CN217387470U - Battery structure subassembly, battery and electric vehicle - Google Patents

Battery structure subassembly, battery and electric vehicle Download PDF

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Publication number
CN217387470U
CN217387470U CN202220579708.7U CN202220579708U CN217387470U CN 217387470 U CN217387470 U CN 217387470U CN 202220579708 U CN202220579708 U CN 202220579708U CN 217387470 U CN217387470 U CN 217387470U
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Prior art keywords
pole
battery
casing
structure assembly
current collecting
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CN202220579708.7U
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邓国友
靳勇
慎晓杰
姚煜
殷晓丰
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Microvast Power Systems Huzhou Co Ltd
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Microvast Power Systems Huzhou Co Ltd
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Priority to CN202220579708.7U priority Critical patent/CN217387470U/en
Priority to PCT/CN2022/110109 priority patent/WO2023173655A1/en
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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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/564—Terminals characterised by their manufacturing process
    • H01M50/567—Terminals characterised by their manufacturing process by fixing means, e.g. screws, rivets or bolts
    • 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

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

本实用新型提供一种电池结构组件，包括壳体和极柱，所述极柱的一端设有止挡部，所述止挡部位于所述壳体外，所述极柱贯穿所述壳体的端面并与所述壳体通过铆接固定；所述电池结构组件还包括压块，所述压块参与铆接，所述压块位于所述极柱上。本实用新型提供的电池结构组件，极柱与壳体通过铆接固定，相较于焊接的固定方式，不仅简化了固定操作，提高了生产效率，而且降低了生产成本。本实用新型还提供一种电池及电动交通工具。

Figure 202220579708

The utility model provides a battery structure assembly, which comprises a casing and a pole, one end of the pole is provided with a stopper, the stopper is located outside the casing, and the pole penetrates through the outer part of the casing. The end face is fixed with the casing by riveting; the battery structure assembly further includes a pressing block, the pressing block is involved in the riveting, and the pressing block is located on the pole post. In the battery structure assembly provided by the utility model, the pole and the casing are fixed by riveting, which not only simplifies the fixing operation, improves the production efficiency, but also reduces the production cost compared with the welding fixing method. The utility model also provides a battery and an electric vehicle.

Figure 202220579708

Description

Battery structure subassembly, battery and electric vehicle
Technical Field
The utility model belongs to the technical field of the battery technique and specifically relates to a battery structure subassembly, battery and electric vehicle are related to.
Background
With the development of electronic technology, lithium ion batteries have the advantages of high specific power, long cycle life, good safety performance, no pollution and the like, so that the lithium ion batteries are widely applied. Lithium ion batteries can be divided into cylindrical batteries, square-shell batteries, soft-package batteries and the like according to the shapes, wherein the cylindrical batteries are concerned more and more, and the application of the cylindrical batteries is also more and more extensive.
Current cylinder battery generally includes the casing, apron and electric core etc, the anodal connecting terminal and the negative connecting terminal of current cylinder battery set up respectively in the relative both ends of cylinder battery, thereby there is certain restriction to the technique in groups of battery, influence arranging and the battery energy density of battery (because anodal connecting terminal and negative connecting terminal set up respectively in the relative both ends of cylinder battery, when the battery is parallelly connected in groups, must put the battery according to the demand of corresponding polarity earlier, not only increased the risk that the mistake was put to the battery, and the quantity of structure spare part has been increased, it is comparatively complicated to make the wiring design, and the production cost is increased, the energy density of battery has been reduced. In addition, the current collecting disc of the cylindrical battery and the pole have long electric connection path and small contact area, so that the heat conducting performance is poor. Therefore, the existing cylindrical battery needs to be structurally improved to solve the problems of complexity in arrangement of battery grouping, production cost and the like, and improve the heat dissipation performance and sealing performance of the battery.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a battery structure subassembly and battery, aim at solving or at least part solve the not enough of above-mentioned background art existence, utmost point post passes through the riveting with the casing and fixes, compares in welded fixed mode, has not only simplified fixed operation, has improved production efficiency, has reduced manufacturing cost moreover.
