CN218827490U - End cover assembly of battery, battery monomer, energy storage device and consumer - Google Patents
End cover assembly of battery, battery monomer, energy storage device and consumer Download PDFInfo
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- CN218827490U CN218827490U CN202222976947.9U CN202222976947U CN218827490U CN 218827490 U CN218827490 U CN 218827490U CN 202222976947 U CN202222976947 U CN 202222976947U CN 218827490 U CN218827490 U CN 218827490U
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- end cap
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- 238000004146 energy storage Methods 0.000 title claims description 19
- 239000000178 monomer Substances 0.000 title abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 238000002347 injection Methods 0.000 claims abstract description 21
- 239000007924 injection Substances 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims description 23
- 239000003792 electrolyte Substances 0.000 claims description 17
- 238000003860 storage Methods 0.000 claims description 9
- 238000004804 winding Methods 0.000 claims description 7
- 238000004080 punching Methods 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000012212 insulator Substances 0.000 claims description 2
- 235000015110 jellies Nutrition 0.000 claims 2
- 239000008274 jelly Substances 0.000 claims 2
- 238000009413 insulation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
- H01M50/152—Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/552—Terminals characterised by their shape
- H01M50/559—Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
- H01M50/609—Arrangements or processes for filling with liquid, e.g. electrolytes
- H01M50/627—Filling ports
- H01M50/636—Closing or sealing filling ports, e.g. using lids
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses an end cover subassembly, battery monomer, energy memory and consumer of battery, the end cover subassembly includes: a cover plate and an electrode column. The cover plate is provided with a convex part on at least one side surface of the cover inner side and the cover outer side, the convex part is annular, a surrounding area of the convex part is a concave part, the cover plate is provided with a liquid injection hole which is communicated along the thickness direction of the cover plate, and the liquid injection hole is positioned in the concave part; the electrode column is hermetically connected in the liquid injection hole. Through set up convex part, concave part and reduction trompil on the apron, the structural strength of multiplicable apron, and then make the end cover subassembly more reliable, improve the security.
Description
Technical Field
The utility model relates to a battery field, concretely relates to end cover subassembly, battery monomer, energy memory and consumer of battery.
Background
The battery generally includes a casing, an end cap and a battery core, wherein the casing is used for placing the battery core, and the end cap is arranged at the end part of the casing and used for sealing the battery. In the prior art, the end cover of the battery usually adopts a flat plate structure, the structural strength of the flat plate end cover is lower, and the end cover is usually provided with a liquid injection hole and an electrode column independently, the structural strength of the end cover is reduced due to more holes, the battery is easy to damage when in collision, and has larger potential safety hazard,
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an end cover assembly of battery, the end cover assembly trompil is less, and structural strength is higher, and the security is high.
The utility model discloses still aim at providing a battery monomer who has above-mentioned end cover subassembly.
The utility model discloses still aim at providing an energy memory who has above-mentioned battery.
The utility model discloses still aim at providing an consumer who has above-mentioned energy memory.
According to the utility model discloses end cover assembly of battery, end cover assembly includes: a cover plate and an electrode column. The cover plate is provided with a convex part on at least one side surface of the cover inner side and the cover outer side, the convex part is annular, a convex part surrounding area is a concave part, the cover plate is provided with a liquid injection hole which is communicated along the thickness direction of the cover plate, and the liquid injection hole is positioned in the concave part; the electrode column is connected in the liquid injection hole in a sealing mode.
According to the utility model discloses the end cover subassembly of battery, the end cover subassembly sets up in the tip of battery, and the apron is the lid outside towards one side outside the battery, and the apron is inboard for the lid towards one side inboard of battery, is provided with the convex part on the apron to the region that the convex part encircles constitutes the concave part, and convex part and concave part set up respectively on the surface of the inboard and/or lid outside of lid, and the structural strength of multiplicable apron makes the apron non-deformable when suffering the impact. After the battery has been injected into electrolyte through the electrolyte injection hole, the electrolyte injection hole is sealed through the electrode column, the current conduction work of the battery can be completed when the electrode column is used as a sealing piece, the opening on the cover plate can be less, and the structural strength of the cover plate is further increased. From this, through set up the convex part on the apron and reduce the trompil, the structural strength of multiplicable apron, and then make the end cover subassembly more reliable, improve the security.
