CN217955990U - Battery core cover plate, battery pack and vehicle - Google Patents
Battery core cover plate, battery pack and vehicle Download PDFInfo
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- CN217955990U CN217955990U CN202221797996.XU CN202221797996U CN217955990U CN 217955990 U CN217955990 U CN 217955990U CN 202221797996 U CN202221797996 U CN 202221797996U CN 217955990 U CN217955990 U CN 217955990U
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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 an electric core cover plate, a battery pack and a vehicle, wherein, the electric core cover plate comprises a first conductive cover plate, a second electrode connecting part and an insulating part, and the first conductive cover plate is provided with a first electrode connecting part on the inner surface; the second electrode connecting part is embedded in the second conductive cover plate, the second electrode connecting part is exposed on the inner surface of the second conductive cover plate, one of a positive electrode lug and a negative electrode lug of the battery cell is electrically connected with the first electrode connecting part, and the other of the positive electrode lug and the negative electrode lug is electrically connected with the second electrode connecting part; the insulating part is isolated between the second electrode connecting part and the second conductive cover plate. The technical proposal of the utility model is that the first electrode connecting part is arranged on the first conductive cover plate, and the non-polar column protrudes out of the cell cover plate, thereby improving the energy density of the battery; meanwhile, a plurality of accessories are not needed, and the structural weight of the battery cell cover plate is reduced, so that the cost for producing the battery cell cover plate is reduced, and the market competitiveness is improved.
Description
Technical Field
The utility model relates to a battery package technical field, in particular to electric core cover plate, battery package and vehicle.
Background
Along with the increasing popularization of new energy automobiles, the requirement on the heart battery pack of the new energy automobiles is higher and higher, the requirement is the most, the most core requirement is that the electric quantity and the energy density of a system are the same, the battery pack generally refers to a combined lithium ion battery pack, a certain specific shape is formed by packaging, packaging and assembling, the technical route of the pack is that a module is formed according to the electric core, the module is packaged to form the pack, but the source still starts from the structure of a single electric core, the structure of the electric core is simplified, and the energy density of the system can be obviously improved; the top cover structure of the power battery in the current market usually adopts a press riveting structure, a clamp spring structure or other structures, although the structure is different, the formed parts are basically the same. Top cap piece, utmost point post, explosion-proof valve, sealing member, insulating plastic spare, electrically conductive accessory etc. all are essential main parts, and because of its special structural problem, the majority contains utmost point post height, has the height of utmost point post on the base plate, has caused the waste of the high capacity of utmost point post, causes monomer electricity core capacity loss.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an electricity core cover plate aims at reducing electricity core cover plate's utmost point post height to improve the energy density of battery.
In order to achieve the above object, the utility model provides an electricity core cover plate, include:
a first conductive cover plate having a first electrode connection part formed on an inner surface thereof;
the second electrode connecting part is embedded in the second conductive cover plate and exposed on the inner surface of the second conductive cover plate, one of a positive electrode tab and a negative electrode tab of the battery cell is electrically connected with the first electrode connecting part, and the other of the positive electrode tab and the negative electrode tab is electrically connected with the second electrode connecting part; and
an insulating part isolated between the second electrode connecting part and the second conductive cap plate.
Optionally, the first electrode connecting portion is a first slot disposed on an inner surface of the first conductive cover plate, and an opening of the first slot is laterally opened.
Optionally, the first slot includes an avoiding groove and a connecting groove located in the avoiding groove, two side groove walls of the connecting groove are formed with limiting grooves for inserting positive lugs of the battery cell, and the connecting groove is used for accommodating the positive lugs of the battery cell.
Optionally, the second electrode connecting portion is a conductive block embedded in the second conductive cover plate.
Optionally, the conductive block is provided with a second slot exposed on the inner surface of the second conductive cover plate, and an opening of the second slot is laterally opened.
Optionally, the electrically conductive apron of second is equipped with and is the scarf joint groove that link up the setting, just the surface of the electrically conductive apron of second be equipped with spacing heavy groove that the scarf joint groove is linked together, the conducting block inlays to be located the scarf joint groove, just the conducting block corresponds spacing heavy groove is equipped with spacing protruding muscle.
Optionally, the second conductive cover plate, the insulating part, and the second electrode connecting part are nano-injection molded into a whole.
