CN217589183U - Battery core cover plate, battery core and battery pack - Google Patents
Battery core cover plate, battery core and battery pack Download PDFInfo
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- CN217589183U CN217589183U CN202221658384.2U CN202221658384U CN217589183U CN 217589183 U CN217589183 U CN 217589183U CN 202221658384 U CN202221658384 U CN 202221658384U CN 217589183 U CN217589183 U CN 217589183U
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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 provides an electricity core apron, electric core and battery package, electricity core apron includes: the cover plate body is used for covering the shell part of the battery cell so as to form an accommodating cavity for accommodating the pole group together with the shell part; the cover plate body is provided with a communication through hole which is used for being communicated with the accommodating cavity, so that at least part of the pole ear of the pole group is arranged in the communication through hole and is connected with the inner wall of the communication through hole; and at least part of the pole is arranged in the communicating through hole so as to plug the communicating through hole and contact with the pole lug. The utility model discloses an electricity core apron among the prior art has been solved to electricity core apron occupies the too big problem of electric core inner space.
Description
Technical Field
The utility model relates to a battery technology field particularly, relates to an electric core apron, electric core and battery package.
Background
In recent years, although electric vehicles have been developed rapidly, they cannot completely replace fuel-powered vehicles, and particularly, in terms of driving mileage, there is a gap from fuel-powered vehicles, so that consumers have "mileage anxiety". The improvement of the endurance mileage of the electric automobile is essentially the improvement of the energy density of the battery, and the improvement of the energy density of the battery is divided into two research directions, namely the improvement of the gram specific capacity of positive and negative electrode raw materials with the capacity exerted in the battery; the other is the improvement of the space utilization rate, namely more positive and negative electrode raw materials which exert capacity are put into the internal space of the battery.
The automobile battery is made the module by single electric core (monocell) series connection, and the module is established ties again and is constituteed the battery package, so mainly develop around single electric core, module and battery package to space utilization's promotion.
At present, the battery cell top cover plate structural member at least comprises the following structures, namely a positive pole riveting column, a negative pole riveting column, a pole block, a sealing insulating member, a liquid injection hole and a connecting sheet.
However, the existing cell top cover plate structural member has the following problems that firstly, the cell top cover plate structural member occupies too large internal space of the cell, and particularly, the existence of the connecting sheet causes lower space utilization rate inside the cell, and the expected effect of the cell on the internal space cannot be met; secondly, the number of parts of the cover plate structural member at the top of the battery cell is too large, so that the processing cost and the raw material cost are high; thirdly, the structure of the cover plate on the top of the battery cell cannot exert capacity, but the weight of the structure is one of the factors influencing the energy density of the battery cell.
SUMMERY OF THE UTILITY MODEL
A primary object of the utility model is to provide an electricity core apron, electric core and battery package to the electricity core apron that solves among the prior art occupies the too big problem of electric core inner space.
In order to achieve the above object, according to an aspect of the present invention, there is provided a cell cover plate, including: the cover plate body is used for covering the shell part of the battery cell so as to form an accommodating cavity for accommodating the pole group together with the shell part; the cover plate body is provided with a communication through hole which is used for being communicated with the accommodating cavity, so that at least part of the pole ear of the pole group is arranged in the communication through hole and is connected with the inner wall of the communication through hole; and at least part of the pole is arranged in the communicating through hole so as to plug the communicating through hole and contact with the pole lug.
Furthermore, the communication through hole is a stepped hole, the stepped hole comprises a first hole section and a second hole section which are sequentially arranged, the first hole section is used for being communicated with the accommodating cavity, a first step is arranged between the first hole section and the second hole section, and the first step is arranged around the first hole section so that the tab can penetrate through the first hole section and then be welded with the first step.
Further, the shoulder hole still includes the third hole section, and the third hole section sets up the one side of keeping away from the first hole section at the second hole section, has the second step between third hole section and the second hole section, and the second step encircles the setting of second hole section, and at least part setting of utmost point post is in the third hole section and is pressed and establish on the second step.
Further, the communication through hole is an injection hole for injecting the electrolyte into the accommodating cavity.
Further, the cover plate body comprises a cover plate main body part and an installation part connected with the cover plate main body part, the cover plate main body part is used for being connected with the shell part, and the cover plate main body part is provided with an installation hole; at least part of the mounting part is arranged in the mounting hole in a penetrating way, and the mounting part is provided with a communication through hole.