In some embodiments, the protrusion is formed on the cover plate by integral punching; and the convex part is formed by a part of the cover plate protruding from one of the inner side and the outer side of the cover to the other of the inner side and the outer side of the cover. Through integrative punching press, can reduce the processing cost of apron.
Further, the cover plate is a circular plate, the convex part is circular, and the liquid injection hole is located at the center of the concave part. Therefore, the processing difficulty of the cover plate can be reduced, and the processing cost is further reduced.
In some embodiments, the end cap assembly of the cell further comprises a sealing ring that fits over an edge of the cover plate. The sealing ring can form sealing between the cover plate and the shell of the battery, and therefore the safety of the battery is improved.
Optionally, the cover plate is a metal plate, and the seal ring is an insulating member. The sealing ring can prevent short circuit between the cover plate and the shell, and can improve the safety of the battery.
Further, the edge of the cover plate is an edge portion, the edge portion is arranged around the protruding portion, and the sealing ring is arranged on the edge portion. The end cover assembly can be connected with a shell of the battery through the edge part of the cover plate, and therefore the shell of the battery is in insulation sealing.
According to the utility model discloses battery cell of the embodiment of second aspect, battery cell includes: a can, a jellyroll, and an end cap assembly for a cell of any of the above embodiments, the can having an opening; the winding core is accommodated in the shell; the end cover assembly covers the opening, the cover inner side of the cover plate faces the winding core, and the electrode column is connected and conducted with the winding core.
According to the utility model discloses the battery monomer of second aspect embodiment through with above-mentioned end cover assembly installation on battery monomer, can make the free structure of battery simpler when increasing battery monomer structural strength, has improved the free security of battery.
Further, battery monomer still includes the collector dish, the collector dish is established in the casing, the collector dish is located roll core with between the apron, in the collector dish perhaps the collector dish with be equipped with the gas storage cavity between the apron, be equipped with the intercommunication on the collector dish the through-hole of gas storage cavity. When electrolyte in the battery unit body leaks, the through holes in the flow collecting disc can flow into the gas storage cavity, so that the electrolyte is prevented from damaging the external environment, and the safety is improved.
Optionally, the current collecting disc is a conductor, and one end of the electrode column located on the inner side of the cover is connected and conducted with the current collecting disc. The electrode column is connected with the current collecting disc, so that the battery can form a passage, and the battery can be charged and discharged.
According to the utility model discloses energy storage device of the embodiment of third aspect, including the battery cell in the above-mentioned embodiment.
According to the utility model discloses energy memory through adopting foretell battery monomer, is favorable to improving energy memory's security.
According to the utility model discloses consumer of the embodiment of fourth aspect, including the energy memory in the above-mentioned embodiment.
According to the utility model discloses consumer, through adopting foretell energy memory, increased consumer's security.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a cross-sectional view of an end cap assembly in accordance with an embodiment of the present invention.
Fig. 2 is a top view of a cover plate of an end cap assembly in accordance with an embodiment of the present invention.
Fig. 3 is a cross-sectional view of a battery cell according to an embodiment of the present invention.
Fig. 4 is a schematic view of an electric device according to a fourth aspect of the present invention.
Reference numerals:
a battery cell 1,
An end cap assembly 100,
A cover plate 10,
Lid inner side 11, lid outer side 12, convex portion 13, pouring hole 14, concave portion 15, edge portion 16,
An electrode column 20,
A sealing ring 30,
A housing 200, an opening 210,
A winding core 300,
Energy storage device Y and electric equipment Z.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The end cap assembly 100, the battery cell 1, the energy storage device Y and the electric equipment Z according to the embodiment of the present invention are described below with reference to fig. 1 to 4.
