CN215816213U - A top cap subassembly and battery for battery - Google Patents

A top cap subassembly and battery for battery Download PDF

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Publication number
CN215816213U
CN215816213U CN202122302165.2U CN202122302165U CN215816213U CN 215816213 U CN215816213 U CN 215816213U CN 202122302165 U CN202122302165 U CN 202122302165U CN 215816213 U CN215816213 U CN 215816213U
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China
Prior art keywords
cover plate
battery
bar
limiting
thickness direction
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CN202122302165.2U
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Chinese (zh)
Inventor
徐卫东
张男
易梓琦
吴祖钰
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Xiamen Hithium Energy Storage Technology Co Ltd
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Xiamen Haichen New Energy Technology Co Ltd
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Priority to CN202122302165.2U priority Critical patent/CN215816213U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Sealing Battery Cases Or Jackets (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Secondary Cells (AREA)

Abstract

The utility model discloses a top cover component for a battery and the battery, wherein the top cover component comprises: the cover plate comprises a cover plate body and a flow collecting bar, wherein at least one stopping part and at least one first limiting part are arranged on the surface of one side of the cover plate body. The collecting bar is arranged on one side of the cover plate, the surface of the collecting bar is in contact with the abutting part, the collecting bar is positioned on the radial inner side of the first limiting part, the first limiting part is positioned on the outer peripheral side of at least one part of the collecting bar, and the width of the first limiting part in the thickness direction of the cover plate is larger than that of the abutting part in the thickness direction of the cover plate. From this, the space that can form the installation collector bar between first spacing portion and the portion of stopping to support, the collector bar of being convenient for is installed with the apron, when improving the stability of the two installation, can reduce the apron in the ascending size of thickness direction to do benefit to the space that holds the book core in improving the battery, improve the capacity of battery, so that the collector bar can laminate with rolling up the core better, increase the collector bar and install the stability in battery inside.