Optionally, the first conductive cover plate and the second conductive cover plate are the same cover plate; or the first conductive cover plate and the second conductive cover plate are respectively arranged at two opposite ends of the battery core.
Optionally, a liquid injection hole is formed in the first conductive cover plate and/or the second conductive cover plate.
Optionally, an explosion-proof valve assembly is arranged on the first conductive cover plate and/or the second conductive cover plate.
The utility model discloses still provide a battery package, include as above electric core cover plate.
The utility model discloses still provide a vehicle, include as above the battery package.
The technical scheme of the utility model is that a first conductive cover plate, a second electrode connecting part and an insulating part are adopted, and the first electrode connecting part is formed on the inner surface of the first conductive cover plate; the second electrode connecting part is embedded in the second conductive cover plate, the second electrode connecting part is exposed on the inner surface of the second conductive cover plate, one of a positive tab and a negative tab of the battery cell is electrically connected with the first electrode connecting part, and the other of the positive tab and the negative tab is electrically connected with the second electrode connecting part; the insulating part is isolated between the second electrode connecting part and the second conductive cover plate. Make positive negative pole not switch on, realize the safety of structure, this scheme compares with current technique and need not the indispensable main parts such as top cap piece, utmost point post, explosion-proof valve, sealing member, insulating plastic part, conductive fittings, reduces the weight of structure to reduce the cost of production electricity core apron, improve market competition. The first electrode connecting part is arranged on the first conductive cover plate, and the non-pole column protrudes out of the battery core cover plate, so that the energy density of the battery can be improved, and for a new energy vehicle enterprise pursuing long endurance mileage, the higher the energy density of the battery is, the higher the endurance capacity of a pure electric vehicle is, and the battery with high system storage capacity and energy density is very attractive.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of the connection between the cell cover plate and the cell according to the present invention;
fig. 2 is a schematic structural diagram of the cell cover plate in fig. 1;
fig. 3 isbase:Sub>A cross-sectional view of the cell cover platebase:Sub>A-base:Sub>A of fig. 2;
FIG. 4 is a schematic structural view of a first conductive cover portion of FIG. 1;
FIG. 5 is a schematic view of a second conductive cover portion of FIG. 1;
fig. 6 is a schematic structural diagram of another embodiment of the connection between the cell cover plate and the cell according to the present invention;
fig. 7 is a schematic structural diagram of another view angle in fig. 6.
The reference numbers illustrate:
| reference numerals | Name(s) | Reference numerals | Name(s) |
| 100 | Battery |
70 | Insulating |
| 10 | First |
30 | Conductive block |
| 11 | |
31 | |
| 111 | Dodging |
40 | |
| 112 | Connecting |
50 | |
| 113 | Limiting |
60 | Explosion- |
| 20 | Second |
200 | |
| 21 | |
210 | Positive tab |
| 22 | Limiting |
220 | Negative pole ear |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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 all the directional indicators (such as up, down, left, right, front, back, 8230; \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
Furthermore, the descriptions in the present application related to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or to imply that the number of technical features indicated are implicitly being indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Along with new energy automobile's popularization day by day, the requirement to new energy automobile's heart battery package pack is higher and higher, and this is required most wherein, it is exactly this one of electric quantity and energy density that the most core demand is system storage also, battery pack generally refers to the lithium ion battery group of combination, constitute a certain specific shape through packing, encapsulation and assembly, pack's technical route becomes the constitution module according to electric core, the module wraps and forms the pack, but still should start from the structure of monomer electric core in the source, simplify electric core structure, can show the promotion system energy density.
At present, the core structure-cover plate scheme on the market mainly comprises the following two schemes:
1. riveting type battery cell cover plate
Riveted electric core structure, more electric core factory adopts this kind of structure at present, the cost is lower, but spare part is numerous, the process is also more numerous, most apron factory trade is workshop formula, in this link of interpolation fluororubber sealing washer, because be people's frock, the risk of neglected loading is bigger, and all there is the utmost point post height that reaches nearly 7mm on this kind of riveted formula apron, the size of the electric core direction of height that requires at the host computer factory, most contains utmost point post height, meet the higher condition of requirement to electric core energy density, the waste of utmost point post height capacity has been caused.
