CN220121971U - Cap assembly of all-tab battery and all-tab battery - Google Patents
Cap assembly of all-tab battery and all-tab battery Download PDFInfo
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- CN220121971U CN220121971U CN202222567449.9U CN202222567449U CN220121971U CN 220121971 U CN220121971 U CN 220121971U CN 202222567449 U CN202222567449 U CN 202222567449U CN 220121971 U CN220121971 U CN 220121971U
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Abstract
The utility model provides a cap assembly of a full-tab battery and the full-tab battery, wherein the cap assembly comprises a current collecting disc, a positive electrode conductive column, a cover plate, a rubber plug and a cap; the current collecting disc is arranged at one end of an electric core in the battery, the current collecting disc is electrically connected with an anode full-tab of the electric core, a first through hole is formed in the current collecting disc, a second through hole is formed in the anode conductive column, a third through hole is formed in the cover plate, the first through hole, the second through hole and the third through hole are opposite, one end of the anode conductive column abuts against the current collecting disc and is welded and connected with the cover plate, the other end of the anode conductive column is welded and connected with the cover plate, a rubber plug penetrates through the first through hole, the second through hole and the third through hole, the rubber plug seals the first through hole, the second through hole and the third through hole, and the cover cap is arranged on the cover plate. The utility model can avoid the problems of inconvenient connection and installation and limited conductive sectional area of the sheet-shaped tab, has simple structure, is convenient to operate and is convenient for high-rate operation of electric energy.
Description
[ field of technology ]
The utility model relates to the technical field of batteries, in particular to a cap assembly of a full-tab battery and the full-tab battery.
[ background Art ]
Along with the comprehensive popularization of the full-lug battery, the structural form of the full-lug battery is also good in kernel intelligence and various in patterns, but most of the full-lug battery is unsatisfactory in conductive interface treatment. At present, the common mode that the positive electrode and the negative electrode of the full-tab battery are connected with the cover bottom is that the current collector is connected with a single tab which exceeds the conventional width and is thickened, and the connection mode has the defect that the conductive sectional area of the tab is limited, namely the tab has limitation, because the tab needs to be folded back for multiple times, once the tab is overturned, the operation inconvenience is brought about, the rate capability of charge and discharge is limited, the tab body and even the battery are easy to heat after the limit of charge and discharge is exceeded, the tab body and even the battery are overheated due to overcurrent, and the serious consequences of tab burning and battery explosion can be caused due to overheat.
In view of the foregoing, it is desirable to provide a novel cap assembly for a full tab battery and a full tab battery to overcome the above-mentioned drawbacks.
[ utility model ]
The utility model aims to provide a cap assembly of a full-tab battery and the full-tab battery, which can avoid the problems of inconvenient connection and installation and limited conductive sectional area of a sheet-shaped tab, and have the advantages of simple structure, convenient operation and convenient high-rate operation of electric energy.
In order to achieve the above objective, in a first aspect, the present utility model provides a cap assembly of a full-tab battery, including a current collecting disc, a positive electrode conductive post, a cover plate, a rubber plug and a cap; the battery is characterized in that the current collecting disc is arranged at one end of an electric core in the battery, the current collecting disc is electrically connected with an anode all-lug of the electric core, a first through hole is formed in the current collecting disc, a second through hole is formed in the anode conductive column, a third through hole is formed in the cover plate, the first through hole, the second through hole and the third through hole are opposite, one end of the anode conductive column abuts against the current collecting disc and is in welded connection, the other end of the anode conductive column is in welded connection with the cover plate, the rubber plug penetrates through the first through hole, the second through hole and the third through hole, the rubber plug seals the first through hole, the second through hole and the third through hole, and the cover cap is arranged on the cover plate.
In a preferred embodiment, the positive electrode conductive post includes a first end face and a second end face opposite to each other, the first end face abuts against the central position of the current collecting disc, and the second end face is welded with the cover plate.
In a preferred embodiment, the current collecting disc is provided with a plurality of protruding blocks, the protruding blocks are arranged along the direction from the central position to the edge position of the current collecting disc, and one end, close to the central position of the current collecting disc, of each protruding block abuts against the positive electrode conductive post.
In a preferred embodiment, the rubber plug includes a clamping portion and an insertion portion connected to the clamping portion, the clamping portion is clamped at one end of the positive electrode conductive column, which is close to the cover plate, and the insertion portion passes through the first through hole, the second through hole and the third through hole.
