reinforcing ribs; 2) Etching the exposed area of the surface of the cover plate body to form a rough surface with micro-nano holes; 3) Cleaning and drying the etched cover plate body; 4) And carrying out nano injection molding on the cleaned and dried cover plate to obtain the explosion-proof valve reinforcing rib with the required structure.
According to the embodiment of the utility model, the degree of depth of micro-nano hole 21 is not restricted very much, the technical staff in the field can select according to actual need, for example can be not more than 1/4 or 1/5 of apron body 10 thickness etc, for example can be for 1 ~ 5mm etc. again, the inventor discovers, if the degree of depth undersize of micro-nano hole, the area of contact of strengthening rib and apron body is also less, bonding strength between the two is unsatisfactory, and if the degree of depth of micro-nano hole is too big, not only can cause the technology extravagant, still can lead to having to be the regional intensity of nanopore and show the decline, be above-mentioned scope through the degree of depth of controlling micro-nano hole, more be favorable to taking into account the bonding strength of strengthening rib and apron body and the intensity of apron body simultaneously.
According to the utility model discloses an embodiment, strengthening rib 13 both can establish the one side of keeping away from pole piece (not shown) on apron body 10, also can establish the one side towards the pole piece on apron body 10. For example, referring to fig. 3, the reinforcing rib 13 is disposed on the side of the cover plate body 10 away from the pole piece, that is, the outer surface of the cover plate body may be disposed; for another example, referring to fig. 6, a rib 13 is provided on the cover plate body 10 toward the pole piece side, i.e., the inner surface of the cover plate. It can be understood that no matter the reinforcing ribs are arranged on the inner surface or the outer surface of the cover plate body, the reinforcing ribs can play a role in reinforcing the local strength of the explosion-proof valve.
According to an embodiment of the present invention, the protrusion height H of the reinforcing ribs 13 can be understood with reference to fig. 5 or 8 1 May be 0.5 to 3mm. The inventor finds that if the height of the bulge is too small, the implementation of the injection molding process is not facilitated, and the reinforcing effect is not obvious; if the protruding height is too big, on the one hand, can occupy great exterior space, and the die assembling is unfavorable, and on the other hand, after protruding height reached a definite value, further increase its height and be not showing the promotion of reinforcement effect, still can cause the waste of material. The utility model discloses in the protruding height through control strengthening rib be above-mentioned scope, can reach better reinforcement effect under the prerequisite that does not influence the module assembly on the one hand, on the other hand still is convenient for injection moulding process's implementation when adopting nanometer injection moulding process to form the strengthening rib to guarantee the effect of moulding plastics. It can be understood with reference to fig. 3 that, when the reinforcing ribs 13 are disposed on the side of the cover plate body 10 away from the pole piece, the protruding height thereof preferably does not exceed the height of the conductive block that realizes the communication between the pole and the external circuit; as will be understood by referring to fig. 6, when the reinforcing ribs 13 are disposed on the side of the cover plate body 10 facing the pole piece, the protruding height thereof preferably does not exceed the surface of the pole post, so that the reinforcing effect on the cover plate body can be improved without affecting the overall structure of the battery.
According to the embodiment of the present invention, the distance L between the inner surface of the reinforcing rib 13 and the explosion-proof valve opening 11 can be understood with reference to fig. 5 or 8 1 And may be not less than 1mm. The inventors found that if L is 1 Too small, the difficulty of the injection molding process is increased, which is not favorable for obtaining the reinforcing rib with high precision and excellent quality. Further, as understood with reference to fig. 5 or 8, the distance L between the inner surface of the reinforcing rib 13 and the explosion-proof valve opening 11 1 And may be no greater than 3mm. The inventors found that if L is 1 Too big, the strengthening rib internal surface is too big apart from explosion-proof valve outer fringe distance, and is not obvious to the effect that promotes apron body local strength, is difficult to make explosion-proof valve have sufficient stability and resistance to deformation.
According to an embodiment of the present invention, the height H of the reinforcing bars is understood with reference to fig. 5 or 8 1 Width L of reinforcing bar 2 The ratio of (b) may be 0.5 to 2, for example 0.6, 0.7, 0.8, 0.9, 1, 1.2 or 1.5. The inventor finds that when the width of the reinforcing rib is increased after the height of the reinforcing rib protrusion is determined, the combination area of the reinforcing rib and the cover plate body is larger, the combination strength is also higher, and the reinforcing effect on the cover plate body and the explosion-proof valve is obviously enhanced, but if the width of the reinforcing rib is too large, on one hand, due to the limited width of the cover plate body, a large enough space cannot be provided for accommodating the reinforcing rib, and on the other hand, unnecessary waste is caused; in addition, when the height of the rib is determined, if the width is too small, the height H of the rib 1 Width L of reinforcing bar 2 Too large ratio of (b) can cause the raised plastic to have certain brittleness, resulting in weaker strength of the reinforcing rib in the height direction, and weakening the reinforcing effect on the explosion-proof valve. The utility model discloses in height and width through the control strengthening rib be above-mentioned ratio scope, both can reach better reinforcement effect, still can not influence the original structure of battery.