2. Integrally injection-moulded cover plate structure or so-called "poleless" cover plate
The formula of integrative injection moulding or nanometer are moulded plastics apron structure adoption of most high-end electric core factories at present, this kind can cause certain rising of cost, but greatly reduced the problem of follow-up electric core production weeping, but this kind of apron still has the planar utmost point post height of protruding apron base plate, or another kind of so-called "no utmost point post" apron also all has the planar utmost point post height of higher than base plate, when increasing structure weight, also lost equal with that section capacity of utmost point post height.
The top cover structure of the power battery in the current market usually adopts a press riveting structure, a clamp spring structure or other structures, although the structure is different, the formed parts are basically the same. Top cap piece, utmost point post, explosion-proof valve, sealing member, insulating plastic spare, electrically conductive accessory etc. all are essential main parts, because of its special structural problem, the cost of production power electricity core apron remains high throughout.
In order to improve and reduce the weight of the structure, improve the energy density of the battery cell and reduce the production cost. The utility model provides an electricity core apron.
Referring to fig. 1 to 7, in an embodiment of the present invention, the cell cover plate 100 includes a first conductive cover plate 10, a second conductive cover plate 20, a second electrode connecting portion, and an insulating portion 70, wherein the first conductive cover plate 10 is formed with a first electrode connecting portion on an inner surface; the second electrode connection part is embedded in the second conductive cover plate 20, and the second electrode connection part is exposed on the inner surface of the second conductive cover plate 20, one of the positive tab 210 and the negative tab 220 of the battery cell 200 is electrically connected to the first electrode connection part, and the other of the positive tab 210 and the negative tab 220 is electrically connected to the second electrode connection part; the insulating part 70 is isolated between the second electrode connecting part and the second conductive cap plate 20.
The first conductive cover plate 10 is formed with a first electrode connection portion on an inner surface, the first electrode connection portion and the first conductive cover plate 10 are located on the same plane, that is, the height of the first electrode connection portion does not exceed the surface of the first conductive cover plate 10, the first electrode connection portion is used for electrically connecting one of the positive tab 210 and the negative tab 220 of the battery cell 200, and the connection manner of the first electrode connection portion and the positive tab 210 or the negative tab 220 may be laser welding, ultrasonic welding or other connection manners.
Referring to fig. 1 to 3, in an embodiment, the first conductive cover plate 10 and the second conductive cover plate 20 are the same cover plate; the second electrode connection part is embedded in the second conductive cover plate 20, and in order to facilitate the electrical connection between the positive tab 210 and the negative tab 220, the second electrode connection part is exposed on the inner surface of the second conductive cover plate 20 so as to allow the electrical connection between the positive tab 210 and the negative tab 220; in order to avoid the short circuit problem caused by the electrical conduction between the positive and negative electrodes, the insulating part 70 is isolated between the second electrode connecting part and the second conductive cover plate 20.
First electrode connecting portion can be connected with anodal ear 210, also can be connected with negative pole ear 220, in this embodiment, first electrode connecting portion is connected with anodal ear 210, first electrically conductive apron 10 lid closes on the casing of electric core 200, the casing generally adopts the aluminum hull, be connected anodal ear 210 with first electrode connecting portion, concretely, open the first slot 11 that has anodal ear 210 on the right side of first electrically conductive apron 10, anodal ear 210 that electric core 200 stretched out, direct plug is in first slot 11, weld as an organic whole with the base plate through laser welding or ultrasonic welding, the benefit of doing so is exactly that the positive pole switches on, let electric core 200's aluminum hull positive electrification, can effectively prevent the corruption of aluminum hull. In order to avoid the problem of short circuit caused by the power connection of the positive electrode and the negative electrode, the insulating part 70 is coated on the second electrode connecting part to realize the insulation between the first electrode connecting part or the second electrode connecting part and the battery core cover plate 100, so that the positive electrode and the negative electrode are not conducted after the battery core cover plate 100 covers the shell of the battery core 200, and the safety of the structure is realized.
Referring to fig. 6 and 7, in another embodiment, the first conductive cover plate 10 and the second conductive cover plate 20 are respectively disposed at two opposite ends of the battery cell 200.
In this embodiment, the above arrangement scheme may be adopted to avoid the problem of short circuit caused by the electrical conduction of the positive electrode and the negative electrode. The second conductive cover plate 20 can be made of an integrally insulating material, and the second electrode connecting portion is made of a conductive material, so that the normal use of the battery cell 200 is ensured, and the problem of short circuit caused by electric conduction of the anode and the cathode is avoided.