Description

A top cap subassembly and battery for battery
Technical Field
The utility model relates to the technical field of batteries, in particular to a top cover assembly for a battery and the battery.
Background
With the development of society, the environmental pollution is aggravated and the traditional energy is exhausted day by day, so people have stronger and stronger awareness on environmental protection. The battery becomes the first choice of green energy with the advantages of high energy density, high voltage, low discharge rate, long cycle life and the like, so the battery is widely applied to portable equipment such as Bluetooth earphones, mobile phones, digital computers, tablet computers and the like, and large-scale equipment such as electric vehicles, energy storage power stations and the like.
In the related art, the battery may include a case having at least one end open, and a cap assembly may be provided at the open end of the case to form a seal with the battery case. The top cap subassembly can be including the apron, when the apron is close to one side of mass flow row and the installation of mass flow row, the apron is easy to exist the interference to the mass flow row, influence the installation of mass flow row, and the mass flow row the space of the apron that occupies when with the apron adaptation is too big, influence the casing installation of top cap subassembly and battery, be unfavorable for the increase of the inside electric capacity of battery case, the stability of being connected between apron and the utmost point post is lower, reduce the reliability of top cap subassembly, lead to the quality and the structural strength decline of the battery that has this top cap subassembly, influence the life of battery.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art. To this end, an object of the present invention is to provide a cap assembly for a battery and a battery.
A cap assembly for a battery according to an embodiment of a first aspect of the present invention includes: the flow collecting device comprises a cover plate and a flow collecting bar, wherein at least one stopping part and at least one first limiting part are arranged on the surface of one side of the cover plate. The current collecting bar is arranged on one side of the cover plate, the surface of the current collecting bar is in contact with the abutting portion, the current collecting bar is located on the radial inner side of the first limiting portion, the first limiting portion is located on the outer peripheral side of at least one portion of the current collecting bar, and the width of the first limiting portion in the thickness direction of the cover plate is larger than the width of the abutting portion in the thickness direction of the cover plate.
From this, first spacing portion is greater than the width of stopping portion in apron thickness direction in the thickness direction of the apron, can form the space of installation manifold between first spacing portion and the stopping portion, be convenient for manifold and apron installation, when improving the stability of the two installation, can reduce the size of apron in thickness direction, in order to do benefit to the space that holds the book core in improving the battery, improve the capacity of battery, in order to make the manifold can better laminate with rolling up the core, increase the stability that the manifold was installed in battery inside.
In some embodiments, the first position-limiting portion is disposed at an edge of the cover plate, and the stopping portion is located radially inward of the first position-limiting portion.
In some embodiments, the first stopper portion extends in a circumferential direction of the cover plate.
In some embodiments, the stopping portion is a plurality of stopping portions, and the stopping portions are arranged at intervals along the circumferential direction of the cover plate.
In some embodiments, each of the stopping portions extends in an arc shape along the circumferential direction of the cover plate.
In some embodiments, the first stopper portion is provided at a peripheral side of one end of the current collecting header, and the cap assembly for a battery further includes: the second limiting part is arranged on the surface of one side of the cover plate and is positioned on the periphery of at least the other end of the current collecting bar.
In some embodiments, the width of the second position-limiting portion in the thickness direction of the cover plate is smaller than the width of the abutting portion in the thickness direction of the cover plate.
In some embodiments, in a radial direction of the cover plate, the abutting portion is located between the first limiting portion and the second limiting portion.
In some embodiments, a distance between the other side surface of the cover plate and the free end of the first position-limiting portion is D1Said D is1Satisfies the following conditions: d is not less than 4mm1≤10mm,
The thickness of the collecting bar is D2Said D is2Satisfies the following conditions: d is not more than 0.1mm2≤0.6mm。
A battery according to an embodiment of the second aspect of the utility model includes a cap assembly for a battery according to any of the embodiments described above.
Additional aspects and advantages of the utility model 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 utility model.
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 view of a cap assembly according to one embodiment of the present invention.
Fig. 2 is a schematic view of a cap assembly according to another embodiment of the present invention.
Fig. 3 is a schematic view of a cover plate according to an embodiment of the present invention.
Fig. 4 is a schematic cross-sectional view of the cover plate, the flange, the second position-limiting portion, the stopping portion and the first position-limiting portion according to the embodiment of the utility model.
Fig. 5 is a front view of a header in accordance with an embodiment of the present invention when unfolded.
Fig. 6 is an enlarged view of the region P in fig. 5.
Fig. 7 is a perspective view of a folded header according to an embodiment of the present invention.
Reference numerals:
a cap assembly 100;
a cover plate 10; a stopping part 11; a first stopper portion 12; a mounting notch 121; a second stopper 13; a liquid injection hole 14; air holes 15; a flange 16;
a header 20; the post connecting portion 21; a tab connecting portion 22;
the pole 30.
Detailed Description
Embodiments of the present invention are described in detail below, the embodiments described with reference to the accompanying drawings are exemplary, and a cap assembly 100 for a battery and a battery according to embodiments of the present invention are described below with reference to fig. 1 to 7, the cap assembly 100 including: a cover plate 10 and a header 20. The cap assembly 100 will be described as applied to a battery, but it is not intended to be limited thereto.
Specifically, as shown in fig. 1 to 3, at least one stopping portion 11 and at least one first position-limiting portion 12 are disposed on one side surface of the cover plate 10. The collector bar 20 is arranged on one side of the cover plate 10, the surface of the collector bar 20 is in contact with the stop part 11, the collector bar 20 is positioned on the radial inner side of the first limit part 12, the first limit part 12 is positioned on the outer periphery side of at least one part of the collector bar 20, and the width of the first limit part 12 in the thickness direction of the cover plate 10 is larger than the width of the stop part 11 in the thickness direction of the cover plate 10. (for example, the width in the thickness direction refers to the dimension in the direction of lamination of the cap plate 10 and the header 20)
The battery may include a cap assembly 100 having an open mouth at one end, a can (not shown) mounted inside the can, the cap assembly 100 including a cap plate 10, for example, the cap plate 10 may be a lower plastic, and a winding core (not shown) forming a seal to the can at the open mouth. The width of the abutting portion 11 in the thickness direction of the cover plate 10 is smaller than the width of the first limiting portion 12 in the thickness direction of the cover plate 10, so that the abutting portion 11 and the first limiting portion 12 of the cover plate define a space for installing the current collecting bar in the thickness direction of the cover plate 10. For example, the cover plate 10 may be a lower plastic.
For example, the battery may include a winding core (not shown), the current collecting bar 20 may be disposed between the winding core and the cap plate 10, and at least a portion of the current collecting bar 20 may be mounted on the cap plate 10 through the first limiting portion 12, under the action of the winding core and the stopping portion 11, the current collecting bar 20 may be stably received in the battery, and the stopping portion 11 may function to support the current collecting bar 20. During the assembly of the header assembly 100, the assembly force acts to press the header 20, and the header 20 is prevented from being deformed by the pressing by the provision of the stopper 11.
Therefore, the width of the first limiting portion 12 in the thickness direction of the cover plate 10 is greater than the width of the abutting portion 11 in the thickness direction of the cover plate 10, a space for installing the current collecting bar 20 can be formed between the first limiting portion 12 and the abutting portion 11, installation of the current collecting bar 20 and the cover plate 10 is facilitated, the size of the cover plate 10 in the thickness direction can be reduced while the stability of installation of the first limiting portion 12 and the second abutting portion is improved, the space for accommodating a winding core in a battery is improved, the capacity of the battery is improved, the current collecting bar 20 can be better attached to the winding core, and the stability of the current collecting bar 20 in the battery is improved.
In some embodiments, as shown in fig. 2 and 3, the first position-limiting portion 12 may be disposed at an edge of the cover plate 10, and the abutting portion 11 is located at a radial inner side of the first position-limiting portion 12.
The first limiting portion 12 is formed at the edge of the cover plate 10 and may extend a certain distance along the edge of the cover plate 10, and the first limiting portion 12 is formed with an installation notch 121 in the circumferential direction, which may be used to avoid the collector bar 20, so as to facilitate the installation of the collector bar 20 and the cover plate 10. The stopping part 11 is located at the radial inner side of the first limiting part 12 and can contact with the mounted current collecting bar 20, that is, when the current collecting bar 20 is mounted on the winding core of the battery, the stopping part 11 stops the current collecting bar 20 at one end of the current collecting bar 20 far from the cover plate 10 at one side of the current collecting bar 20 close to the cover plate 10.
Therefore, the first limiting part 12 is arranged at the edge of the cover plate 10, and the abutting part 11 is arranged on the radial inner side of the first limiting part 12, so that the cover plate 10 can be facilitated to form the space for accommodating the current collecting bar 20, the cover plate 10 can be conveniently sealed with a shell of a battery when being matched with the shell, the capacity of resisting external stress deformation of the cover plate 10 is increased, the installation guidance of the cover plate 10 is increased, the installation stability of the current collecting bar 20 is improved, and the connection between the current collecting bar 20 and the cover plate 10 and between the current collecting bar 20 and a winding core is tighter.
Alternatively, as shown in fig. 3, the abutting portion 11 is plural, and the plural abutting portions 11 are arranged at intervals along the circumferential direction of the cover plate 10. The cover plate 10 between two adjacent abutting parts 11 may be formed with air holes 15 or liquid injection preventing holes 14, and the abutting parts 11 disposed at intervals may be used to escape other structures.