According to the embodiment of the present invention, the surface of the explosion-proof valve 12 may also be provided with an explosion-proof valve protection film (not shown). The anti-explosion valve protection film can prevent foreign matters from extruding the anti-explosion valve to cause the anti-explosion valve to deform, so that the stability of the opening pressure of the anti-explosion valve can be further improved, and the influence of the extrusion deformation of the anti-explosion valve on the opening pressure of the anti-explosion valve is avoided.
According to the embodiment of the present invention, referring to fig. 3 or fig. 6, it can be understood that the cover plate body 10 may further be provided with a liquid injection hole 14, a hole cover 15 for sealing the liquid injection hole, a conductive block 16, an upper plastic 17, a lower plastic 18, a sealing ring 19, a pole 20, and the like. The pole 20 penetrates through the cover plate body 10 and contacts with the conductive block 16 to achieve communication with an external circuit, specifically, the pole 20 can penetrate through the cover plate body 10 and then is connected with the conductive block 16 in a riveting mode, and laser welding is performed along the riveted edge to reduce the connection resistance of the pole and the conductive block; the upper plastic 17 is sleeved outside the pole 20 and is not higher than the conductive block 16, and the function of the upper plastic is to realize insulation protection so as to avoid short circuit caused by contact between the pole and a metal battery shell (such as an aluminum shell) or a cover plate; the sealing rings 19 are arranged between the cover plate body 10 and the pole 20 and between the lower surface of the cover plate body 10 and the pole 20, so that a sealing effect is achieved, and an insulating sealing protection effect is achieved; the lower plastic 18 is disposed on the side of the cover plate 10 facing the inside of the battery, and the function of the lower plastic is to achieve the insulation protection effect, so as to avoid short circuit caused by the contact between the terminal and the metal battery case (such as an aluminum case) or the cover plate.
According to the utility model discloses an embodiment, this battery cover plate can be for anodal apron or negative pole apron, also can draw forth anodal post and negative pole post simultaneously. In addition, it can be understood that the structure or the forming mode of the explosion-proof valve 12 in the present invention is not particularly limited, and those skilled in the art can flexibly select the structure or the forming mode according to the actual situation, for example, the explosion-proof valve 12 can be formed with a groove on the cover plate body 10 and an indentation on the surface of the groove, and can also be formed with a through hole on the cover plate body 10 and welded with the outer edge of the explosion-proof valve plate and the inner surface of the through hole.
In summary, compared with the prior art, the battery cover plate has the following beneficial effects: 1. the raised reinforcing ribs are arranged on the periphery of the explosion-proof valve, so that the periphery of the explosion-proof valve of the cover plate can be effectively protected, the local strength is enhanced, the problems that the peripheral cover plate of the explosion-proof valve is deformed under the action of external force due to the groove or the opening of the explosion-proof valve and the opening pressure of the explosion-proof valve is further influenced are solved, the stability of the explosion-proof valve and the cover plate is improved, and the safety performance of a battery is improved; 2. can form micro-nano hole on the peripheral apron surface of explosion-proof valve, make at least some embedding of strengthening rib realize in this micro-nano hole with the combination of apron, can increase the area of contact of strengthening rib and apron on the one hand, improve the bonding strength of the two, on the other hand, can also form the strengthening rib through injection moulding's mode, the strengthening rib can be the plastics material this moment, plastics material light in weight can be when not obviously increasing apron weight, improve the intensity of explosion-proof valve position on the apron.
