CN115020924A - Rivet, cylindrical battery and battery pack - Google Patents
Rivet, cylindrical battery and battery pack Download PDFInfo
- Publication number
- CN115020924A CN115020924A CN202210814666.5A CN202210814666A CN115020924A CN 115020924 A CN115020924 A CN 115020924A CN 202210814666 A CN202210814666 A CN 202210814666A CN 115020924 A CN115020924 A CN 115020924A
- Authority
- CN
- China
- Prior art keywords
- rivet
- cylindrical
- clamping
- cylindrical battery
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005611 electricity Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 8
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 238000004898 kneading Methods 0.000 description 7
- 238000003466 welding Methods 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical group C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Images
Classifications
-
- 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
- H01M50/528—Fixed electrical connections, i.e. not intended for disconnection
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/107—Primary casings; Jackets or wrappings characterised by their shape or physical structure 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
- H01M50/531—Electrode connections inside a battery casing
-
- 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
- H01M50/572—Means for preventing undesired use or discharge
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses a rivet, a cylindrical battery, a battery pack and an electronic device. The rivet shaft extends along the axis direction thereof, and the rivet head is connected along one end in the both ends of the axis direction of the rivet shaft, and at least one clamping part is further arranged on the end face of the other end. The clamping portion can be used for being clamped with a switching piece in the cylindrical battery. The rivet can be used for the anode output end of a cylindrical battery, the rivet shaft and the adapter sheet can be welded, and then the rivet shaft and the adapter sheet are clamped through the clamping portion, the clamping portion can enhance the connection strength of the rivet shaft and the adapter sheet, the top and the bottom of the shell body generate an expansion deformation trend due to generated gas in the use process of the cylindrical battery, the clamping portion can also prevent the bottom cover or the cylindrical side wall from driving the rivet to be separated from the adapter sheet, and the service life of the cylindrical battery is prolonged.
Description
Technical Field
The invention relates to the field of lithium battery manufacturing, in particular to a rivet, a cylindrical battery and a battery pack.
Background
As one of the most core components of new energy vehicles, lithium ions have the advantages of high energy density, long cycle life, safety, environmental protection, and the like, so that lithium batteries are becoming the mainstream direction of the electric era.
Lithium ion batteries are morphologically divided into hard shell batteries, soft pack batteries and cylindrical batteries, wherein the cylindrical batteries have the advantages of high volume energy density, simple structure, easy grouping, convenience in standardization and the like. With the development of technology, large cylindrical batteries are becoming the mainstream direction of the market.
The cylindrical battery comprises a shell and a cylindrical battery core. The shell comprises a top cover, a bottom cover and a cylindrical side wall, the cylindrical battery cell is installed in the shell, the positive electrode of the cylindrical battery cell is close to the bottom cover, and the negative electrode of the cylindrical battery cell is close to the top cover. In addition, the positive electrode of the cylindrical battery cell is generally output through a rivet, the rivet is arranged on the bottom cover and is insulated from the bottom cover, and the negative electrode is output through the shell. Particularly, cylinder electricity core is by anodal piece and the electric core of axis winding formation main part of negative pole piece, and the both ends of cylinder electricity core are through rubbing the flat anodal plane of rubbing and kneading the plane with the negative pole of forming, because the anodal plane of kneading and the negative pole of kneading have fluffy type, need make it fixed respectively through two switching pieces, casing and rivet are connected respectively to the rethread switching piece.
The lithium cell is in the use, need be through lasting charge-discharge, and at the in-process of charge-discharge, can produce a certain amount of steam, can punching press cylinder lateral wall behind the steam gathering, top cap or bottom, thereby cause the cylinder lateral wall, top cap or bottom swell, the position swell degree at bottom center is the biggest, and the rivet generally is located the center of top cap, constantly expand through the bottom, constantly drag the rivet, and make rivet and the switching piece that is located the positive pole continuously rub, thereby cause rivet and switching piece to break away from, cause scrapping of cylinder battery, because strengthen the joint strength of switching piece and rivet, the quality to improving the cylinder battery has important effect.