From this, a plurality of supporting parts set up at the interval in the circumference of apron 10, can effectively avoid dodging to the bleeder vent 15 that forms on the apron 10 or annotate liquid hole 14, increase the convenience of mass flow row 20 and apron 10 installation, avoid stopping the influence of portion 11 to the installation of mass flow row 20, and when stopping to support mass flow row 20 and keeping away from apron 10 one end, increase the atress homogeneity that mass flow row 20 kept away from apron 10 one end, so that the laminating degree of mass flow row 20 and utmost point ear is higher, the stability of connecting is higher.
In some embodiments, as shown in fig. 3, each of the abutting portions 11 extends in an arc shape along the circumferential direction of the cover plate 10. The arc-shaped extension direction is the same as the circumferential direction of the cover plate 10, so that the formed stopping part 11 can be contacted and stopped with the collector bar 20 to the maximum extent, the mounting stability of the collector bar 20 is improved, the connection tightness among the cover plate 10, the collector bar 20 and the winding core is better, the stability of the movement of electrons between the pole 30 and the winding core is ensured, and the service life of the battery can be prolonged. In addition, the stopping portion 11 may be linear or wavy.
In some examples, as shown in fig. 2, the first stopper part 12 may be provided at an outer circumferential side of one end of the collector bar 20, and the cap assembly 100 for a battery may further include a second stopper part 13, the second stopper part 13 being provided on one side surface of the cap plate 10, and the second stopper part 13 being located at an outer circumferential side of at least the other end of the collector bar 20.
As shown in fig. 2 and 7, the current collecting bar 20 may include a pole connecting portion 21 connected to the pole 30 on the cover plate 10 and a pole connecting portion 22 connected to the pole on the winding core, the first limiting portion 12 is disposed on an outer peripheral side of the pole connecting portion 22, the second limiting portion 13 is disposed on an outer peripheral side of the pole connecting portion 21, and specifically, the pole connecting portion 22 may be at least partially located between the first limiting portion 12 and the second limiting portion 13. The tab connecting portion 22 can be bent towards one end of the post connecting portion 21, when the tab connecting portion 22 is connected with a tab, the first limiting portion 12 is matched with the casing of the battery in the radial direction of the cover plate 10 and the outer side of the tab connecting portion 22, the second limiting portion 13 can be stopped to abut against the tab connecting portion 22, and the second limiting portion 13 can contact one end of the post connecting portion 21.
Therefore, the first limiting part 12 is located on the outer side of the second limiting part 13, the first limiting part 12 is located on the outermost side of the current collecting bar 20, the second limiting part 13 is located on the outer side of one end of the current collecting bar 20, the second limiting part 13 is in contact with the current collecting bar 20 to limit the current collecting bar 20, the installation speed and the installation precision of the current collecting bar 20 are increased, the installation accuracy and the stability of the current collecting bar 20 are improved, and the current collecting bar 20 is limited in the width direction.
In some embodiments, as shown in the figure, the width of the second position-limiting portion 13 in the thickness direction of the cover plate 10 is smaller than the width of the abutting portion 11 in the thickness direction of the cover plate 10. This is because the collector bar 20 needs to be bent inside the battery when being mounted on the cap plate 10 and the winding core, and compared with the unfolded collector bar 20, the space occupied by the collector bar 20 in the thickness direction of the cap plate 10 inside the battery is increased, and the width of the second stopper 13 in the thickness direction of the cap plate 10 is set smaller than the width of the stopper 11 in the thickness direction of the cap plate 10, so that the mounting space required for mounting the collector bar 20 inside the cap plate 10 can be increased.
Therefore, the width of the second limiting part 13 in the thickness direction of the cover plate 10 is smaller than the width of the stopping part 11 in the thickness direction of the cover plate 10, so that the installation space for accommodating the current collecting bar 20 in the cover plate 10 can be increased, the width of the battery in the thickness direction of the cover plate is reduced, the miniaturization and integration of the battery are facilitated, and the compactness of the internal structure of the battery can be increased.
In some examples, as shown in fig. 3, in the radial direction of the cover plate 10, the abutting portion 11 is located between the first stopper portion 12 and the second stopper portion 13. The first limiting portion 12, the abutting portion 11 and the second limiting portion 13 are sequentially arranged away from the center of the cover plate 10 in the radial direction of the cover plate 10, one end of the first limiting portion 12, one end of the abutting portion 11 and one end of the second limiting portion 13 are connected with the cover plate 10, and the other ends of the first limiting portion 12, the abutting portion 11 and the second limiting portion 13 extend in the direction perpendicular to the cover plate 10 at different distances.
Therefore, in the radial direction of the cover plate 10, the abutting part 11 is located between the first limiting part 12 and the second limiting part 13, so that the cover plate 10 can be ensured to form a space for accommodating the collector bar 20, on one hand, the installation of the collector bar 20 and the cover plate 10 is facilitated, on the other hand, the first limiting part 12, the abutting part 11 and the second limiting part 13 with different heights can form the limiting on the collector bar 20 in the radial direction of the cover plate 10 and can realize the abutting on the collector bar 20 in the thickness direction of the cover plate 10, the installation stability and reliability of the collector bar 20 are increased, and the quality of a battery is improved.