In a preferred embodiment, the solar cell further comprises an insulating pad, the insulating pad is provided with a fourth through hole, the insulating pad is arranged between the current collecting disc and the cover plate, and the positive electrode conductive post penetrates through the fourth through hole.
In a preferred embodiment, the cover plate is provided with an annular groove, the annular groove surrounds the third through hole, and the cap is fixed in the annular groove.
In a preferred embodiment, the cover plate is stamped with an explosion proof wire.
In a second aspect, the present utility model further provides a full-tab battery, including a housing having an opening at one end, a battery cell accommodated in the housing, and a cap assembly of the full-tab battery according to any one of the first aspect, where the cap assembly seals one end of the opening of the housing.
In a preferred embodiment, an insulating seal ring is further included, the insulating seal ring being located between the housing and a cover plate in the cap assembly of the full tab battery.
In a preferred embodiment, a roller groove is rolled at a position, close to the end part, of the shell, the insulating sealing ring is clamped between the roller groove and the end part, a clamping groove is formed in the insulating sealing ring, and the edge of the cover plate is clamped in the clamping groove.
Compared with the prior art, the cap assembly of the all-tab battery and the all-tab battery provided by the utility model have the advantages that the current collecting disc is electrically connected with the all-tab of the positive electrode of the battery core, one end of the positive electrode conductive post is propped against the current collecting disc, the other end of the positive electrode conductive post is in welded connection with the cover plate, namely, the positive electrode conductive post is positioned between the current collecting disc and the cover plate, two end faces of the positive electrode conductive post are respectively in welded connection with the current collecting disc and the cover plate, the positive electrode conductive post realizes the electrical connection between the current collecting disc and the cover plate, the cap is covered on the cover plate, and further, the conductive sectional area of the joint of the positive electrode conductive post and the cover plate is far more than that of the sheet-shaped tab, the problems of inconvenient connection and installation and limited conductive sectional area of the sheet-shaped tab can be avoided, the structure is simple, the operation is convenient, and the high-magnification operation of electric energy is convenient. And the first through hole has been seted up to the mass flow dish, and the second through hole has been seted up to anodal conductive column, and the apron has been seted up the third through hole, and first through hole, second through hole and third through hole are relative, and the plug passes first through hole, second through hole and third through hole and the plug can be sealed with first through hole, second through hole and third through hole, and the plug can effectively block the vaporific volatilization of battery inside electrolyte, improves battery capacity and holds ability.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a combined three-dimensional structure diagram of a full tab battery provided by the utility model;
fig. 2 is an exploded perspective view of the full tab battery provided by the present utility model;
fig. 3 is a perspective view of a cap assembly of the full tab battery provided by the present utility model;
fig. 4 is a plan view of a full tab battery according to the present utility model;
fig. 5 is a partial plan view structural diagram of the full tab battery provided by the present utility model.
[ detailed description ] of the utility model
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.
Please refer to fig. 1 and fig. 2, which are perspective view of a full tab battery 200 according to the present utility model. The full-tab battery 200 comprises the cap assembly 100, the cap assembly 100 is applied to the full-tab battery 200, the problems of inconvenient connection and installation and limited conductive sectional area of the sheet-shaped tab can be avoided, the high-rate operation of electric energy is convenient, and the use safety of the battery can be improved.
Referring to fig. 3 to 5, the cap assembly 100 of the full tab battery includes a current collecting plate 10, a positive electrode conductive post 20, a cover plate 30, a rubber plug 40 and a cap 50. Specifically, the current collecting plate 40 is disposed at one end of the inner battery core 210, the current collecting plate 10 is electrically connected with the positive electrode full tab of the inner battery core 210, the current collecting plate 10 is provided with a first through hole 101, the positive electrode conductive post 20 is provided with a second through hole 201, the cover plate 30 is provided with a third through hole 301, the positions of the first through hole 101, the second through hole 102 and the third through hole 103 are opposite, one end of the positive electrode conductive post 20 abuts against the current collecting plate 10 and is in welded connection, the other end of the positive electrode conductive post 20 is in welded connection with the cover plate 30, the rubber plug 40 penetrates through the first through hole 101, the second through hole 102 and the third through hole 103, the rubber plug 40 seals the first through hole 101, the second through hole 102 and the third through hole 103, and the cover cap 50 is covered on the cover plate 30.