Disclosure of Invention
An object of the present invention is to provide a rivet, a cylindrical battery and a battery pack, which solve the above-mentioned problems occurring in the prior art.
In order to solve the above-mentioned problems, according to an aspect of the present invention, there is provided a rivet for a cylindrical battery, comprising:
the rivet shaft extends along the axis direction of the rivet shaft, and the end face of the rivet shaft is provided with at least one clamping part;
the rivet head is connected with one end of the rivet shaft, which is far away from the clamping portion.
In one embodiment, the clamping portion is a plurality of clamping blocks and/or a plurality of clamping grooves.
In one embodiment, one end of the fixture block, which is far away from the rivet shaft, is provided with a radially extending extension part.
In one embodiment, the rivet shaft is provided with a connecting piece, the connecting piece is annular and is sleeved on the periphery of the rivet shaft away from the rivet head, and the connecting piece is also provided with a plurality of other clamping parts.
In one embodiment, another plurality of the clamping parts are arranged at intervals along the circumferential direction of the connecting piece.
The invention also relates to a cylindrical battery comprising:
a housing comprising a cylindrical sidewall and a bottom cover;
in the rivet, the rivet shaft penetrates through the bottom cover and is arranged in an insulated manner with the bottom cover, and the rivet head is positioned outside the bottom cover;
the cylindrical battery cell is arranged in the cylindrical side wall, and the positive electrode of the cylindrical battery cell is positioned at one end close to the bottom cover; and
the adapter plate, the adapter plate is connected the positive pole of cylinder electricity core with the rivet, just the adapter plate with the rivet passes through joint portion joint.
In one embodiment, one of the rivet shaft and the adapter plate is provided with a plurality of clamping blocks, and the other one of the rivet shaft and the adapter plate is provided with a plurality of clamping grooves matched with the clamping blocks.
In one embodiment, a plurality of clamping blocks are arranged on the rivet, and one end of each clamping block, which is close to the adapter plate, is provided with a radially extending extension part;
and the adapter plate is provided with a clamping groove matched with the clamping block and the extension part.
The present invention also relates to a battery pack, comprising:
a frame;
the cylindrical battery is characterized in that the plurality of cylindrical batteries are arranged in the frame side by side.
The invention also relates to an electronic device comprising at least one battery pack as claimed in the preceding claims.
The rivet can be used for the anode output end of a cylindrical battery, the rivet shaft and the adapter sheet can be welded, and then the rivet shaft and the adapter sheet are clamped through the clamping portion, the clamping portion can enhance the connecting strength of the rivet shaft and the adapter sheet, the generated gas causes the top bottom of the shell to generate an expansion deformation trend in the inflation and deflation process of the cylindrical battery, and the clamping portion can also prevent the bottom cover or the cylindrical side wall from driving the rivet to be separated from the adapter sheet, so that the service life of the cylindrical battery is prolonged.
Drawings
FIG. 1 is a schematic illustration of a rivet in an embodiment of the present invention.
Fig. 2 is a schematic view of the rivet shown in fig. 1 applied to a cylindrical battery.
Fig. 3 is a schematic view of a cylindrical battery according to another embodiment of the present invention.
Reference numerals: 100. a cylindrical battery; 1. riveting; 11. a rivet shaft; 12. a rivet head; 13. a clamping part; 131. a clamping block; 14. a connecting member; 2. a housing; 21. a cylindrical side wall; 22. a bottom cover; 3. a cylindrical cell; 31. a positive electrode; 4. a patch; 41. a clamping groove.
Detailed Description
The objects, features and advantages of the present invention will be more clearly understood from the following detailed description of the preferred embodiments of the present invention taken in conjunction with the accompanying drawings. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but are merely intended to illustrate the spirit of the technical solution of the present invention.
In the following description, for the purposes of illustrating various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. One skilled in the relevant art will recognize, however, that an embodiment can be practiced without one or more of the specific details. In other instances, well-known devices, structures and techniques associated with this application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.
Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In the following description, for the purposes of clearly illustrating the structure and operation of the present invention, directional terms are used, but the terms "front", "rear", "left", "right", "outer", "inner", "outer", "inward", "upper", "lower", etc. should be interpreted as words of convenience and should not be interpreted as limiting terms.
Name interpretation:
cylindrical battery: including casing and cylinder electricity core, the casing is cylindrical, and has sealed accommodation space, and the cylinder electricity core is located the casing.
A cylindrical battery cell: the battery is formed by winding two pole piece stacked bodies and a diaphragm around an axis, the two pole pieces are isolated by the diaphragm, the two pole pieces respectively extend out of two ends of a cylindrical battery cell, the extended pole pieces form a positive pole kneading plane and a negative pole kneading plane after being kneaded, the negative pole kneading plane is electrically connected with a top cover, current is output through the top cover, the positive pole kneading plane is connected with a switching piece and a rivet, and the current is output through the rivet.
The switching piece: the switching piece is discoid and can electrically conduct, and the positive pole of switching piece connection through the welding mode is rubbed the plane.
Riveting: the positive electrode output end is arranged on the bottom cover and is insulated from the bottom cover; the rivet includes rivet axle and rivet head, and the one end of rivet extends to the bottom outside and connects the rivet head, and the other end is located the casing and connects the switching piece through welded mode electricity.
The present invention relates to a rivet 1, as shown in fig. 1, the rivet 1 being used for a cylindrical battery 100, the rivet 1 including a rivet shaft 11 and a rivet head 12. The rivet shaft 11 extends along the axis direction thereof, and the rivet head 12 is connected along one of the two ends of the axis direction of the rivet shaft 11, and the end face of the other end is further provided with a clamping portion 13. The number of the clamping portions 13 can be one or more, and the clamping portions 13 can be used for clamping with the adaptor 4 inside the cylindrical battery 100. The rivet 1 can be used at the output end of the anode 31 of the cylindrical battery 100, the rivet shaft 11 and the adapter sheet 4 can be welded, and then the rivet shaft 11 and the adapter sheet 4 are clamped by the clamping portion 13, the clamping portion 13 can enhance the connection strength of the rivet shaft 11 and the adapter sheet 4, the generated gas causes the top and bottom of the shell 2 to generate an expansion deformation trend in the inflation and deflation process of the cylindrical battery 100, the clamping portion 13 can also prevent the bottom cover 22 or the cylindrical side wall 21 from driving the rivet 1 to be separated from the adapter sheet 4, and the service life of the cylindrical battery 100 is prolonged.
Optionally, the locking portion 13 is a plurality of locking blocks 131 or a plurality of locking grooves 41. The latch 131 extends along the axial direction of the rivet shaft 11 and protrudes from the end surface of the rivet shaft 11, and the engaging groove 41 may be disposed on the end surface of the rivet shaft 11. In the embodiment of fig. 1, the clipping portion 13 is a plurality of clipping blocks 131, the clipping blocks 131 are dome-shaped, and the shapes of the clipping blocks 131 are consistent. It should be understood that the cartridge 131 may have other shapes, such as a ratchet-type, and that the plurality of cartridges 131 may have different shapes, such as a portion of the cartridges 131 may have a dome-shape and another portion may have a ratchet-type shape. A plurality of semicircular catching grooves 41 or catching grooves 41 matched with the thorns may be provided, or the catching blocks 131 and the catching grooves 41 may be mixedly and alternately arranged.
Optionally, the arrangement of the latch 131 and the slot 41 is not limited, and the latch may be arranged at intervals along the circumferential direction or the radial direction of the rivet shaft 11, or may be arranged randomly.
Optionally, one end of the fixture block 131, which is away from the rivet shaft 11, is provided with an extending portion extending in the radial direction, and the extending portion can enhance the clamping strength of the rivet shaft 11 and the adaptor piece 4. The extending portion may extend toward the outer circumferential direction of the rivet shaft 11, may extend toward the center of the rivet shaft 11, or may extend toward other directions, and the directions of the extending portions of the plurality of latches 131 may not be the same, and the directions of the extending portions of the latches 131 are not limited. In addition, the extension may have various shapes, such as a triangle or a semicircle, without limiting the shape of the extension.