An embodiment of the utility model provides a battery structure component, which comprises a shell, the battery structure component further comprises a pole, one end of the pole is provided with a stopping part, the stopping part is positioned outside the shell, and the pole penetrates through the end face of the shell and is fixed with the shell through riveting; the battery structure component further comprises a pressing block, the pressing block participates in riveting, namely the pressing block, the pole and the shell are riveted, and the pressing block is located on the pole.
In an achievable manner, the end face of the housing is provided with a through hole, the pole comprises a main body part and a first end and a second end respectively located at two opposite ends of the main body part, the main body part is arranged in the through hole, and the first end and the second end respectively protrude from the main body part in opposite directions to the outside of the through hole; the stopping part is arranged at the first end of the pole, the second end of the pole extends into the shell, and the shell, the first end and the second end are riveted; the portion of the housing that participates in riveting is located between the first end and the second end.
In an achievable form, the compact is provided at the first end and/or the second end of the pole.
In an achievable mode, the pressing block is of an annular structure, and the pressing block is sleeved at the first end and/or the second end of the pole.
In an achievable form, the second end of the pole is formed with a flange, the stop, the flange and the housing being riveted; the portion of the housing that participates in riveting is located between the stopper and the flange.
In an achievable form, the compact is disposed on the pole adjacent the flange, the compact being located between the flange and the housing; or, the briquetting set up in be close to on the utmost point post the position of backstop portion, the briquetting is located backstop portion with between the casing.
In an implementation manner, the battery structure assembly further includes an insulating sealing ring, the insulating sealing ring is sleeved on the pole, and the insulating sealing ring is used for insulating and sealing between the pole and the casing.
In an implementation manner, the battery structure assembly further includes a first current collecting disc located in the housing, and the first current collecting disc is electrically connected with the pole.
In an implementation manner, the first current collecting disc comprises a disc body and an electric connection portion, the electric connection portion is formed by extending and protruding the disc body towards the pole, and the electric connection portion is electrically connected with the pole.
In an implementation manner, a central hole is formed on the pole, the electric connection portion is inserted into the central hole, and the electric connection portion is electrically connected with the central hole.
In an implementable manner, the side walls of the electrical connection contact the inner walls of the central bore to effect electrical connection of the electrical connection to the central bore.
In an implementable manner, the battery structure assembly further comprises a sealing plate in sealing connection with the terminal post, the sealing plate sealing a central aperture on the terminal post.
In one realizable approach, the post is a positive post or a negative post.
Another embodiment of the utility model provides a battery, including above battery structure subassembly.
In an implementation manner, the battery further includes a first current collecting disc, a second current collecting disc, an electric core, and a cover plate, where the first current collecting disc, the second current collecting disc, and the electric core are all disposed in the casing, an opening is disposed at a bottom end of the casing, and the cover plate is disposed at the opening; the two sides of the first current collecting disc are respectively electrically connected with the top end of the battery cell and the pole, and the two sides of the second current collecting disc are respectively electrically connected with the bottom end of the battery cell and the cover plate. In an implementation manner, two sides of the first current collecting disc are respectively in contact with the top end of the battery cell and the terminal to realize electrical connection, and two sides of the second current collecting disc are respectively in contact with the bottom end of the battery cell and the casing to realize electrical connection.
In one implementable manner, the first current collecting disk may be a positive current collecting disk or an negative current collecting disk; the second current collecting plate can also be a positive current collecting plate or a negative current collecting plate. When the first current collecting disc is a positive current collecting disc, the second current collecting disc is a negative current collecting disc; and conversely, when the first current collecting plate is an anode current collecting plate, the second current collecting plate is a cathode current collecting plate.
Another embodiment of the present invention further provides an electric vehicle, including the battery described above.
The utility model provides a battery structure subassembly, utmost point post and casing pass through the riveting fixed, compare in welded fixed mode, have not only simplified fixed operation, have improved production efficiency, have reduced manufacturing cost moreover.
Drawings
Fig. 1 is a schematic cross-sectional view of a battery module according to an embodiment of the present invention.
Fig. 2 is a schematic perspective view of the first current collecting plate of fig. 1.
Fig. 3 is a schematic cross-sectional view of a battery module according to another embodiment of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
The terms of orientation of the upper, lower, left, right, front, back, top, bottom, etc. (if any) referred to in the specification and claims of the present invention are defined as the positions of the structures in the drawings and the positions of the structures relative to each other, and are only for the sake of clarity and convenience in describing the technical solutions. It is to be understood that the use of directional terms should not be taken to limit the scope of the invention as claimed.