As shown in fig. 1 and 2, according to the end cap assembly 100 of the battery of the embodiment of the present invention, the end cap assembly 100 includes: a cover plate 10 and an electrode column 20.
The cover plate 10 has a cover inner side 11 and a cover outer side 12 on opposite sides thereof, the cover plate 10 has a convex portion 13 on at least one surface of the cover inner side 11 and the cover outer side 12, the convex portion 13 is annular, a convex portion surrounding region is a concave portion 15, the cover plate 10 has a liquid injection hole 14 penetrating through the cover plate 10 in the thickness direction, and the liquid injection hole 14 is located in the concave portion 15. The electrode column 20 is hermetically connected in the liquid injection hole 14.
Specifically, the end cap assembly 100 is disposed at an end of the battery, a side of the cap plate 10 facing the outside of the battery is a cap outer side 12, a side of the cap plate 10 facing the inside of the battery is a cap inner side 11, a convex portion 13 is disposed on the cap plate 10, a region surrounded by the convex portion 13 forms a concave portion 15, and the convex portion 13 and the concave portion 15 are disposed on the surfaces of the cap inner side 11 and/or the cap outer side 12, respectively, so that the structural strength of the cap plate 10 can be increased, and the cap plate 10 is not easily deformed when subjected to impact.
When the battery carries out production, need to pour into the electrolyte into in the battery of accomplishing the equipment, offer notes liquid hole 14 alone on apron 10 usually, pour into the battery with electrolyte through annotating liquid hole 14 inside, after the completion of pouring into, carry out the shutoff through sealed gluey nail to annotating liquid hole 14, in order to prevent that electrolyte from revealing, when seting up notes liquid hole 14, still need set up the trompil that is used for installing electrode post 20 on the apron 10 surface, it can lead to apron 10 structural strength to reduce to set up a plurality of holes on the apron 10 surface, make apron 10 take place the damage easily, in this application, after pouring the electrolyte into the battery, through annotating liquid hole 14 with electrode post 20 sealing connection in, can carry out the shutoff to annotating liquid hole 14 while, realize the electric current conduction through electrode post 20, can make the trompil on the apron 10 less, and then increase the structural strength of apron 10.
According to the utility model discloses end cover assembly 100 of battery, through set up convex part 13, concave part 15 and reduce the trompil on apron 10, multiplicable apron 10's structural strength, and then make end cover assembly 100 more reliable, improve the security.
It will be appreciated that the specific location of the projections 13 on the cover plate 10 may include a number of options, for example: the convex portion 13 may be disposed on the cover inner side 11 of the cover plate 10, or may be disposed on the cover outer side 12 of the cover plate 10, or may be disposed on both the cover inner side 11 and the cover outer side 12 of the cover plate 10, so as to improve the structural strength of the cover plate 10, and accordingly, the concave portion 15 formed by the area surrounded by the convex portion 13 may have different schemes according to the arrangement of the convex portion 13, and may be disposed according to actual requirements.
However, since the liquid injection hole 14 is provided in the concave portion 15 formed around the convex portion 13, the electrolyte overflowing from the liquid injection hole 14 can be temporarily accumulated in the concave portion 15 when the electrolyte is injected into the battery, and the electrolyte is prevented from overflowing the lid plate 10, thereby increasing the safety. The shape of the convex portion 13 is formed in a ring shape, which can further increase the structural strength of the cover plate 10 and improve safety.
It should be noted that the shape enclosed by the convex portion 13 is not particularly limited, and the convex portion 13 may be a circular ring shape with a circular outer contour, a square outer contour, or a triangular outer contour, and may be selected according to the specific shape of the battery.