Optionally, a connecting member 14 is disposed on the rivet shaft 11, the connecting member 14 is sleeved on the periphery of the rivet shaft 11 away from the rivet head 12, and a plurality of clamping portions 13 are also disposed on the connecting member 14. Connecting piece 14 is connected to rivet axle 11 and ring cover in the periphery of rivet axle 11, and connecting piece 14 is used for connecting adaptor piece 4, because the area of connecting piece 14 is bigger, can increase welding area, can also set up more joint portion 13 or draw-in groove 41 on connecting piece 14 in addition, can increase rivet 1 and adaptor piece 4's joint fastness. In the embodiment of fig. 1, 2 and 3, the connector 14 is annular and the top of the connector 14 is a cambered surface that is convex toward the top. In the embodiment of fig. 3, the connecting fixture block 131 is a rectangular block, the extending portion extends toward the axis far away from the rivet shaft 11, during the charging and discharging processes of the cylindrical battery 100, when the generated gas impacts the bottom cover 22 or the cylindrical sidewall 21, the center of the bottom cover 22 expands toward the outside, and the extending portion extends into the adaptor piece 4, so that the clamping strength of the rivet 1 and the adaptor piece 4 can be further enhanced, and the bottom cover 22 is prevented from driving the rivet 1 to separate from the adaptor piece 4, which further results in the rejection of the cylindrical battery 100. In the embodiment of fig. 3, the clamping portion 13 is only disposed on the connecting member 14, and those skilled in the art can also dispose the clamping portion 13 on the connecting member 14 and the rivet shaft 11, and weld the rivet shaft 11 and the interposer 4 through the welding pin after clamping the clamping portion 13 on the connecting member 14 and the rivet shaft 11 and the interposer 4.
Further, another plurality of the snap portions 13 are arranged at intervals in the circumferential direction of the connecting member 14. It should be understood that in other embodiments, the plurality of clamping portions 13 may be arranged at intervals in other manners, and the arrangement and distribution manner of the clamping portions 13 is not limited.
The invention also relates to a cylindrical battery 100, and the cylindrical battery 100 comprises a shell 2, a cylindrical battery core 3, an adapter sheet 4 and the rivet 1. Specifically, the housing 2 includes a cylindrical side wall 21 and a bottom cover 22, the bottom cover 22 being connected to a bottom end of the cylindrical side wall 21. The cylindrical cell 3 is mounted within the cylindrical side wall 21 and the positive electrode 31 of the cylindrical cell 3 is located near one end of the bottom cover 22. The interposer 4 is electrically connected to the positive electrode 31 of the cylindrical cell 3. The rivet shaft 11 of the rivet 1 penetrates through the bottom cover 22 and is arranged in an insulated manner with the bottom cover 22, and the rivet head 12 is located outside the bottom cover 22. In addition, the adapter plate 4 is connected with the rivet shaft 11 in a welding mode and is clamped through a clamping portion 13. Through with rivet axle 11 and the 4 joints of switching piece, can strengthen the joint strength of rivet axle 11 and switching piece 4, prevent that rivet axle 11 from being driven by bottom 22 and breaking away from switching piece 4, extension cylindrical battery 100's life-span at cylindrical battery 100 charge-discharge process.