In some embodiments, as shown in fig. 4 to 6, a distance D is provided between the other side surface of the cover plate 10 and the free end of the first position-limiting portion 121,D1Satisfies the following conditions: d is not less than 4mm1Less than or equal to 10mm, and the thickness of the collector bar 20 is D2,D2Satisfies the following conditions: d2 is not less than 0.1mm and not more than 0.6 mm. Here, the free end of the first stopper portion 12 refers to an end of the first stopper portion 12 on a side away from the cap plate 10, the other side of the cap plate 10 is a surface of the cap plate 10 on a side away from the header 20, and the thickness of the header 20 refers to a maximum thickness of the body when the header 20 is unfolded.
Therefore, the distance between the other side surface of the cover plate 10 and the free end of the first limiting part 12 and the thickness of the current collector 20 are reasonably set, so that the space formed by the first limiting part 12, the abutting part 11, the second limiting part 11 and the flange 16 can facilitate the installation of the current collector 20, the connection tightness among the pole 30, the current collector 20 and the pole lugs is increased, meanwhile, the structural strength of the cover plate 10 is ensured, the deformation resistance of the cover plate 10 can be furthest improved, and the structural strength of the battery can be improved.
In addition, a through hole penetrating in the thickness direction of the cover plate 10 is formed in the cover plate 10, an electrode post 30 is inserted into the through hole, a flange 16 is provided at the edge of one end of the through hole close to the collector bar 20, and the height of the flange 16 in the thickness direction of the cover plate 10 is smaller than the width of the second stopper 13 in the thickness direction of the cover plate 10.
From this, through set up flange 16 in through-hole department, flange 16 can contact with utmost point post 30 in order to increase utmost point post 30's area of contact, can protect better and support utmost point post 30, prevents that the condition of deformation and slope that utmost point post 30 received the uneven lead to of external force or the atress in the installation from appearing. Meanwhile, the flange 16 has an effect of reinforcing structural strength to the lower plastic, so that the assembly of the pole 30 and the cover plate 10 has higher stability. The dimension of the flange 16 in the thickness direction of the cover plate 10 is smaller than the dimension of the second limiting part 13 in the thickness direction of the cover plate 10, so that the flange 16 is prevented from interfering with the installation of the collector bar 20.
For example, referring to fig. 4 in conjunction with fig. 2, the collecting bar 20 may be folded, the second position-limiting portion 13 may be used to mount at least another end of the collecting bar 20, the at least another end of the collecting bar 20 may be attached to a flange 16 provided on the cover plate 10, the flange 16 may be used to support another end of the collecting bar 20, one end of the collecting bar 20 may be folded, and one end of the folded collecting bar 20 may be supported on the abutting portion 11 and mounted on the cover plate 10 through the first position-limiting portion 12. As shown in fig. 4, the first stopper portion 12 has a dimension L in the thickness direction of the cover plate 101The dimension of the stopper 11 in the thickness direction of the cover plate 10 is L2The dimension of the second stopper 13 in the thickness direction of the cover plate 10 is L3The dimension of the flange 16 in the thickness direction of the lid plate 10 is L4Wherein L is1>L2>L3>L4
A battery according to an embodiment of the second aspect of the present invention includes the cap assembly 100 for a battery according to any one of the above embodiments. For example, the battery may be a secondary battery.
It can be understood that a first limiting portion 12, a stopping portion 11 and a second limiting portion 13 are disposed on one side of the cover plate 10 close to the current collecting bar 20, the first limiting portion 12, the stopping portion 11 and the second limiting portion 13 are sequentially disposed away from the center of the cover plate 10 in the radial direction of the cover plate 10, and the sizes of the first limiting portion 12, the stopping portion 11 and the second limiting portion 13 in the thickness direction of the cover plate 10 are different to form a space for accommodating the current collecting bar 20. The second limiting portions 13 are a plurality of limiting portions which can limit the pole connecting portion 21 at the outer side of the part of one end of the pole connecting portion 21, when the pole connecting portion 22 is connected with a pole, the stopping portion 11 can stop at one side of the pole connecting portion 22 far away from the pole, and the first limiting portion 12 forms a mounting notch 121 in the circumferential direction of the cover plate 10 for avoiding the current collecting bar 20.
From this, the apron 10 is close to one side of mass flow row 20 and is provided with the installation space with mass flow row 20 adaptation to in mass flow row 20 one end is connected with utmost point post 30, and the other end is connected with utmost point ear, the size of effective control installation space, so that the inside compact structure of battery is higher, can promote the inside capacity of battery, increases the charge-discharge ability of battery.
In the description of the present invention, it is to be understood that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the utility model.
In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features. In the description of the present invention, "a plurality" means two or more. In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween. In the description of the utility model, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like 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 utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