As shown in fig. 1, the embodiment of the utility model provides a battery structure assembly, including casing 1 and utmost point post 3, utmost point post 3 is T shape structure, and the one end of utmost point post 3 is equipped with backstop portion 31, and backstop portion 31 is formed by the lateral wall of utmost point post 3 along radial outside protrusion, and backstop portion 31 is located outside casing 1, and utmost point post 3 runs through casing 1's terminal surface and passes through the riveting with casing 1 and fixes. The battery structure component further comprises a pressing block 4, the pressing block 4 participates in riveting, namely the pressing block 4, the pole 3 and the shell 1 are riveted, and the pressing block 4 is located on the pole 3. When riveting, the pole 3 and the press block 4 are embedded.
Specifically, in the embodiment, the pole column 3 and the shell 1 are fixed by riveting, so that compared with a welding fixing method, the operation is simplified, the production efficiency is improved, and the production cost is reduced.
As an embodiment, the briquette 4 may be an aluminum briquette. Of course, in other embodiments, the compact 4 may be made of other materials.
As shown in fig. 1, as an embodiment, the end surface of the housing 1 is provided with a through hole 11, the terminal 3 includes a main body portion and a first end and a second end respectively located at two opposite ends of the main body portion, the main body portion is disposed in the through hole 11, and the first end and the second end respectively extend and protrude from the main body portion in opposite directions to the outside of the through hole 11 (in this embodiment, the first end extends and protrudes from the main body portion upwards, and the second end extends and protrudes from the main body portion downwards). Backstop portion 31 sets up in the first end of utmost point post 3, and the second end of utmost point post 3 stretches into to casing 1 in, casing 1, first end and the riveting of second end three, and casing 1 participates in the part of riveting and is located between first end and the second end.
As shown in fig. 1, as an embodiment, the compact 4 is disposed at the second end of the pole 3 (i.e., the compact 4 fills the lower end of the pole 3). Of course, in other embodiments, the compact 4 may be disposed at the first end of the pole 3, or disposed at both the first end and the second end of the pole 3.
As shown in fig. 1, as an embodiment, the pressing block 4 has a ring structure, and the pressing block 4 is sleeved on the second end of the pole 3. Of course, in other embodiments, the pressing block 4 may also be sleeved on the first end of the pole 3, or both the first end and the second end of the pole 3.
As shown in fig. 1, as an embodiment, the second end of the pole 3 is formed with a flange 32, the flange 32 is formed by the sidewall of the pole 3 protruding outward in the radial direction, the flange 32 is located in the housing 1, and the stopper 31 and the flange 32 are riveted with the housing 1; the part of the housing 1 that participates in the riveting is located between the stopper 31 and the flange 32. The pressing block 4 is sleeved on the pole 3 at a position close to the flange 32, and the pressing block 4 is positioned between the flange 32 and the shell 1. During caulking, the retainer 4 is fitted to the flange 32. Of course, in other embodiments, the pressing block 4 may also be sleeved on the pole 3 at a position close to the stopping portion 31, and at this time, the pressing block 4 is located between the stopping portion 31 and the housing 1.
Specifically, the stopper 31 is a structure of the pole post 3 itself (i.e. the stopper 31 is present before the pole post 3 and the housing 1 are riveted), and the flange 32 is formed when the pole post 3 and the housing 1 are riveted. Specifically, as shown in fig. 1, in the present embodiment, when the pole 3 and the housing 1 are riveted, the pole 3 with a T-shaped structure is inserted into the through hole 11 of the housing 1 from top to bottom, and then the lower end of the pole 3 is mechanically pressed (such as spin riveting) and flattened to form the flange 32; in the process of pressing and flattening the pole column 3 to form the flange 32, an upsetting effect (namely, the length of the pole column 3 is shortened and the diameter of the pole column 3 is increased) is formed on the pole column 3, so that the pole column 3 and the shell 1 are fixed, and the pole column 3 and the shell 1 are riveted. Wherein, backstop portion 31 and flange 32 all play limiting displacement, and backstop portion 31 and flange 32 cooperate and compress tightly casing 1 to prevent that utmost point post 3 from droing in the through-hole 11 on casing 1. Meanwhile, when the pole 3 and the case 1 are riveted, the insulating seal ring 51 is compressed in the process of forming the flange 32 of the pole 3, so that the gap between the stopper portion 31 and the case 1 is completely filled with the insulating seal ring 51, and the sealing performance of the battery is improved.