Further, the rivet shaft 11 may be provided with the above-described attachment 14, as shown in fig. 3, so that the snap portion 13 is provided on the attachment 14. Specifically, in the manufacturing process of the cylindrical battery 100, the rivet 1 needs to be installed on the bottom cover 22, the anode 31 and the adaptor piece 4 of the cylindrical battery cell 3 are welded, then the cylindrical battery cell 3 and the adaptor piece 4 are placed in the casing 2, the anode 31 and the adaptor piece 4 of the cylindrical battery cell 3 are placed at the bottom of the casing 2, and then the longer welding needle penetrates into the adaptor piece 4 from the central channel of the cylindrical battery cell 3 and welds the adaptor piece 4 and the rivet shaft 11. Before the adaptor plate 4 and the rivet shaft 11 are welded, the rivet shaft 11 and the adaptor plate 4 need to be clamped and connected firstly. In addition, in order to prevent the clamping portion 13 from affecting the welding of the adaptor piece 4 and the rivet shaft 11, the number of the clamping portions 13 on the end surface of the rivet shaft 11 needs to be controlled at the edge of the rivet shaft 11 as much as possible, and the clamping portions 13 are preferably arranged on the connecting piece 14, as shown in fig. 3, the rivet shaft 11 is welded with the connecting piece, and the clamping portions 13 on the connecting piece 14 are clamped with the adaptor piece 4.
Alternatively, one of the rivet shaft 11 and the adaptor plate 4 is provided with a plurality of latches 131, and the other is provided with a plurality of slots 41 matching the latches 131. In the embodiment of fig. 2 and 3, a plurality of latches 131 are provided on the rivet 1, and a plurality of catching slots 41 matching the latches 131 are provided on the adaptor piece 4. It should be understood that a plurality of fixture blocks 131 and fixture grooves 41 may be further disposed on the rivet shaft 11, a plurality of fixture grooves 41 and fixture blocks are disposed on the adaptor piece 4, and the fixture blocks 131 and the fixture grooves 41 on the rivet shaft 11 and the fixture grooves 41 and the fixture blocks 131 on the adaptor piece 4 are clamped, preferably, the fixture blocks 131 and the fixture grooves 41 are disposed at intervals, the fixture blocks 131 and the fixture grooves 41 are arranged along the circumferential direction of the rivet shaft 11, one fixture groove 41 is disposed between two adjacent fixture blocks 131, one fixture block 131 is disposed between two adjacent fixture grooves 41, the fixture blocks 131 and the fixture grooves 41 are clamped with each other, the fixture blocks 131 and the fixture grooves 41 are disposed in a staggered manner, the cohesive force between the fixture blocks 131 and the fixture grooves 41 is increased, and the connection strength of the rivet shaft 11 and the adaptor piece 4 is enhanced.
Optionally, as shown in fig. 3, a plurality of blocks 131 are disposed on the rivet 1, an extending portion extending radially toward the rivet shaft 11 is disposed at one end of the block 131 close to the adaptor plate 4, and a locking groove 41 matching the block 131 and the extending portion is disposed on the adaptor plate 4. As can be seen from fig. 3, the extending portion is installed inside the interposer 4 and extends in the radial direction, when the cylindrical battery 100 is produced, the bottom cover 22 expands along the axial direction and towards the outside, and drives the rivet 1 to move away from the interposer 4 along the axial direction and away from the interposer 4, and the radial slot 41 on the interposer 4 prevents the extending portion from disengaging from the slot 41, so as to limit the connection portion and the rivet shaft 11 from disengaging from the interposer 4, and prevent the positive electrode 31 of the cylindrical battery 100 from breaking.
Further, the present invention also relates to a battery pack, which comprises a frame and a plurality of the cylindrical batteries 100, wherein the plurality of cylindrical batteries 100 are arranged in the frame side by side.
Further, the present invention also relates to an electronic device, which includes one or more battery packs as described above, and common electronic devices include vehicles, electric vehicles, and the like, without limiting the kinds of electronic devices.
The rivet 1 can be used at the output end of the anode 31 of the cylindrical battery 100, the rivet shaft 11 and the adapter sheet 4 can be welded, and then the rivet shaft 11 and the adapter sheet 4 are clamped through the clamping portion 13, the clamping portion 13 can not only enhance the connection strength of the rivet shaft 11 and the adapter sheet 4, but also prevent the bottom cover 22 or the cylindrical side wall 21 from driving the rivet 1 to be separated from the adapter sheet 4 after the bottom cover 22 or the cylindrical side wall 21 is expanded by the generated gas in the inflation and deflation process of the cylindrical battery 100, so that the service life of the cylindrical battery 100 is prolonged. The cylindrical battery 100 of the present invention is applied to various electronic devices, so that the service life of the electronic devices can be prolonged, and the phenomenon of disconnection of the electronic devices can be prevented.