In some embodiments, the projections 13 are formed on the cover plate 10 by integral punching. And the convex portion 13 is formed by a part of the cover plate 10 protruding from one of the cover inner side 11 and the cover outer side 12 to the other of the cover inner side 11 and the cover outer side 12.
Specifically, the cover plate 10 has a flat plate structure before the cover plate 10 is pressed, and the cover plate 10 has low structural strength and is easily damaged by an impact. When the cover plate 10 is stamped, the cover plate 10 protrudes from the cover inner side 11 to the cover outer side 12, or protrudes from the cover outer side 12 to the cover inner side 11 to form the convex portion 13, and the cross section of the cover plate 10 is in a shape protruding to one side, so that the cover plate 10 is stronger in pressure resistance and impact resistance, stronger in structural strength, and capable of improving safety. And through the integrative punching press of apron 10, machining efficiency is higher, and the processing cost is lower.
Thus, the structural strength of the cover plate 10 can be improved and the processing cost can be reduced by integral pressing.
It can be understood that the cross-sectional shape of the cover plate 10 is related to the outer contour of a stamping die used in integral stamping, and the shape of the stamping die can be adjusted according to requirements, for example, the shape of the stamping die can be a wave shape, and the cross-sectional shape of the cover plate 10 after stamping is also a wave shape, which can further increase the structural strength of the cover plate 10.
In some embodiments, the end cap assembly 100 of the cell further includes a sealing ring 30 that fits over the edge of the cover plate 10.
Specifically, when the battery is assembled, the end cap assembly 100 needs to be connected to the case 200 of the battery, and the sealing ring 30 is provided at the edge of the cap plate 10, so that the sealing property between the end cap assembly 100 and the case 200 can be increased, the leakage of the electrolyte from the connection between the two can be prevented, and the reliability of the battery can be improved.
Alternatively, the cap plate 10 is a metal plate and the seal ring 30 is an insulator.
Specifically, the electrode column 20 is connected to the liquid inlet 14 in a sealing manner and contacts with the cover plate 10, and during the use of the battery, the electrode column 20 is used for conducting current to the battery, and at this time, the current is also conducted to the cover plate 10, the cover plate 10 is covered on the shell 200, and the sealing ring 30 between the cover plate 10 and the shell 200 is provided as an insulating member, so that the short circuit between the shell 200 and the cover plate 10 can be prevented.
This can improve the safety of the battery.
It should be noted that, the material of the sealing ring 30 is not particularly limited, and the sealing ring 30 may be rubber or polytetrafluoroethylene, and may be selected according to actual needs.
As shown in fig. 1 and 2, the edge of the cover plate 10 is an edge portion 16, the edge portion 16 is disposed around the convex portion 13, and the seal ring 30 is disposed on the edge portion 16. The end cap assembly 100 may be coupled to the case 200 of the battery through the edge portion 16 of the cap plate 10 to form an insulation seal with the case 200 of the battery. The edge portion 16 can limit the position of the seal ring 30, so that the seal ring 30 is not easy to slip off and drop, and the sealing insulation between the cover plate 10 and the housing 200 is improved.
As shown in fig. 3, according to the battery cell 1 of the embodiment of the second aspect of the present invention, the battery cell 1 includes: can 200, jellyroll 300, and end cap assembly 100 of the battery of any of the embodiments described above, with the can 200 having an opening 210. The winding core 300 is accommodated in the can 200. The end cap assembly 100 covers the opening 210, the cap inner side 11 of the cap plate 10 is disposed toward the roll core 300, and the electrode shaft 20 is connected to and conducted with the roll core 300.
According to the utility model discloses battery monomer 1 of second aspect embodiment, through installing above-mentioned end cover assembly 100 on battery monomer 1, can make battery monomer 1's structure simpler when increasing battery monomer 1 structural strength, improved battery monomer 1's security.