Furthermore, the mounting part comprises a mounting main body and a limiting part connected with the mounting main body, and the mounting main body is arranged in the mounting hole in a penetrating manner; the limiting part protrudes out of the side wall of the mounting main body, and the limiting part stops on the cover plate main body part; and/or, the battery cell cover plate further comprises a sealing element, and the sealing element is arranged between the cover plate main body part and the installation part so as to seal the cover plate main body part and the installation part.
Furthermore, the communication through holes and the poles are arranged in pairs, and the battery cell cover plate comprises two pairs of communication through holes and poles which are arranged in pairs; wherein, the two poles comprise a positive pole and a negative pole.
According to the utility model discloses an on the other hand provides an electric core, including outer shell portion, utmost point group and electric core cover plate, electric core cover plate is foretell electric core cover plate, and electric core cover plate lid is established and is holding the chamber in order to form jointly on outer shell portion, and utmost point group sets up and holding the intracavity.
Further, electric core includes two utmost point groups, and each utmost point group all includes first utmost point ear, and the at least part of two first utmost point ears all sets up in the intercommunication through-hole of electric core apron, and the at least part of two first utmost point ears is connected with the inner wall laminating of intercommunication through-hole, and the at least part of two first utmost point ears is relative and looks interval setting to make electrolyte flow into between two first utmost point ears and hold the intracavity.
According to another aspect of the present invention, a battery pack is provided, which includes the above-mentioned battery cell.
The utility model discloses an electricity core apron is including apron body and utmost point post, and the apron body is used for the lid to establish on the outer shell portion of electric core to form the chamber that holds that is used for holding utmost point group with outer shell portion, the apron body has the intercommunication through-hole, and the intercommunication through-hole is used for and holds the chamber and be linked together, so that the at least part setting of utmost point ear of utmost point group is connected in the intercommunication through-hole and with the inner wall of intercommunication through-hole, and the at least part setting of utmost point post is in the intercommunication through-hole, with shutoff intercommunication through-hole and contact with utmost point ear. Through setting up the intercommunication through-hole, the utmost point ear of utmost point group can insert and establish in the intercommunication through-hole to fix on the inner wall of intercommunication through-hole, with the utmost point post direct contact who sets up in the intercommunication through-hole equally, and need not be through setting up middle part with connection utmost point ear and utmost point post on electric core cover plate, thereby reduced the inside space of the shared electric core of electric core cover plate. Therefore, the utility model discloses an electric core apron among the prior art has been solved to the electric core apron occupies the too big problem of electric core inner space.
Drawings
The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the scope of the invention. In the drawings:
fig. 1 shows a schematic view of an embodiment of a cell cover plate according to the present invention;
fig. 2 shows a cross-sectional view of a side view of an embodiment of a cell cover plate according to the present invention;
fig. 3 shows a top view of an embodiment of a cell cover plate according to the present invention;
fig. 4 shows an isometric view of an embodiment of a cell cover plate according to the present invention;
fig. 5 shows a front view of a pole group of a battery cell according to the invention;
fig. 6 shows a side view of a pole set of a battery cell according to the present invention when the tabs are not closed;
fig. 7 shows a side view of a battery cell according to the present invention after folding the tabs of the electrode group;
fig. 8 shows a front view of a pole group of a cell according to the present invention after being covered by a cell cover plate;
fig. 9 shows a cross-sectional view of a side view of a pole group of a battery cell after being covered by a cell cover plate according to the present invention;
fig. 10 shows a front view of a pole group of a cell according to the invention after being placed in a housing part;
figure 11 shows a cross-sectional view of a side view of a pole set of a cell according to the present invention after being placed in a housing portion;
fig. 12 shows a schematic view of the process of connecting the pole with the cover plate body according to the present invention;
figure 13 shows a front view after the installation of a cell according to the present invention is completed;
figure 14 showsbase:Sub>A cross-sectional view of thebase:Sub>A-base:Sub>A cross-section of the cell of figure 13, in accordance with the present invention;
fig. 15 shows an axonometric view after the installation of the battery cell according to the present invention.
Wherein the figures include the following reference numerals:
10. a pole group; 11. a cover plate of the battery core; 12. a tab; 13. a first tab; 14. a second tab; 20. a communication through hole; 21. a first bore section; 211. a first step; 22. a second bore section; 221. a second step; 23. a third bore section; 25. a seal member; 26. an explosion-proof valve; 27. a cover plate body; 28. a cover plate main body part; 281. mounting holes; 29. an installation part; 291. mounting the main body; 292. a limiting part; 30. a housing portion; 31. an accommodating chamber; 40. a pole column; 41. a positive post; 42. and a negative pole.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The utility model provides an electric core cover plate please refer to fig. 1 to fig. 15, include: a cover plate body 27, which is used for covering the shell part 30 of the battery cell to form a containing cavity 31 for containing the pole group 10 together with the shell part 30; the cover plate body 27 is provided with a communication through hole 20, and the communication through hole 20 is used for being communicated with the accommodating cavity 31, so that at least part of the pole ear 12 of the pole group 10 is arranged in the communication through hole 20 and is connected with the inner wall of the communication through hole 20; and the pole 40, at least part of the pole 40 is arranged in the communication through hole 20 to seal the communication through hole 20 and contact with the tab 12.
The utility model discloses a battery core apron is including apron body 27 and utmost point post 40, apron body 27 is used for the lid to establish on the shell portion 30 of electric core, in order to form the chamber 31 that holds that is used for holding utmost point group 10 with shell portion 30, apron body 27 has intercommunication through-hole 20, intercommunication through-hole 20 is used for and holds chamber 31 and be linked together, so that the at least part setting of utmost point ear 12 of utmost point group 10 is connected in intercommunication through-hole 20 and with the inner wall of intercommunication through-hole 20, the at least part setting of utmost point post 40 is in intercommunication through-hole 20, in order shutoff intercommunication through-hole 20 and contact with utmost point ear 12. Through setting up intercommunication through-hole 20, utmost point ear 12 of utmost point group 10 can insert and establish in intercommunication through-hole 20 to fix on the inner wall of intercommunication through-hole 20, with the utmost point post 40 direct contact who sets up in intercommunication through-hole 20 equally, and need not be through setting up middle spare part on the electric core apron in order to connect utmost point ear 12 and utmost point post 40, thereby reduced the inside space of the shared electric core of electric core apron. Therefore, the utility model discloses an electric core apron among the prior art has been solved to electric core apron occupies the too big problem of electric core inner space.
In this embodiment, the communication through hole 20 is a stepped hole, the stepped hole includes a first hole section 21 and a second hole section 22 which are sequentially arranged, the first hole section 21 is used for communicating with the accommodating cavity 31, a first step 211 is arranged between the first hole section 21 and the second hole section 22, and the first step 211 is arranged around the first hole section 21, so that the tab 12 is welded to the first step 211 after passing through the first hole section 21.
During the concrete implementation, the setting up of first hole section 21 makes utmost point ear 12 have the space of wearing to establish, and through first hole section 21 back, utmost point ear 12 and first step 211 welded connection, utmost point ear 12 can be fixed in intercommunication through-hole 20, and the setting up of second hole section 22 makes utmost point ear 12 after with first step 211 welded connection, can hold in second hole section 22, has reduced the inside space of the shared electric core after utmost point ear 12 connects. And, the tab 12 extends to the first step 211 after passing through the first hole section 21, and is welded to the first step 211 to facilitate the welding operation.
Specifically, the first hole section 21 and the second hole section 22 are arranged in order from the bottom to the top in fig. 2.
In this embodiment, the stepped hole further includes a third hole section 23, the third hole section 23 is disposed on a side of the second hole section 22 away from the first hole section 21, a second step 221 is disposed between the third hole section 23 and the second hole section 22, the second step 221 is disposed around the second hole section 22, and at least a portion of the pole 40 is disposed in the third hole section 23 and pressed on the second step 221.
In specific implementation, the second step 221 is configured to allow the terminal post 40 to be disposed in the third hole section 23 after being pressed on the second step 221, and since the third hole section 23 is communicated with the second hole section 22, the tab 12 received in the second hole section 22 can be in contact with and conducted through the terminal post 40 in the third hole section 23.
Specifically, the bore diameters of the first, second and third bore sections 21, 22 and 23 are sequentially increased such that the first and second bore sections 21 and 22 have a first step 211 therebetween and the second and third bore sections 22 and 23 have a second step 221 therebetween.
Specifically, the communication through hole 20 is a square stepped hole, and the pole 40 is also a square block, so that the square pole 40 can be arranged on the second step 221 and completely block the third hole section 23 by welding connection.
In the present embodiment, the communication through-hole 20 is a pour hole for pouring the electrolyte into the housing chamber 31.
In specific implementation, the through hole 20 is a liquid injection hole, so that the cell cover plate does not need to be provided with a special liquid injection hole, thereby reducing the processing cost of the cell cover plate.
It should be noted that, the electrolyte is required to be injected into the accommodating cavity 31 before the post 40 is pressed on the second step 221, and when the post 40 is pressed on the second step 221, the communication through hole 20 is in a closed state, and the electrolyte cannot be injected into the accommodating cavity 31 through the communication through hole 20.
In the present embodiment, the cover plate body 27 includes a cover plate main body portion 28 and a mounting portion 29 connected to the cover plate main body portion 28, the cover plate main body portion 28 is used for connecting to the housing portion 30, and the cover plate main body portion 28 is provided with a mounting hole 281; at least a portion of the mounting portion 29 is pierced in the mounting hole 281, and the mounting portion 29 has a communication through hole 20.
In specific implementation, the installation hole 281 is configured to provide a through space for the installation portion 29, and after the installation portion 29 is inserted into the installation hole 281 of the cover plate main body 28, a stepped communication through hole 20 is provided, so that the tab 12 can be inserted into and connected to the communication through hole 20, and finally connected to the post 40.
In the present embodiment, the mounting portion 29 includes a mounting body 291 and a limiting portion 292 connected to the mounting body 291, the mounting body is inserted into the mounting hole 281; the limiting part 292 is arranged by protruding out of the side wall of the mounting body 291, and the limiting part 292 stops on the cover plate main body 28; and/or the cell cover plate 11 further comprises a sealing member 25, and the sealing member 25 is arranged between the cover plate main body part 28 and the mounting part 29 to seal between the cover plate main body part 28 and the mounting part 29.
In specific implementation, the arrangement of the sealing element 25 ensures that in the working state of the pole group 10, foreign matters cannot enter the accommodating cavity 31 through the gap between the cover plate main body part 28 and the mounting part 29 to affect the work of the pole group 10, so that the sealing effect of the cell cover plate 11 is greatly improved; the stopper 292 prevents the mounting body 291 from falling out of the mounting hole 281. Moreover, the number of parts of the cell cover plate 11 is reduced by the installation part 29, the processing cost and the raw material cost are reduced, and the installation structure with many parts and heavy weight is changed into the installation part 29 with the communication through hole 20, so that the whole weight of the cell cover plate 11 is reduced, and the problem that the cell weight energy density is influenced by the heavy weight of the cell cover plate 11 is solved.
Specifically, the seal 25 is a ring-shaped structure that is fitted to the shape of the outer surface of the mounting portion 29.
In the present embodiment, the communication through holes 20 and the terminals 40 are arranged in pairs, and the cell cover plate 11 includes two pairs of communication through holes 20 and terminals 40 arranged in pairs; the two poles 40 include a positive pole 41 and a negative pole 42.
In a specific implementation, since the communication through holes 20 and the poles 40 are arranged in pairs, the positive pole 41 and the negative pole 42 may be respectively arranged in the two communication through holes 20 and connected to the tabs 12 of the pole group 10.
Specifically, the cell cover plate 11 further includes an explosion-proof valve 26 disposed at a central position of a connecting line of the two communication through holes 20, and configured to prevent explosion of the pole group 10.
The utility model also provides an electric core, please refer to fig. 5 to fig. 15, including outer shell portion 30, utmost point group 10 and electric core cover plate 11, electric core cover plate 11 is electric core cover plate 11 in the above-mentioned embodiment, and electric core cover plate 11 lid is established on outer shell portion 30 and is holding chamber 31 with common formation, and utmost point group 10 sets up and is holding in the chamber 31.
In specific implementation, the electrode group 10 is disposed in the accommodating cavity 31, and the accommodating cavity 31 is sealed by the core cover plate 11, so that a cell structure without an internal space occupied by the core cover plate 11 is finally formed.