While the preferred embodiments of the present invention have been illustrated and described in detail, it should be understood that various changes and modifications of the invention can be effected therein by those skilled in the art after reading the above teachings of the invention. Such equivalents are intended to fall within the scope of the claims appended hereto.
Claims (10)
1. A rivet for a cylindrical battery, comprising:
the rivet shaft extends along the axis direction of the rivet shaft, and the end face of the rivet shaft is provided with at least one clamping part;
the rivet head is connected with one end, far away from the clamping portion, of the rivet shaft.
2. The rivet according to claim 1, wherein the clamping portion is a plurality of clamping blocks and/or a plurality of clamping grooves.
3. A rivet according to claim 2, wherein the end of the clip remote from the rivet shaft is provided with a radially extending extension.
4. The rivet according to claim 2, wherein a connecting member is disposed on the rivet shaft, the connecting member is annular and is sleeved on the periphery of the rivet shaft away from the rivet head, and the connecting member is also provided with a plurality of other clamping portions.
5. A rivet according to claim 4, wherein a plurality of the other snap-in portions are arranged at intervals in the circumferential direction of the connecting member.
6. A cylindrical battery, comprising:
a housing comprising a cylindrical side wall and a bottom cover;
the rivet of claim 1, said rivet shaft extending through and insulated from said bottom cover, said rivet head being located outside said bottom cover;
the cylindrical bare cell is arranged in the cylindrical side wall, and the anode of the cylindrical cell is positioned at one end close to the bottom cover; and
the adapter plate, the adapter plate is connected the positive pole of cylinder electricity core with the rivet, just the adapter plate with the rivet passes through joint portion joint.
7. The cylindrical battery according to claim 6 wherein one of the rivet shaft and the adaptor plate is provided with a plurality of clips and the other is provided with a plurality of slots matching the clips.
8. The cylindrical battery according to claim 6 wherein a plurality of clips are provided on the rivet, and a radially extending extension is provided at one end of the clip adjacent to the adaptor sheet;
and the adapter plate is provided with a clamping groove matched with the clamping block and the extension part.
9. A battery pack, comprising:
a frame;
a plurality of cylindrical batteries according to any one of claims 6 to 8, and a plurality of said cylindrical batteries are mounted side by side within said frame.
10. An electronic device comprising at least one battery pack of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210814666.5A CN115020924A (en) | 2022-07-12 | 2022-07-12 | Rivet, cylindrical battery and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210814666.5A CN115020924A (en) | 2022-07-12 | 2022-07-12 | Rivet, cylindrical battery and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115020924A true CN115020924A (en) | 2022-09-06 |
Family
ID=83080221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210814666.5A Pending CN115020924A (en) | 2022-07-12 | 2022-07-12 | Rivet, cylindrical battery and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115020924A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101176908A (en) * | 2006-11-06 | 2008-05-14 | 比亚迪股份有限公司 | Riveting method as well as method for coupling electrode pole and cover plate of lithium ion battery |
| CN104904036A (en) * | 2012-12-25 | 2015-09-09 | 株式会社杰士汤浅国际 | Electricity storage element, electricity storage element assembly and method for manufacturing electricity storage element |
| CN206461019U (en) * | 2017-02-13 | 2017-09-01 | 山东巨维新能源股份有限公司 | The aluminum shell column battery of end face flow guiding structure |