It can be understood that the positive electrode conductive post 20 is located between the current collecting plate 10 and the cover plate 30, and two end faces of the positive electrode conductive post 20 are respectively welded with the current collecting plate 10 and the cover plate 30, the positive electrode conductive post 20 realizes the electrical connection between the current collecting plate 10 and the cover plate 30, the cap 50 is covered on the cover plate 30, and then the positive electrode is led out of the battery positive electrode through the positive electrode full tab, the conductive sectional area of the joint of the positive electrode conductive post 20 and the cover plate 30 far exceeds the sheet tab, the structure is simple, the operation is convenient, and the high-magnification operation of electric energy is convenient. And, first through-hole 101, second through-hole 102 and third through-hole 103 have been seted up respectively to current collecting tray 10, anodal conductive post 20, apron 30, and plug 40 passes first through-hole 101, second through-hole 102 and third through-hole 103 and plug 40 can seal first through-hole 101, second through-hole 102 and third through-hole 103, and plug 40 is the intervention type glue nail structure, adopts the vaporific volatilization of the inside electrolyte of intervention type glue nail can effectively be blocked to the adoption, improves battery capacity and holds ability.
Therefore, in the cap assembly 100 of the full-tab battery provided by the utility model, the current collecting disc 10 is electrically connected with the full-tab of the positive electrode of the battery core 210, one end of the positive electrode conductive post 20 abuts against the current collecting disc 10, the other end of the positive electrode conductive post 20 is welded with the cover plate 30, namely, the positive electrode conductive post 20 is positioned between the current collecting disc 10 and the cover plate 30, two end faces of the positive electrode conductive post 20 are respectively welded with the current collecting disc 10 and the cover plate 30, the positive electrode conductive post 20 realizes the electrical connection between the current collecting disc 10 and the cover plate 30, the cap 50 is covered on the cover plate 30, and further, the conductive sectional area of the connection part of the positive electrode conductive post 20 and the cover plate 30 is far more than that of the sheet-shaped tab, so that the problems of inconvenient connection and installation and limited conductive sectional area of the sheet-shaped tab can be avoided, the structure is simple, the operation is convenient, and the high-magnification operation of electric energy is convenient. In addition, the current collecting disc 10 is provided with a first through hole 101, the positive electrode conductive column 20 is provided with a second through hole 201, the cover plate 30 is provided with a third through hole 301, the positions of the first through hole 101, the second through hole 102 and the third through hole 103 are opposite, the rubber plug 40 penetrates through the first through hole 101, the second through hole 102 and the third through hole 103, the rubber plug 40 can seal the first through hole 101, the second through hole 102 and the third through hole 103, the rubber plug 40 can effectively block vaporific volatilization of electrolyte in a battery, and capacity retention capacity of the battery is improved.
The collecting tray 10 has a circular sheet-like structure, and the first through hole 101 is located at the center of the collecting tray 10. The collecting disc 10 is provided with a plurality of protruding blocks 11, the protruding blocks 11 are arranged along the direction from the central position to the edge position of the collecting disc 10 (namely, the radial direction of the collecting disc), and the protruding blocks 11 are beneficial to positioning during welding. In the present embodiment, the number of the bumps 11 is four, and the four bumps 11 are symmetrically arranged.
The positive electrode conductive post 20 is a cylinder, and comprises a first end face 202 and a second end face 203 which are opposite, the first end face 202 and the second end face 203 are both round, the second through hole 201 penetrates through the first end face 202 and the second end face 203, the first end face 202 is welded at the central position of the current collecting disc 10, one end, close to the central position of the current collecting disc, of the plurality of protruding blocks 11 abuts against the positive electrode conductive post 20, positioning and welding of the positive electrode conductive post 20 are facilitated, the second end face 203 is welded at the central position of the cover plate 30, the positive electrode conductive post 20 and the cover plate 30 are connected through a central guide post structure, the conductive cross section area of the central guide post structure greatly exceeds that of a sheet-shaped electrode lug structure, the conductive capacity is multiple times that of the sheet-shaped electrode lug structure, and high-magnification operation of electric energy is facilitated. It will be appreciated that the current collecting plate 10 and the cover plate 30 may be provided with a welding groove at the welding position, which further facilitates welding.