As shown in fig. 1 and fig. 2, as an embodiment, the battery structural assembly further includes a first current collecting plate 6, the first current collecting plate 6 is disposed in the housing 1, and the first current collecting plate 6 is in contact with the pole 3 to electrically connect the first current collecting plate 6 and the pole 3.
As shown in fig. 1 and fig. 2, as an embodiment, the first current collecting plate 6 includes a plate body 61 and an electrical connection portion 62, the electrical connection portion 62 extends and protrudes from the plate body 61 toward the pole 3, the plate body 61 contacts with an end surface of the battery cell 8, and the electrical connection portion 62 contacts with the pole 3 to electrically connect the electrical connection portion 62 with the pole 3.
As shown in fig. 1 and 2, as an embodiment, a center hole 33 is formed on the pole 3, an electrical connection portion 62 is inserted into the center hole 33, and the electrical connection portion 62 is electrically connected to the center hole 33 to electrically connect the electrical connection portion 62 and the pole 3.
As shown in fig. 1 and 2, as an embodiment, a side wall of the electrical connection portion 62 contacts an inner wall of the central hole 33 to electrically connect the electrical connection portion 62 and the central hole 33.
Specifically, in the present embodiment, the cross section of the electrical connection portion 62 is a circular structure, and the electrical connection portion 62 is a hollow truncated cone-shaped structure with a diameter that is gradually reduced in a direction close to the pole 3. Through set up electric connection portion 62 on first current collecting tray 6 to the area of contact of increase first current collecting tray 6 and utmost point post 3 makes the inside heat that produces of electric core 8 can derive from utmost point post 3 fast, thereby improves the thermal runaway that leads to greatly because of electric core 8 calorific capacity when big multiplying power charges and discharges. Of course, as shown in fig. 3, in other embodiments, the first collecting disc 6 may also have a flat disc-shaped structure, the pole post 3 is a solid block (i.e. the pole post 3 is not provided with the central hole 33), and the first collecting disc 6 contacts with the bottom surface of the pole post 3.
As shown in fig. 1, as an embodiment, the battery structural assembly further includes an insulating sealing ring 51, the insulating sealing ring 51 is sleeved on the electrode post 3, and the insulating sealing ring 51 is used for insulating and sealing between the electrode post 3 and the housing 1.
As shown in fig. 1, in one embodiment, an insulating gasket 51 is disposed in the through hole 11, and the insulating gasket 51 is located between the outer wall of the post 3 and the inner wall of the through hole 11.
Specifically, in this embodiment, the insulating sealing ring 51 has a T-shaped structure (of course, in other embodiments, the insulating sealing ring 51 may also have an O-shaped structure, etc.), a part of the insulating sealing ring 51 is located in the through hole 11 (i.e., located between the outer sidewall of the pole 3 and the inner wall of the through hole 11), and another part of the insulating sealing ring 51 is sandwiched between the stopper portion 31 and the end surface of the housing 1, so that the insulating sealing ring 51 can achieve a good sealing effect on the sealing between the pole 3 and the housing 1, and can isolate the pole 3 and the housing 1 to prevent the pole 3 and the housing 1 from conducting electricity. Meanwhile, when the pole 3 is riveted with the housing 1, the stopping portion 31 can extrude the insulating sealing ring 51 in the process of upsetting the pole 3 by pressurizing the pole 3, so that the insulating sealing ring 51 between the stopping portion 31 and the housing 1 is pressed, and the sealing effect is further improved.
As shown in fig. 1, as an embodiment, the battery structure assembly further includes an insulating ring 52, the insulating ring 52 is disposed between the stopping portion 31 and the end surface of the case 1, and the insulating ring 52 is used for isolating the pole 3 from the case 1 to prevent the pole 3 and the case 1 from conducting electricity.
Specifically, in the present embodiment, the insulating seal ring 51 is a small circular ring structure with an open center, the insulating ring 52 is a large circular ring structure with an open center, and the insulating ring 52 is disposed around the outer periphery of the insulating seal ring 51.