Generally, the higher the energy density of the battery, the higher the endurance of the pure electric vehicle, so the battery cell 200 with high system storage capacity and energy density is very attractive for new energy vehicle enterprises pursuing long endurance mileage.
According to the technical scheme of the utility model, the first conductive cover plate 10, the second conductive cover plate 20, the second electrode connecting part and the insulating part 70 are adopted, and the first electrode connecting part is formed on the inner surface of the first conductive cover plate 10; the second electrode connection part is embedded in the second conductive cover plate 20, and the second electrode connection part is exposed on the inner surface of the second conductive cover plate 20, one of the positive tab 210 and the negative tab 220 of the battery cell 200 is electrically connected to the first electrode connection part, and the other of the positive tab 210 and the negative tab 220 is electrically connected to the second electrode connection part; the insulating part 70 is isolated between the second electrode connecting part and the second conductive cap plate 20. Make positive negative pole not switch on, realize the safety of structure, this scheme compares with current technique and need not top cap piece, utmost point post, explosion-proof valve, sealing member, insulating plastic part, the indispensable main accessories such as conductive fittings, reduces the weight of structure, reduces the cost of production electricity core apron 100, improves market competition. The first electrode connecting part is arranged on the first conductive cover plate 10, and the non-pole column protrudes out of the battery core cover plate 100, so that the energy density of the battery can be improved, and for a new energy vehicle enterprise pursuing long endurance mileage as far as possible, the higher the energy density of the battery is, the higher the endurance capacity of a pure electric vehicle is, and the battery with high system storage electric quantity and energy density is very attractive.
In order to improve the energy density of the battery cell 200, the connection of the tabs of the battery cell 200 is facilitated. The first electrode connecting part is a first slot 11 formed in the inner surface of the first conductive cover plate 10,
in another embodiment, the first electrode connecting portion may be embedded in the first conductive cover plate 10.
Referring to fig. 3 to 5, specifically, in this embodiment, the first slot 11 includes an avoiding groove 111 and a connecting groove 112 located in the avoiding groove 111, the avoiding groove 111 and the connecting groove 112 form a step therebetween, two side groove walls of the connecting groove 112 are formed with a limiting groove 113 for inserting the positive tab 210 of the battery cell 200, and the connecting groove 112 is used for welding and fixing the positive tab 210 of the battery cell 200. The connecting groove 112 is used for welding and fixing the positive tab 210 of the battery cell 200. First slot 11 does the sunken formation of the direction of the internal surface of first electrically conductive apron 10 towards the surface makes things convenient for anodal ear 210's connection, first slot 11 is including dodging groove 111 and being located dodge the connecting groove 112 in groove 111, dodge groove 111 with form the step between the connecting groove 112 for connecting groove 112 protrusion dodges groove 111, makes things convenient for inserting of anodal ear 210, operation when simultaneously making things convenient for the welding.
In order to facilitate the welding of the positive tab 210, at least one side wall of the connection groove 112 is provided with a limit projection to pre-fix the positive tab 210 inserted into the connection groove 112 and prevent the positive tab 210 from being separated from the connection groove 112; in one embodiment, the limiting convex part can be a stop part arranged on the side wall by welding, bonding, screw locking and the like, the stop part can be arranged at the top end close to the side wall, and the clamping part can also be arranged at the bottom end close to the side wall; the clamping portion can also be arranged in the middle of the two side walls.
In this embodiment, the limiting protrusion is a limiting groove 113 formed in the middle of two side walls of the connecting groove 112, so that after the positive tab 210 is inserted, the positive tab 210 is conveniently pre-fixed, and structural parts and installation processes are reduced.
The specific structure and relation of the first electrode connection part to the first conductive cover plate 10 are described above, and the structure and connection relation of the second conductive cover plate 20, the insulating part 70 and the second electrode connection part in the case where the first conductive cover plate 10 and the second conductive cover plate 20 are the same cover plate are described below.
The second electrode connecting portion is a conductive block 30 embedded in the second conductive cover plate 20.
In one embodiment, the conductive block 30 may be square, circular, or other shape.
In this embodiment, the conductive block 30 is a stepped conductive block 30, and in order to facilitate connection of the negative tab 220, the conductive block 30 is provided with a second slot 31 exposed on the inner surface of the second conductive cover plate 20, and an opening of the second slot 31 is laterally opened.