The cover plate 30 is in a circular sheet structure, the third through hole 301 is located at the center of the cover plate 30, and specifically, the cover plate 30 is further provided with an annular groove 302, the annular groove 302 surrounds the third through hole 301, and the annular groove 302 is used for accommodating the cap 40. It will be appreciated that the cover plate 30 is also stamped with an explosion-proof line (not shown) which opens timely to release pressure when the internal pressure of the battery exceeds 2.2kpa, ensuring the safety of the battery.
The rubber plug 40 includes a holding portion 41 and an insertion portion 42 connected to the holding portion 41, the holding portion 41 is held at one end (i.e., a first end surface 202) of the positive electrode conductive post 20 near the cover plate 30, and the insertion portion 42 passes through the first through hole 101, the second through hole 102 and the third through hole 103. In this embodiment, for example, the electrolyte may be injected through the first through hole 101, the second through hole 102 and the third through hole 103, and then the first through hole 101, the second through hole 102 and the third through hole 103 are plugged by the rubber plug 40, so that the vaporization of the electrolyte in the battery can be effectively blocked by the intervening rubber nail, and the capacity retention capability of the battery can be improved.
The cap 50 is used for leading out the positive electrode of the full-tab battery, and the cap 50 is fixed in the annular groove 302. Specifically, the cap 50 includes a contact portion 51 and a flange 52 formed by extending an edge of the contact portion 51, and the flange 52 is fixed in the annular groove 302.
The cap assembly 100 of the full-tab battery provided by the utility model further comprises an insulating pad 60, the insulating pad 60 is of a circular sheet structure, a fourth through hole 601 is formed in the center position of the insulating pad 60, the insulating pad 60 is arranged between the current collecting disc 10 and the cover plate 30, the positive electrode conductive post 20 passes through the fourth through hole 601, the insulating pad 60 is sleeved with the positive electrode conductive post 20, and the cap assembly has an insulating function and can prevent the positive electrode conductive post 20 from being shorted. In this embodiment, the insulating pad 60 is provided with a plurality of heat dissipation holes 602.
The utility model also provides a full-tab battery 200, which comprises a shell 220 with an opening at one end, an electric core 210 accommodated in the shell 220, and the cap assembly 100 of the full-tab battery according to any one of the embodiments, wherein the cap assembly 100 seals one end of the opening of the shell 220. The cap assembly 100 is a mechanically roll-sealed cap that provides a simple and robust form of electrode dispersion and handling.
Further, the all-tab battery 200 further includes an insulating seal ring 230, the insulating seal ring 230 is located between the housing 220 and the cover plate 30 in the cap assembly 100 of the all-tab battery, specifically, a roller groove 221 is rolled at a position of the housing 220 close to the end, the insulating seal ring 230 is clamped between the roller groove 221 and the end, a clamping groove 231 is formed in the insulating seal ring 230, and an edge of the cover plate 30 is clamped in the clamping groove 231. It can be appreciated that the insulating seal ring 230 has a certain elasticity, the insulating seal ring 230 is used for roller sealing insulation with the housing 220, and the insulating seal ring 230 can separate the positive electrode from the negative electrode when the cover plate 30 is packaged with the housing 220, and can improve the sealing strength of the battery by means of the shrinkage expansion principle.
It is understood that all embodiments of the cap assembly 100 of the full tab battery provided by the present utility model are applicable to the full tab battery 200 provided by the present utility model, and can achieve the same or similar technical effects.
In summary, according to the cap assembly 100 of the full-tab battery and the full-tab battery 200 provided by the utility model, the current collecting disc 10 is electrically connected with the full-tab of the positive electrode of the battery core 210, one end of the positive electrode conductive post 20 abuts against the current collecting disc 10, the other end of the positive electrode conductive post 20 is welded with the cover plate 30, that is, the positive electrode conductive post 20 is located between the current collecting disc 10 and the cover plate 30, two end faces of the positive electrode conductive post 20 are respectively welded with the current collecting disc 10 and the cover plate 30, the positive electrode conductive post 20 realizes the electrical connection between the current collecting disc 10 and the cover plate 30, the cap 50 is covered on the cover plate 30, and then the conductive cross-sectional area of the joint of the positive electrode conductive post 20 and the cover plate 30 far exceeds that of the sheet-shaped tab, so that the problems of inconvenient connection and installation and limited conductive cross-sectional area of the sheet-shaped tab can be avoided, the structure is simple, the operation is convenient, and the high-rate operation of electric energy is convenient. In addition, the current collecting disc 10 is provided with a first through hole 101, the positive electrode conductive column 20 is provided with a second through hole 201, the cover plate 30 is provided with a third through hole 301, the positions of the first through hole 101, the second through hole 102 and the third through hole 103 are opposite, the rubber plug 40 penetrates through the first through hole 101, the second through hole 102 and the third through hole 103, the rubber plug 40 can seal the first through hole 101, the second through hole 102 and the third through hole 103, the rubber plug 40 can effectively block vaporific volatilization of electrolyte in a battery, and capacity retention capacity of the battery is improved.