As shown in fig. 1, the battery structural assembly further includes an insulating spacer 53, and the insulating spacer 53 is disposed between the compact 4 and the end surface of the housing 1.
Specifically, in the present embodiment, a part of the insulating spacer 53 is located between the compact 4 and the end surface of the case 1, and another part is located between the first current collecting plate 6 and the end surface of the case 1, thereby preventing the compact 4 and the case 1 from being electrically conductive, and preventing the first current collecting plate 6 from being electrically conductive with the case 1.
As shown in fig. 1, as an embodiment, the battery structure assembly further includes a sealing plate 9 (the sealing plate 9 may be an explosion-proof plate), the sealing plate 9 is connected to the top surface of the terminal 3 in a sealing manner, and the sealing plate 9 seals the central hole 33 of the terminal 3.
As shown in fig. 1, the embodiment of the present invention further provides a battery, especially for a cylindrical battery, which includes the above battery structure assembly.
As shown in fig. 1, as an embodiment, the battery further includes a battery cell 8 and a first current collecting plate 6, the battery cell 8 and the first current collecting plate 6 are both disposed in the casing 1, the first current collecting plate 6 is located between the top end of the battery cell 8 and the terminal 3, and two sides of the first current collecting plate 6 are electrically connected to the top end of the battery cell 8 and the terminal 3, respectively.
As shown in fig. 1, as an embodiment, both sides of the first current collecting plate 6 are respectively in contact with the top end of the battery cell 8 and the pole 3 to realize electrical connection.
As shown in fig. 1 and fig. 2, as an embodiment, the first current collecting plate 6 includes a plate body 61 and an electrical connection portion 62, the electrical connection portion 62 extends and protrudes from the plate body 61 toward the pole 3, and the plate body 61 contacts with an end surface of the battery cell 8; the pole 3 is provided with a center hole 33, the electric connection portion 62 is inserted into the center hole 33, and the side wall of the electric connection portion 62 is in contact with the inner wall of the center hole 33.
As shown in fig. 1, as an embodiment, the battery further includes a cover plate 2 and a second current collecting plate 7, the case 1 has a cylindrical groove structure, an opening 12 is formed at the bottom end of the case 1, the cover plate 2 is fixed at the opening 12, and the cover plate 2 is electrically connected to the case 1. The second current collecting disc 7 is arranged in the shell 1, the second current collecting disc 7 is located between the bottom end of the battery cell 8 and the cover plate 2, and two sides of the second current collecting disc 7 are electrically connected with the bottom end of the battery cell 8 and the cover plate 2 respectively.
As shown in fig. 1, as an embodiment, both sides of the second current collecting plate 7 are respectively in contact with the bottom end of the battery cell 8 and the cap plate 2 to achieve electrical connection.
As shown in fig. 1, as an embodiment, a positive tab 81 and a negative tab 82 are respectively disposed at two ends of the battery cell 8, the terminal 3 is a positive post, the first current collecting plate 6 is a positive current collecting plate, the second current collecting plate 7 is a negative current collecting plate, two sides of the first current collecting plate 6 are respectively in contact with the positive tab 81 of the battery cell 8 and the terminal 3, and two sides of the second current collecting plate 7 are respectively in contact with the negative tab 82 of the battery cell 8 and the cover plate 2. Of course, in other embodiments, it may be: the pole 3 is a negative pole, the first current collecting disc 6 is a negative current collecting disc, the second current collecting disc 7 is a positive current collecting disc, two sides of the first current collecting disc 6 are respectively contacted with the negative pole lug 82 of the battery cell 8 and the pole 3, and two sides of the second current collecting disc 7 are respectively contacted with the positive pole lug 81 of the battery cell 8 and the cover plate 2.