In another aspect of the present invention, the utility model provides a battery. According to the utility model discloses an embodiment, this battery includes the battery apron described in the preceding. The battery has all the features and effects of the battery cover plate, which are not described in detail herein. Generally speaking, compared with the prior art, the anti-explosion valve of the battery has the advantages of good stability, strong structural reliability and better safety performance. It should be noted that the battery may include one or two battery cover plates, and when two battery cover plates are included, at least one of the two battery cover plates adopts the aforementioned battery cover plate. In addition, it should be noted that the type of the battery is not particularly limited, and those skilled in the art may flexibly select the battery according to actual needs, for example, the battery may be an individual electric core, or may be a battery module or a battery pack, etc
In yet another aspect of the present invention, the utility model provides an energy storage device. According to the utility model discloses an embodiment, energy storage equipment includes the preceding battery. This energy storage equipment has the whole characteristics and the effect of battery apron previously mentioned, and the no longer repeated description herein. Generally speaking, compared with the prior art, the energy storage device is high in safety, strong in reliability and high in customer satisfaction. It should be noted that the specific type of the energy storage device is not particularly limited, and those skilled in the art can flexibly select the type according to actual needs, for example, the energy storage device may be a battery pack, or may be a vehicle including the battery module or the battery pack.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. A battery cover plate, comprising: the cover plate body is provided with an explosion-proof valve opening and an explosion-proof valve, the explosion-proof valve is arranged in the explosion-proof valve opening, the outer edge of the explosion-proof valve is connected with the inner edge of the explosion-proof valve opening, the cover plate body is provided with a plurality of convex reinforcing ribs along the circumferential direction of the explosion-proof valve, and at least one part of the reinforcing ribs is embedded in the cover plate body.
2. The battery cover plate according to claim 1, wherein a plurality of micro-nano holes are formed in a region of the cover plate body opposite to the reinforcing ribs, and at least a part of the reinforcing ribs are embedded in the micro-nano holes.
3. The battery cover plate of claim 1, wherein the reinforcing ribs are made of plastic.
4. The battery cover plate according to claim 1, wherein the reinforcing ribs are provided on a side of the cover plate body away from the pole piece or a side of the cover plate body toward the pole piece.
5. The battery cover plate according to any one of claims 1 to 4, wherein the protruding height of the reinforcing ribs is 0.5 to 3mm.
6. The battery cover plate according to any one of claims 1 to 4, wherein the distance between the inner surface of the reinforcing rib and the opening of the explosion-proof valve is not less than 1mm; and/or the distance between the inner surface of the reinforcing rib and the opening of the explosion-proof valve is not more than 3mm.
7. The battery cover plate according to any one of claims 1 to 4, wherein the ratio of the height of the reinforcing ribs to the width of the reinforcing ribs is 0.5 to 2.
8. The battery cover plate according to any one of claims 1 to 4, wherein the surface of the explosion-proof valve is provided with an explosion-proof valve protective film.
9. A battery comprising the battery cover plate according to any one of claims 1 to 8.
10. An energy storage device comprising the battery of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221651616.1U CN217655971U (en) | 2022-06-28 | 2022-06-28 | Battery cover plate, battery and energy storage equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221651616.1U CN217655971U (en) | 2022-06-28 | 2022-06-28 | Battery cover plate, battery and energy storage equipment |
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| Publication Number | Publication Date |
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| CN217655971U true CN217655971U (en) | 2022-10-25 |
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| CN202221651616.1U Active CN217655971U (en) | 2022-06-28 | 2022-06-28 | Battery cover plate, battery and energy storage equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115588805A (en) * | 2022-11-04 | 2023-01-10 | 厦门海辰储能科技股份有限公司 | Lower plastic of battery, top cap subassembly and battery of battery |
| CN116742225A (en) * | 2023-08-16 | 2023-09-12 | 深圳海辰储能控制技术有限公司 | End cover assembly, energy storage device and electric equipment |
| CN116759760A (en) * | 2023-08-16 | 2023-09-15 | 深圳海辰储能控制技术有限公司 | End cover assembly, energy storage device and energy storage system |
| WO2024098202A1 (en) * | 2022-11-07 | 2024-05-16 | 宁德时代新能源科技股份有限公司 | End cover assembly, battery cell, battery, and electric device |
-
2022
- 2022-06-28 CN CN202221651616.1U patent/CN217655971U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115588805A (en) * | 2022-11-04 | 2023-01-10 | 厦门海辰储能科技股份有限公司 | Lower plastic of battery, top cap subassembly and battery of battery |
| WO2024098202A1 (en) * | 2022-11-07 | 2024-05-16 | 宁德时代新能源科技股份有限公司 | End cover assembly, battery cell, battery, and electric device |
| CN116742225A (en) * | 2023-08-16 | 2023-09-12 | 深圳海辰储能控制技术有限公司 | End cover assembly, energy storage device and electric equipment |
| CN116759760A (en) * | 2023-08-16 | 2023-09-15 | 深圳海辰储能控制技术有限公司 | End cover assembly, energy storage device and energy storage system |
| CN116759760B (en) * | 2023-08-16 | 2023-10-13 | 深圳海辰储能控制技术有限公司 | End cover assembly, energy storage device and energy storage system |
| CN116742225B (en) * | 2023-08-16 | 2023-10-13 | 深圳海辰储能控制技术有限公司 | End cover assembly, energy storage device and electric equipment |
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