The foregoing description is only of embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present utility model or directly or indirectly applied to other related technical fields are included in the scope of the present utility model.
Claims (10)
1. The cap assembly of the full-lug battery is characterized by comprising a current collecting disc, a positive electrode conductive column, a cover plate, a rubber plug and a cap; the battery is characterized in that the current collecting disc is arranged at one end of an electric core in the battery, the current collecting disc is electrically connected with an anode all-lug of the electric core, a first through hole is formed in the current collecting disc, a second through hole is formed in the anode conductive column, a third through hole is formed in the cover plate, the first through hole, the second through hole and the third through hole are opposite, one end of the anode conductive column abuts against the current collecting disc and is in welded connection, the other end of the anode conductive column is in welded connection with the cover plate, the rubber plug penetrates through the first through hole, the second through hole and the third through hole, the rubber plug seals the first through hole, the second through hole and the third through hole, and the cover cap is arranged on the cover plate.
2. The cap assembly of a full tab battery of claim 1 wherein the positive conductive post comprises opposing first and second end faces, the first end face abutting a central location of the current collecting tray, the second end face being in welded connection with the cover plate.
3. The cap assembly of a full tab battery of claim 2, wherein the current collecting plate is provided with a plurality of protrusions, the plurality of protrusions are arranged along a direction from a central position to an edge position of the current collecting plate, and one end of the plurality of protrusions, which is close to the central position of the current collecting plate, abuts against the positive electrode conductive post.
4. The cap assembly of claim 1, wherein the rubber plug comprises a clamping portion and an insertion portion connected with the clamping portion, the clamping portion is clamped at one end of the positive electrode conductive column close to the cover plate, and the insertion portion penetrates through the first through hole, the second through hole and the third through hole.
5. The cap assembly of a full tab battery of claim 1, further comprising an insulating pad, the insulating pad having a fourth through hole, the insulating pad being disposed between the current collecting plate and the cover plate, and the positive electrode conductive post passing through the fourth through hole.
6. The cap assembly of a full tab battery of claim 1, wherein the cover plate defines an annular groove surrounding the third through hole, the cap being secured within the annular groove.
7. The cap assembly of a full tab battery of claim 6, wherein the cover plate is stamped with an explosion proof wire.
8. A full-tab battery, comprising a housing having an opening at one end, a battery cell housed in the housing, and a cap assembly of the full-tab battery as claimed in any one of claims 1 to 7, the cap assembly sealing one end of the opening of the housing.
9. The full tab battery of claim 8 further comprising an insulating seal ring located between the housing and a cover plate in a cap assembly of the full tab battery.
10. The full tab battery of claim 9 wherein the housing is rolled with a roller groove adjacent the end, the insulating seal is captured between the roller groove and the end, the insulating seal defines a slot, and the edge of the cover is captured in the slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222567449.9U CN220121971U (en) | 2022-09-27 | 2022-09-27 | Cap assembly of all-tab battery and all-tab battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222567449.9U CN220121971U (en) | 2022-09-27 | 2022-09-27 | Cap assembly of all-tab battery and all-tab battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220121971U true CN220121971U (en) | 2023-12-01 |
Family
ID=88892650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222567449.9U Active CN220121971U (en) | 2022-09-27 | 2022-09-27 | Cap assembly of all-tab battery and all-tab battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220121971U (en) |
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2022
- 2022-09-27 CN CN202222567449.9U patent/CN220121971U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu Hangli Xingqi New Energy Co.,Ltd. Assignor: Aerospace lithium Technology (Jiangsu) Co.,Ltd. Contract record no.: X2024980010266 Denomination of utility model: Cap components and all pole ear batteries for all pole ear batteries Granted publication date: 20231201 License type: Common License Record date: 20240723 |