In order to facilitate the installation of the conductive block 30 and the second conductive cover plate 20, the second conductive cover plate 20 is provided with an embedding groove 21 which is arranged in a penetrating manner, the outer surface of the second conductive cover plate 20 is provided with a limiting sunk groove 22 communicated with the embedding groove 21, the conductive block 30 is embedded in the embedding groove 21, in order to avoid the disconnection of the battery cell 200 caused by the loosening and the separation of the conductive block 30, the conductive block 30 is provided with a limiting convex rib 40 corresponding to the limiting sunk groove 22, and in an embodiment, the limiting convex rib 40 and the conductive block 30 are integrally arranged. In other embodiments, the limiting rib 40 and the conductive block 30 are separated.
In this embodiment, in order to avoid the electrical conduction between the positive electrode and the negative electrode, the second conductive portion is covered with an insulating portion 70, and the insulating portion 70 is made of plastic. The conductive block is made of plastic materials which are convenient to process and can be obtained by processing, molding or cross-linking, curing and molding, and the plastic materials have good insulativity, and the stepped conductive block 30 is convenient to process and mold; in another embodiment, the insulating portion 70 may be made of a ceramic material or the like. For good integrity, the second conductive cover plate 20, the insulating part 70 and the second electrode connecting part are nano-injection molded into a whole.
Specifically, the insulating part 70 is molded on the second conductive cover plate 20 by means of nano injection molding, the conductive block 30 is provided with a second slot 31 for inserting the negative electrode tab 220, the negative electrode tab 220 is inserted into the second slot 31 as the positive electrode, and finally the tab is welded by laser welding or ultrasonic welding, the periphery of the conductive block 30 is coated with nano injection molded PPS, so that the insulation with the second conductive cover plate 20 is realized, and the positive electrode and the negative electrode are not conducted after power connection. In other embodiments, the insulation 70 may be provided in other manners.
After the production and manufacture of the battery cell 200 are completed, the internal positive and negative electrodes are still in an open circuit state, and at this time, a bridge needs to be provided between the positive and negative electrode materials to allow ions and electrons to freely circulate between the positive and negative electrodes for charging and discharging; that electrolyte serves this function by wetting between the positive and negative electrode materials, allowing ions to flow freely between the positive and negative electrodes through the electrolyte. Meanwhile, in order to ensure the safety of the assembled battery cell 200, the battery cell cover plate 100 is further provided with the explosion-proof valve assembly 60, the explosion-proof valve assembly 60 plays a role in safety protection, when the battery cell 200 is in a relatively threatening condition, an internal short circuit occurs, a large amount of gas is generated, and the explosion-proof valve assembly 60 can be broken to play a role in pressure relief.
The liquid injection hole 50 and the explosion-proof valve assembly 60 provided in the electrical core lid 100 will be described below.
In the solution where the first conductive cover plate 10 and the second conductive cover plate 20 are the same cover plate.
Referring to fig. 1 to 4, in an embodiment, the explosion-proof valve assembly 60 is disposed at an intermediate position of the cell cover plate 100 and between the first electrode connecting portion and the second electrode connecting portion, and the liquid injection hole 50 is disposed at an outer side of the first electrode connecting portion near a free end of the cell cover plate 100.
In another embodiment, the explosion-proof valve assembly 60 is disposed on the side of the cell cover plate 100 close to the first electrode connection portion, and the liquid injection hole 50 is located at the middle position of the cell cover plate 100 or on the side of the cell cover plate 100 close to the second electrode connection portion.
In other embodiments, the explosion-proof valve assembly 60 is disposed on the side of the cell cover plate 100 close to the second electrode connection portion, and the liquid injection hole 50 is located at the middle position of the cell cover plate 100 or on the side of the cell cover plate 100 close to the first electrode connection portion.
In the above solution, the battery cell cover plate 100 is an integral whole, the first electrode connecting portion and the second electrode connecting portion are both located on the battery cell cover plate 100, and the battery cells 200 with the positive electrode tabs 210 and the negative electrode tabs 220 on the same side are correspondingly installed.
In the solution that the first conductive cover plate 10 and the second conductive cover plate 20 are respectively disposed at two opposite ends of the battery cell 200.
Referring to fig. 6 and 7, in an embodiment, the explosion-proof valve assembly 60 is disposed on the first conductive cover plate 10, the explosion-proof valve assembly 60 is located at a middle position of the first conductive cover plate 10, and the liquid injection hole 50 and the first electrode connecting part are located beside the explosion-proof valve assembly 60; or, the first electrode connecting part is located at the middle position of the first conductive cover plate 10, and the liquid injection hole 50 and the explosion-proof valve assembly 60 are located beside the first electrode connecting part. Alternatively, the liquid injection hole 50 is installed on the second conductive cover plate 20 at the middle position of the second conductive cover plate 20 or at both sides of the second conductive cover plate 20.
In another embodiment, the explosion-proof valve assembly 60 is disposed on the second conductive cover plate 20, and the liquid injection hole 50 is disposed on the second conductive cover plate 20 or the first conductive cover plate 10.
The utility model discloses still provide a battery package, this battery package includes electric core cover plate 100, and above-mentioned embodiment is referred to this electric core cover plate 100's specific structure, because this battery package has adopted the whole technical scheme of above-mentioned all embodiments, consequently has the beneficial effect that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here. The energy density of the pole part integrally added through the battery core cover plate 100 is integrated through monomer capacity, a battery pack is formed in a system, when hundreds of battery cores are accumulated, the capacity is accumulated and increased, the overall energy density of the system is improved, and meanwhile, the battery core cover plate 100 reduces the weight of the overall structure.
The utility model discloses still provide a vehicle, including above the battery package.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (11)
1. A cell cover plate, comprising:
a first conductive cover plate having a first electrode connection part formed on an inner surface thereof;
the second electrode connecting part is embedded in the second conductive cover plate and exposed on the inner surface of the second conductive cover plate, one of a positive electrode tab and a negative electrode tab of the battery cell is electrically connected with the first electrode connecting part, and the other of the positive electrode tab and the negative electrode tab is electrically connected with the second electrode connecting part; and
an insulating part isolated between the second electrode connecting part and the second conductive cap plate.
2. The cell cover plate of claim 1, wherein the first electrode connecting portion is a first slot formed in an inner surface of the first conductive cover plate, and an opening of the first slot is laterally opened.
3. The cell cover plate of claim 2, wherein the first insertion groove comprises an avoiding groove and a connection groove located in the avoiding groove, a limit groove for inserting a positive tab of the cell is formed on two side groove walls of the connection groove, and the connection groove is used for accommodating the positive tab of the cell.
4. The cell cover plate of claim 1, wherein the second electrode connecting portion is a conductive block embedded in the second conductive cover plate.
5. The battery cell cover plate of claim 4, wherein the conductive block is provided with a second slot exposed at an inner surface of the second conductive cover plate, and an opening of the second slot is laterally opened.
6. The battery cell cover plate according to claim 5, wherein the second conductive cover plate is provided with an embedding groove disposed therethrough, and the outer surface of the second conductive cover plate is provided with a limiting sunken groove communicated with the embedding groove, the conductive block is embedded in the embedding groove, and the conductive block is provided with a limiting convex rib corresponding to the limiting sunken groove.
7. The cell cover plate of claim 1, wherein the second conductive cover plate, the insulating portion, and the second electrode connecting portion are nano-injection molded as a single piece.
8. The cell cover plate of any of claims 1 to 7, wherein the first and second electrically conductive cover plates are the same cover plate; or the first conductive cover plate and the second conductive cover plate are respectively arranged at two opposite ends of the battery core.
9. The cell cover plate of claim 8, wherein the first conductive cover plate and/or the second conductive cover plate is provided with a liquid injection hole and/or an explosion-proof valve assembly.
10. A battery pack, comprising the cell cover plate according to any one of claims 1 to 9.
11. A vehicle characterized by comprising the battery pack as recited in claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221797996.XU CN217955990U (en) | 2022-07-12 | 2022-07-12 | Battery core cover plate, battery pack and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221797996.XU CN217955990U (en) | 2022-07-12 | 2022-07-12 | Battery core cover plate, battery pack and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217955990U true CN217955990U (en) | 2022-12-02 |
Family
ID=84219810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221797996.XU Active CN217955990U (en) | 2022-07-12 | 2022-07-12 | Battery core cover plate, battery pack and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217955990U (en) |
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2022
- 2022-07-12 CN CN202221797996.XU patent/CN217955990U/en active Active
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