Specifically, when the terminal 3 is a positive terminal, the housing 1 may be a steel shell (or may be made of other materials), in which case the terminal 3 serves as a positive electrical connection terminal of the battery, and the housing 1 and the cover plate 2 serve as negative electrical connection terminals of the battery; when the post 3 is a negative post, the housing 1 may be an aluminum case, and the post 3 serves as a negative electrical connection terminal of the battery, and the housing 1 and the cover plate 2 serve as a positive electrical connection terminal of the battery. In the embodiment, the end surfaces of the terminal 3 and the housing 1 are respectively used as the positive electrode electrical connection terminal and the negative electrode electrical connection terminal (or the terminal 3 is used as the negative electrode electrical connection terminal, and the end surface of the housing 1 is used as the positive electrode electrical connection terminal), so that the positive electrode and the negative electrode of the battery are led out to the same side of the battery (for example, the positive electrode and the negative electrode of the battery are led out to the top end of the battery in the embodiment).
As shown in fig. 1, as an embodiment, the positive tab 81 and the negative tab 82 of the battery cell 8 are both designed as full tabs, and the first current collecting disk 6 and the positive tab 81, and the second current collecting disk 7 and the negative tab 82 may be fixed by welding.
In one embodiment, an electrolyte solution is further disposed in the casing 1, so that the battery can be charged and discharged through electrochemical reactions between the positive electrode tab and the negative electrode tab of the battery cell 8 and the electrolyte solution. The electrolyte solution may be composed of organic solvents such as EC, PC, DEC, EMC and organic solvents such as LiPF 6 Or LiBF 4 The electrolyte solution may be in a liquid, solid or gel state, etc.
The embodiment of the utility model provides an advantage of battery structure subassembly and battery lies in:
1. the terminal 3 is riveted with the shell 1, so that the operation is simplified, the production efficiency is improved, and the production cost is reduced;
2. the end surfaces of the pole 3 and the shell 1 are respectively used as a positive electrode electric connecting terminal and a negative electrode electric connecting terminal (or the pole 3 is used as a negative electrode electric connecting terminal, and the end surface of the shell 1 is used as a positive electrode electric connecting terminal), so that the positive electrode and the negative electrode of the battery are led out to the same side of the battery, grouping of the battery is facilitated, arrangement of the battery cells 8 can be facilitated, the number of structural parts is reduced when the battery is grouped, wiring design of the BMS is simplified, cost is reduced, meanwhile, arrangement of the battery is more compact, and energy density of the battery is improved;
3. the electric connection part 62 is arranged on the first current collecting disc 6, so that the contact area between the first current collecting disc 6 and the pole 3 is increased, heat generated inside the battery cell 8 can be rapidly led out from the pole 3, and thermal runaway caused by large heat productivity of the battery cell 8 during high-rate charge and discharge is improved;
4. the insulating sealing ring 51 has good sealing performance (when the pole 3 is riveted with the shell 1, the pole 3 can extrude the insulating sealing ring 51 when being upset, so that the insulating sealing ring 51 is pressed, the sealing effect of the insulating sealing ring 51 is improved), the insulating sealing ring is durable for a long time, the problem of liquid leakage of the battery in long-term use can be prevented, and the service life of the battery is prolonged;
5. by arranging the pressing block 4, the insulating gasket 53 can be prevented from being fractured or crushed in the upsetting process of the pole 3, so that the sealing performance of the battery is influenced. During upsetting, the insulating gasket 53 is easily crushed or cracked due to the small contact area between the bottom of the formed flange 32 and the insulating gasket 53. After the pressing block 4 is added, the contact area between the pressing block 4 and the insulating gasket 53 is increased because the surface area of the pressing block 4 is larger than that of the flange 23; in addition, because the pressing block 4 has certain elasticity, the pressing block 4 can further buffer the pressure on the insulating spacer 53 during the upsetting process. Therefore, by arranging the pressing block 4, the contact area between the pressing block and the insulating gasket 53 is increased, the buffering effect is achieved, the pressure on the insulating gasket 53 in the upsetting process is greatly reduced, and the sealing performance of the battery is improved.