Further, the battery unit 1 further comprises a current collecting disc, the current collecting disc is arranged in the shell 200 and located between the winding core 300 and the cover plate 10, a gas storage cavity is arranged in the current collecting disc or between the current collecting disc and the cover plate 10, and a through hole communicated with the gas storage cavity is formed in the current collecting disc. The current collector disc is used for guiding out the current in the single battery 1, when the single battery 1 collides or breaks down and the electrolyte in the single battery 1 leaks, the electrolyte can flow into the gas storage cavity through the through hole in the current collector disc, and the gas storage cavity can buffer, so that the electrolyte is prevented from damaging the external environment, and the safety is improved.
Optionally, the current collecting plate is a conductor, and one end of the electrode column 20 located on the inner side 11 of the cover is connected and conducted with the current collecting plate. After the single battery 1 is packaged, the electrode column 20 is hermetically connected in the liquid injection hole 14, so that the single battery 1 has good sealing performance. The electrode posts 20 are connected and conducted with the current collecting plate, so that the current in the single battery 1 can be led out, and the single battery 1 is discharged.
According to the embodiment of the third aspect of the present invention, the energy storage device Y includes the battery cell 1 in the above embodiment.
Specifically, the energy storage device Y may include a battery box, and the battery box is provided with a plurality of battery cells 1, so as to realize intensive setting of the battery cells 1. When energy memory Y includes a plurality of battery cell 1, and every battery cell 1 all adopts above-mentioned structure, multiplicable energy memory Y's structural strength, and then the security improves.
According to the utility model discloses energy memory Y through adopting foretell battery, is favorable to improving energy memory Y's security.
As shown in fig. 4, the electric device Z according to the fourth aspect of the present invention includes the energy storage device Y in the above embodiments.
In the present embodiment, the structure of the electric device Z is not limited. For example, the electric device Z may be a mobile device such as a vehicle, a ship, a small airplane, etc., and includes a power source including the energy storage device Y. The electric energy provided by the energy storage device Y provides driving force for the electric equipment Z. The mobile device can be a pure electric device, that is, the driving force of the electric device Z is all electric energy, and the power source only comprises the energy storage device Y. The mobile device can also be a hybrid device, and the power source comprises an energy storage device Y, an engine and other power devices. Taking the vehicle shown in fig. 4 as an example, in some embodiments, the electric device Z is a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid electric vehicle, a range extended vehicle, an electric tricycle, or a two-wheeled electric vehicle.
For example, the electric device Z may be an energy storage device such as an energy storage cabinet, a charging cabinet for a mobile device, or an energy storage device for another device. For example, the solar power generation equipment can be configured with an energy storage cabinet, and electric energy generated by solar power generation is temporarily stored in the energy storage cabinet so as to be supplied to devices such as street lamps and bus stop boards.
According to the utility model discloses consumer Z through adopting foretell energy memory Y, has increased consumer Z's security.
In the description of the present specification, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (11)
1. An end cap assembly for a battery, comprising:
the liquid injection cover comprises a cover plate (10), wherein the two opposite sides of the cover plate (10) are a cover inner side (11) and a cover outer side (12), the cover plate (10) is provided with a convex part (13) on at least one side surface of the cover inner side (11) and the cover outer side (12), the convex part (13) is annular, the surrounding area of the convex part (13) is a concave part (15), the cover plate (10) is provided with a liquid injection hole (14) which penetrates through the cover plate (10) in the thickness direction, and the liquid injection hole (14) is positioned in the concave part (15);
and the electrode column (20) is hermetically connected in the liquid injection hole (14).
2. The end cap assembly for a battery according to claim 1, wherein the protrusion (13) is formed on the cap plate (10) by integral punching; and the convex part (13) is formed by protruding a part of the cover plate (10) from one side of the cover inner side (11) and the cover outer side (12) to the other side of the cover inner side (11) and the cover outer side (12).
3. The end cap assembly of the battery according to claim 1, wherein the cap plate (10) is a circular plate, the protrusion (13) is a circular ring shape, and the electrolyte injection hole (14) is located at the center of the recess (15).