In this embodiment, the battery cell includes two electrode groups 10, each electrode group 10 includes a first tab 13, at least a portion of the two first tabs 13 is disposed in the communication through hole 20 of the cell cover plate 11, at least a portion of the two first tabs 13 is attached to the inner wall of the communication through hole 20, at least a portion of the two first tabs 13 is disposed opposite to each other and at intervals, so that the electrolyte flows into the accommodation cavity 31 from between the two first tabs 13. It should be noted that the first tab 13 is a positive tab, and is connected to the positive post 41 after the cell is completely assembled.
In specific implementation, each electrode group 10 further includes a second tab 14, at least part of the two second tabs 14 are disposed in the communication through hole 20 of the cell cover plate 11, at least part of the two second tabs 14 is attached to the inner wall of the communication through hole 20, and at least part of the two second tabs 14 are disposed opposite to each other and spaced from each other, so that the electrolyte flows into the accommodating cavity 31 from between the two second tabs 14. It should be noted that the second tab 14 is a negative tab, and is connected to the negative post 42 after the battery cell is completely assembled.
In other embodiments, the battery cell includes three or more electrode groups 10, and the first tab 13 and the second tab 14 of each electrode group 10 are inserted into the corresponding communication through holes 20.
The utility model also provides a battery package, electric core in the embodiment of the aforesaid.
In specific implementation, the installation steps of the battery cell in the application are as follows:
as shown in fig. 5 and 6, the positive and negative electrode sheets are wound to form a electrode group 10; as shown in fig. 7, the tabs 12 of the pole group 10 are folded together and welded; as shown in fig. 8 and 9, the cell cover plate 11 is covered on the top of the pole group 10, and the tab 12 is inserted into the communication through hole 20; as shown in fig. 10 and fig. 11, the electrode assembly 10 is placed in the accommodating cavity 31 of the casing part 30, the casing part 30 is welded to the cell cover plate 11, and finally the tab 12 is welded to the communication through hole 20; as shown in fig. 12 to 15, the terminal post 40 is fitted into the communication through hole 20, and the terminal post 40 and the communication through hole 20 are welded and sealed to form a final finished battery cell.
From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:
the utility model discloses an electricity core cover plate is including apron body 27 and utmost point post 40, apron body 27 is used for the lid to establish on the outer shell portion 30 of electric core, in order to form the chamber 31 that holds that is used for holding utmost point group 10 with outer shell portion 30, apron body 27 has intercommunication through-hole 20, intercommunication through-hole 20 is used for and holds chamber 31 and be linked together, so that the at least part setting of utmost point ear 12 of utmost point group 10 is connected in intercommunication through-hole 20 and with the inner wall of intercommunication through-hole 20, the at least part setting of utmost point post 40 is in intercommunication through-hole 20, in order to shutoff intercommunication through-hole 20 and contact with utmost point ear 12. Through setting up intercommunication through-hole 20, utmost point ear 12 of utmost point group 10 can insert and establish in intercommunication through-hole 20 to fix on the inner wall of intercommunication through-hole 20, with the utmost point post 40 direct contact who sets up in intercommunication through-hole 20 equally, and need not be through setting up middle spare part on the electric core apron in order to connect utmost point ear 12 and utmost point post 40, thereby reduced the inside space of the shared electric core of electric core apron. Therefore, the utility model discloses an electric core apron among the prior art has been solved to electric core apron occupies the too big problem of electric core inner space.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances such that, for example, embodiments of the application described herein may be implemented in sequences other than those illustrated or described herein. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
For ease of description, spatially relative terms such as "over 8230 \ 8230;,"' over 8230;, \8230; upper surface "," above ", etc. may be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; 'above" may include both orientations "at 8230; \8230;' above 8230; 'at 8230;' below 8230;" above ". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
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. A cell cover plate, comprising:
the cover plate body (27) is used for covering a shell part (30) of the battery cell so as to form an accommodating cavity (31) for accommodating the pole group (10) with the shell part (30); the cover plate body (27) is provided with a communication through hole (20), and the communication through hole (20) is used for being communicated with the accommodating cavity (31) so that at least part of the pole lug (12) of the pole group (10) is arranged in the communication through hole (20) and is connected with the inner wall of the communication through hole (20);
the terminal post (40), at least part of the terminal post (40) is arranged in the communication through hole (20) so as to plug the communication through hole (20) and contact the tab (12).