The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (15)

1.一种电池结构组件，包括壳体(1)，其特征在于，所述电池结构组件还包括极柱(3)，所述极柱(3)的一端设有止挡部(31)，所述止挡部(31)位于所述壳体(1)外，所述极柱(3)贯穿所述壳体(1)的端面并与所述壳体(1)通过铆接固定；所述电池结构组件还包括压块(4)，所述压块(4)参与铆接，所述压块(4)位于所述极柱(3)上。1. A battery structure assembly, comprising a casing (1), characterized in that the battery structure assembly further comprises a pole (3), and one end of the pole (3) is provided with a stopper (31), The stopper (31) is located outside the casing (1), the pole (3) penetrates the end face of the casing (1) and is fixed with the casing (1) by riveting; the The battery structure assembly further comprises a pressing block (4), the pressing block (4) is involved in riveting, and the pressing block (4) is located on the pole (3). 2.如权利要求1所述的电池结构组件，其特征在于，所述壳体(1)的端面设有通孔(11)，所述极柱(3)包括主体部及分别位于所述主体部相对两端的第一端和第二端，所述主体部设置于所述通孔(11)内，所述第一端和所述第二端由所述主体部分别以相反的方向向所述通孔(11)外延伸凸出；所述止挡部(31)设置于所述极柱(3)的第一端，所述极柱(3)的第二端伸入至所述壳体(1)内，所述壳体(1)、所述第一端和所述第二端三者铆接；所述壳体(1)参与铆接的部分位于所述第一端和所述第二端之间。2. The battery structure assembly according to claim 1, characterized in that the end face of the casing (1) is provided with a through hole (11), and the pole (3) comprises a main body part and two parts located in the main body respectively. The first end and the second end of the two opposite ends of the main body part are arranged in the through hole (11), and the first end and the second end are respectively directed toward the opposite ends by the main body part in opposite directions. The through hole (11) extends and protrudes outward; the stopper portion (31) is arranged on the first end of the pole (3), and the second end of the pole (3) extends into the shell In the body (1), the casing (1), the first end and the second end are riveted; the part of the casing (1) involved in riveting is located at the first end and the second end. between the two ends. 3.如权利要求2所述的电池结构组件，其特征在于，所述压块(4)设置于所述极柱(3)的第一端和/或第二端。3. The battery structure assembly according to claim 2, wherein the pressing block (4) is disposed on the first end and/or the second end of the pole (3). 4.如权利要求3所述的电池结构组件，其特征在于，所述压块(4)为环形结构，所述压块(4)套设于所述极柱(3)的第一端和/或第二端。4 . The battery structure assembly according to claim 3 , wherein the pressing block ( 4 ) is an annular structure, and the pressing block ( 4 ) is sleeved on the first end and the first end of the pole ( 3 ). 5 . / or second end. 5.如权利要求2所述的电池结构组件，其特征在于，所述极柱(3)的第二端形成有凸缘(32)，所述止挡部(31)、所述凸缘(32)与所述壳体(1)形成铆接；所述壳体(1)参与铆接的部分位于所述止挡部(31)和所述凸缘(32)之间。5. The battery structure assembly according to claim 2, wherein a flange (32) is formed at the second end of the pole (3), the stopper (31), the flange ( 32) Form riveting with the casing (1); the part of the casing (1) participating in the riveting is located between the stopper (31) and the flange (32). 6.如权利要求5所述的电池结构组件，其特征在于，所述压块(4)设置于所述极柱(3)上靠近所述凸缘(32)的位置，所述压块(4)位于所述凸缘(32)与所述壳体(1)之间；或者，所述压块(4)设置于所述极柱(3)上靠近所述止挡部(31)的位置，所述压块(4)位于所述止挡部(31)与所述壳体(1)之间。6 . The battery structure assembly according to claim 5 , wherein the pressing block ( 4 ) is arranged on the pole ( 3 ) near the flange ( 32 ), and the pressing block ( 6 . 4) Located between the flange (32) and the housing (1); position, the pressing block (4) is located between the stopper (31) and the housing (1). 7.如权利要求1所述的电池结构组件，其特征在于，所述电池结构组件还包括绝缘密封圈(51)，所述绝缘密封圈(51)套设于所述极柱(3)上，所述绝缘密封圈(51)用于所述极柱(3)与所述壳体(1)之间的绝缘和密封。7. The battery structure assembly according to claim 1, characterized in that, the battery structure assembly further comprises an insulating sealing ring (51), and the insulating sealing ring (51) is sleeved on the pole (3) , the insulating sealing ring (51) is used for insulation and sealing between the pole (3) and the casing (1). 8.如权利要求1所述的电池结构组件，其特征在于，所述电池结构组件还包括第一集流盘(6)，所述第一集流盘(6)位于所述壳体(1)内，所述第一集流盘(6)与所述极柱(3)电连接。