4. The end cap assembly for a battery according to claim 1, further comprising a sealing ring (30) fitted over an edge of the cap plate (10).
5. The end cap assembly for a battery according to claim 4, wherein the cap plate (10) is a metal plate and the sealing ring (30) is an insulator.
6. The end cap assembly of the battery according to claim 4, wherein the edge of the cap plate (10) is an edge portion (16), the edge portion (16) is disposed around the protrusion (13), and the sealing ring (30) is disposed on the edge portion (16).
7. A battery cell, comprising:
a housing (200) having an opening (210);
a winding core (300) housed in the case (200);
the end cap assembly (100) of the battery according to any one of claims 1-6, the end cap assembly (100) covering the opening (210), the cap inner side (11) of the cap plate (10) being disposed toward the jelly roll (300), the electrode shaft (20) being in connecting communication with the jelly roll (300).
8. The battery cell of claim 7, further comprising:
the collector disc, the collector disc is established in casing (200), the collector disc is located roll core (300) with between apron (10), in the collector disc perhaps the collector disc with be equipped with the gas storage chamber between apron (10), be equipped with the intercommunication on the collector disc the through-hole of gas storage chamber.
9. The battery cell according to claim 8, characterized in that the current collecting disc is a conductor, and one end of the electrode column (20) located on the inner side (11) of the cover is connected and conducted with the current collecting disc.
10. An energy storage device, characterized by comprising a battery cell (1) according to any one of claims 1-9.
11. An electrical consumer, characterized in that it comprises an energy storage device according to claim 10.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222976947.9U CN218827490U (en) | 2022-11-04 | 2022-11-04 | End cover assembly of battery, battery monomer, energy storage device and consumer |
| PCT/CN2023/129627 WO2024094179A1 (en) | 2022-11-04 | 2023-11-03 | End cover assembly of battery, battery cell, energy storage device, and electrical apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222976947.9U CN218827490U (en) | 2022-11-04 | 2022-11-04 | End cover assembly of battery, battery monomer, energy storage device and consumer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218827490U true CN218827490U (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222976947.9U Active CN218827490U (en) | 2022-11-04 | 2022-11-04 | End cover assembly of battery, battery monomer, energy storage device and consumer |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN218827490U (en) |
| WO (1) | WO2024094179A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024094179A1 (en) * | 2022-11-04 | 2024-05-10 | 厦门海辰储能科技股份有限公司 | End cover assembly of battery, battery cell, energy storage device, and electrical apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100508947B1 (en) * | 2003-06-18 | 2005-08-17 | 삼성에스디아이 주식회사 | Secondary battery and methode for sealing thereof |
| CN106654077A (en) * | 2017-01-23 | 2017-05-10 | 珠海微矩实业有限公司 | Button battery |
| CN108023037B (en) * | 2017-12-15 | 2024-06-25 | 珠海微矩实业有限公司 | Button cell |
| CN110970580A (en) * | 2019-11-04 | 2020-04-07 | 黄凯 | Button cell and manufacturing method thereof |
| CN211376797U (en) * | 2019-11-21 | 2020-08-28 | 银隆新能源股份有限公司 | Battery with explosion-proof structure |
| CN218827490U (en) * | 2022-11-04 | 2023-04-07 | 厦门海辰储能科技股份有限公司 | End cover assembly of battery, battery monomer, energy storage device and consumer |
-
2022
- 2022-11-04 CN CN202222976947.9U patent/CN218827490U/en active Active
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2023
- 2023-11-03 WO PCT/CN2023/129627 patent/WO2024094179A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024094179A1 (en) * | 2022-11-04 | 2024-05-10 | 厦门海辰储能科技股份有限公司 | End cover assembly of battery, battery cell, energy storage device, and electrical apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024094179A1 (en) | 2024-05-10 |
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