Claims (10)

1. A cap assembly for a battery, comprising:
the cover plate is provided with at least one stop part and at least one first limiting part on the surface of one side of the cover plate;
the collecting bar is arranged on one side of the cover plate, the surface of the collecting bar is in contact with the abutting portion, the collecting bar is located on the radial inner side of the first limiting portion, the first limiting portion is located on the outer peripheral side of at least one portion of the collecting bar, and the width of the first limiting portion in the thickness direction of the cover plate is larger than the width of the abutting portion in the thickness direction of the cover plate.
2. The top cap assembly for a battery of claim 1, wherein the first limiting portion is disposed at an edge of the cover plate, and the stopping portion is located radially inward of the first limiting portion.
3. The cap assembly for a battery of claim 2, wherein the first stopper portion extends along a circumferential direction of the cap plate.
4. The top cap assembly for a battery of claim 1, wherein the plurality of stopping portions are provided at intervals along the circumferential direction of the cap plate.
5. The cap assembly for a battery according to claim 4, wherein each of the stopping portions extends in an arc shape along a circumferential direction of the cap plate.
6. The cap assembly for a battery according to claim 1, wherein the first stopper portion is provided at an outer peripheral side of one end of the current collecting header;
the cap assembly for a battery further includes:
the second limiting part is arranged on the surface of one side of the cover plate and is positioned on the periphery of at least the other end of the current collecting bar.
7. The top cap assembly for a battery according to claim 6, wherein a width of the second stopper portion in a thickness direction of the cover plate is smaller than a width of the abutting portion in the thickness direction of the cover plate.
8. The cap assembly for a battery according to claim 6, wherein the abutting portion is located between the first stopper portion and the second stopper portion in a radial direction of the cap plate.
9. The cap assembly for a battery according to claim 1, wherein a distance between the other side surface of the cap plate and the free end of the first stopper portion is D1Said D is1Satisfies the following conditions: d is not less than 4mm1≤10mm,
The thickness of the collecting bar is D2Said D is2Satisfies the following conditions: d is not more than 0.1mm2≤0.6mm。
10. A battery comprising the cap assembly for a battery according to any one of claims 1 to 9.
CN202122302165.2U 2021-09-23 2021-09-23 A top cap subassembly and battery for battery Active CN215816213U (en)

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CN202122302165.2U CN215816213U (en) 2021-09-23 2021-09-23 A top cap subassembly and battery for battery

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115548538A (en) * 2022-09-23 2022-12-30 厦门海辰储能科技股份有限公司 End cover assembly, single battery, battery module and electric equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115548538A (en) * 2022-09-23 2022-12-30 厦门海辰储能科技股份有限公司 End cover assembly, single battery, battery module and electric equipment
CN115548538B (en) * 2022-09-23 2023-12-29 厦门海辰储能科技股份有限公司 End cover assembly, battery cell, battery module and electric equipment

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