8. The battery structure assembly according to claim 1, characterized in that, the battery structure assembly further comprises a first current collecting plate (6), and the first current collecting plate (6) is located in the casing (1) ), the first current collecting disc (6) is electrically connected to the pole (3). 9.如权利要求8所述的电池结构组件，其特征在于，所述第一集流盘(6)包括盘体(61)和电连接部(62)，所述电连接部(62)由所述盘体(61)延伸凸出形成，所述电连接部(62)与所述极柱(3)电连接。9. The battery structure assembly according to claim 8, wherein the first current collecting disc (6) comprises a disc body (61) and an electrical connection part (62), and the electrical connection part (62) is formed by The disc body (61) is formed by extending and protruding, and the electrical connection part (62) is electrically connected with the pole post (3). 10.如权利要求9所述的电池结构组件，其特征在于，所述极柱(3)上设有中心孔(33)，所述电连接部(62)插入在所述中心孔(33)内，所述电连接部(62)与所述中心孔(33)电连接。10. The battery structure assembly according to claim 9, wherein a central hole (33) is provided on the pole (3), and the electrical connection portion (62) is inserted into the central hole (33) Inside, the electrical connection portion (62) is electrically connected with the central hole (33). 11.如权利要求10所述的电池结构组件，其特征在于，所述电池结构组件还包括密封片(9)，所述密封片(9)与所述极柱(3)密封连接，所述密封片(9)密封所述极柱(3)上的中心孔(33)。11. The battery structure assembly according to claim 10, characterized in that, the battery structure assembly further comprises a sealing sheet (9), the sealing sheet (9) is sealedly connected to the pole (3), and the The sealing sheet (9) seals the central hole (33) on the pole post (3). 12.如权利要求1-11中任一项所述的电池结构组件，其特征在于，所述极柱(3)为正极柱或负极柱。12. The battery structure assembly according to any one of claims 1-11, characterized in that, the pole (3) is a positive pole or a negative pole. 13.一种电池，其特征在于，包括如权利要求1-12中任一项所述的电池结构组件。13. A battery, characterized in that it comprises the battery structure assembly according to any one of claims 1-12. 14.如权利要求13所述的电池，其特征在于，所述电池还包括第一集流盘(6)、第二集流盘(7)、电芯(8)和盖板(2)，所述第一集流盘(6)、所述第二集流盘(7)和所述电芯(8)均设置于所述壳体(1)内，所述壳体(1)的底端设有开口(12)，所述盖板(2)设置在所述开口(12)处；所述第一集流盘(6)的两侧分别与所述电芯(8)的顶端和所述极柱(3)电连接，所述第二集流盘(7)的两侧分别与所述电芯(8)的底端和所述盖板(2)电连接。14. The battery according to claim 13, characterized in that, the battery further comprises a first current collecting plate (6), a second current collecting plate (7), a battery cell (8) and a cover plate (2), The first current collecting disc (6), the second current collecting disc (7) and the battery core (8) are all arranged in the casing (1), and the bottom of the casing (1) The end is provided with an opening (12), and the cover plate (2) is arranged at the opening (12); the two sides of the first current collecting plate (6) are respectively connected with the top and the top of the cell (8). The pole (3) is electrically connected, and the two sides of the second current collecting plate (7) are respectively electrically connected to the bottom end of the battery core (8) and the cover plate (2). 15.一种电动交通工具，其特征在于，包括如权利要求13或14中任一项所述的电池。15. An electric vehicle, characterized by comprising the battery according to any one of claims 13 or 14.
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Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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JP5508768B2 (en) * 2009-06-30 2014-06-04 日立ビークルエナジー株式会社 Sealed battery
CN112151732A (en) * 2020-09-30 2020-12-29 星恒电源(滁州)有限公司 Round lithium battery and preparation method thereof
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CN114937854B (en) * 2022-05-24 2025-12-09 微宏动力系统（湖州）有限公司 Battery pack, battery and electric vehicle
WO2025007901A1 (en) * 2023-07-03 2025-01-09 蜂巢能源科技股份有限公司 Assembling method for cylindrical battery, and cylindrical battery
CN118610704A (en) * 2024-08-08 2024-09-06 比亚迪股份有限公司 Battery cover assembly, battery, battery pack and electrical equipment

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