2. The cell cover plate according to claim 1, wherein the communication through hole (20) is a stepped hole, the stepped hole comprises a first hole section (21) and a second hole section (22) which are sequentially arranged, the first hole section (21) is used for being communicated with the accommodating cavity (31), a first step (211) is arranged between the first hole section (21) and the second hole section (22), and the first step (211) is arranged around the first hole section (21) so that the tab (12) is welded with the first step (211) after passing through the first hole section (21).
3. The cell cover plate of claim 2, wherein the stepped bore further comprises a third bore section (23), the third bore section (23) being arranged on a side of the second bore section (22) remote from the first bore section (21), a second step (221) being arranged between the third bore section (23) and the second bore section (22), the second step (221) being arranged around the second bore section (22), at least part of the pole (40) being arranged in the third bore section (23) and pressed against the second step (221).
4. The cell cover plate according to any one of claims 1 to 3, wherein the communication through-hole (20) is a liquid injection hole for injecting an electrolyte into the accommodation chamber (31).
5. The cell cover plate according to any one of claims 1 to 3, wherein the cover plate body (27) comprises a cover plate main body part (28) and a mounting part (29) connected with the cover plate main body part (28), the cover plate main body part (28) is used for being connected with the outer shell part (30), and a mounting hole (281) is arranged on the cover plate main body part (28); at least part of the mounting portion (29) is pierced in the mounting hole (281), and the mounting portion (29) has the communication through hole (20).
6. The cell cover plate of claim 5,
the mounting part (29) comprises a mounting main body (291) and a limiting part (292) connected with the mounting main body (291), and the mounting main body (291) penetrates through the mounting hole (281); the limiting part (292) protrudes out of the side wall of the mounting body (291), and the limiting part (292) stops on the cover plate main body part (28); and/or the presence of a gas in the gas,
the battery core cover plate (11) further comprises a sealing element (25), and the sealing element (25) is arranged between the cover plate main body part (28) and the installation part (29) to seal between the cover plate main body part (28) and the installation part (29).
7. The cell cover plate according to any of claims 1 to 3, characterized in that the communication through-holes (20) and the poles (40) are arranged in pairs, and the cell cover plate (11) comprises two pairs of the communication through-holes (20) and the poles (40) arranged in pairs; wherein the two poles (40) comprise a positive pole (41) and a negative pole (42).
8. A battery cell comprising a housing part (30), a pole group (10) and a cell cover plate (11), characterized in that the cell cover plate (11) is the cell cover plate (11) of any of claims 1 to 7, the cell cover plate (11) is arranged on the housing part (30) to jointly form a receiving cavity (31), and the pole group (10) is arranged in the receiving cavity (31).
9. The battery cell of claim 8, wherein the battery cell comprises two electrode groups (10), each electrode group (10) comprises a first tab (13), at least part of each first tab (13) is arranged in a communication through hole (20) of the cell cover plate (11), at least part of each first tab (13) is in fit connection with the inner wall of the communication through hole (20), and at least part of each first tab (13) is arranged oppositely and at intervals, so that electrolyte flows into the accommodating cavity (31) from between the two first tabs (13).
10. A battery pack comprising the cell of claim 8 or 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221658384.2U CN217589183U (en) | 2022-06-29 | 2022-06-29 | Battery core cover plate, battery core and battery pack |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221658384.2U CN217589183U (en) | 2022-06-29 | 2022-06-29 | Battery core cover plate, battery core and battery pack |
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| CN217589183U true CN217589183U (en) | 2022-10-14 |
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| CN202221658384.2U Active CN217589183U (en) | 2022-06-29 | 2022-06-29 | Battery core cover plate, battery core and battery pack |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117276821A (en) * | 2023-10-24 | 2023-12-22 | 安徽力翔电池科技有限公司 | Battery top cover with pole with liquid injection hole and forming method thereof |
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2022
- 2022-06-29 CN CN202221658384.2U patent/CN217589183U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117276821A (en) * | 2023-10-24 | 2023-12-22 | 安徽力翔电池科技有限公司 | Battery top cover with pole with liquid injection hole and forming method thereof |
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