| CN113363675A (en) * | 2021-07-02 | 2021-09-07 | 深圳市科达利实业股份有限公司 | Cylindrical battery |
| CN214378639U (en) * | 2021-03-31 | 2021-10-08 | 蜂巢能源科技(无锡)有限公司 | Electricity core apron structure and battery |
| CN214754075U (en) * | 2021-03-11 | 2021-11-16 | 东莞塔菲尔新能源科技有限公司 | Top cover structure of power battery and power battery |
| CN114497904A (en) * | 2022-02-24 | 2022-05-13 | 中创新航科技股份有限公司 | Battery assembly method and battery |
| CN114614101A (en) * | 2022-03-17 | 2022-06-10 | 远景动力技术(江苏)有限公司 | Method for manufacturing cylindrical battery |
| CN216793835U (en) * | 2022-02-08 | 2022-06-21 | 远景动力技术(江苏)有限公司 | Casing, cylindrical battery and cylindrical battery system |
-
2022
- 2022-07-12 CN CN202210814666.5A patent/CN115020924A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101176908A (en) * | 2006-11-06 | 2008-05-14 | 比亚迪股份有限公司 | Riveting method as well as method for coupling electrode pole and cover plate of lithium ion battery |
| CN104904036A (en) * | 2012-12-25 | 2015-09-09 | 株式会社杰士汤浅国际 | Electricity storage element, electricity storage element assembly and method for manufacturing electricity storage element |
| CN206461019U (en) * | 2017-02-13 | 2017-09-01 | 山东巨维新能源股份有限公司 | The aluminum shell column battery of end face flow guiding structure |
| CN214754075U (en) * | 2021-03-11 | 2021-11-16 | 东莞塔菲尔新能源科技有限公司 | Top cover structure of power battery and power battery |
| CN214378639U (en) * | 2021-03-31 | 2021-10-08 | 蜂巢能源科技(无锡)有限公司 | Electricity core apron structure and battery |
| CN113363675A (en) * | 2021-07-02 | 2021-09-07 | 深圳市科达利实业股份有限公司 | Cylindrical battery |
| CN216793835U (en) * | 2022-02-08 | 2022-06-21 | 远景动力技术(江苏)有限公司 | Casing, cylindrical battery and cylindrical battery system |
| CN114497904A (en) * | 2022-02-24 | 2022-05-13 | 中创新航科技股份有限公司 | Battery assembly method and battery |
| CN114614101A (en) * | 2022-03-17 | 2022-06-10 | 远景动力技术(江苏)有限公司 | Method for manufacturing cylindrical battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2453499A1 (en) | Battery module | |
| US20230223626A1 (en) | Sealing assembly for sealing through hole, and method and device for preparing battery cell | |
| CN205248320U (en) | Lithium battery shell and lithium cell | |
| CN116529948A (en) | Battery cell, battery and electricity utilization device | |
| CN221632621U (en) | Battery monomer, battery and power consumption device | |
| CN114597555A (en) | Cylindrical battery and method for manufacturing same | |
| CN117219972B (en) | Current collecting disc, energy storage device and electric equipment | |
| CN115020924A (en) | Rivet, cylindrical battery and battery pack | |
| CN217182288U (en) | Casing and cylindrical battery | |
| CN219017775U (en) | Housing, battery cell, battery and electricity utilization device | |
| CN214848900U (en) | Explosion-proof mechanism of new forms of energy lithium cell | |
| CN217768544U (en) | Cylindrical battery cell, battery and power utilization device | |
| CN217334238U (en) | Shell, battery monomer, battery and consumer | |
| JP2008277154A (en) | Alkaline dry battery | |
| CN114639863B (en) | Cylindrical battery and method for manufacturing the same | |
| EP4199207A1 (en) | Battery cell and manufacturing method and system therefor, battery, and electrical device | |
| CN112382784B (en) | Nested structure lithium ion battery capable of reducing thermal runaway risk | |
| CN114628854A (en) | Cylindrical battery and method for manufacturing the same | |
| CN210805910U (en) | Dual-head chargeable and dischargeable lithium battery with fool-proof function | |
| CN217182376U (en) | Adaptor and cylindrical battery | |
| CN217768545U (en) | Cylindrical battery | |
| CN221102229U (en) | Cylindrical battery with explosion-proof structure | |
| CN217182299U (en) | Casing and cylindrical battery | |
| CN219717023U (en) | Battery monomer, battery and power consumption device | |
| CN220774469U (en) | Battery unit, annular battery, battery pack and electric equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |