CN221262538U - Cylindrical battery with anode and cathode at same end - Google Patents
Cylindrical battery with anode and cathode at same end Download PDFInfo
- Publication number
- CN221262538U CN221262538U CN202322843637.4U CN202322843637U CN221262538U CN 221262538 U CN221262538 U CN 221262538U CN 202322843637 U CN202322843637 U CN 202322843637U CN 221262538 U CN221262538 U CN 221262538U
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- cover plate
- metal cover
- negative electrode
- positive
- positive electrode
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 118
- 239000002184 metal Substances 0.000 claims abstract description 118
- 238000007789 sealing Methods 0.000 claims description 21
- 230000000903 blocking effect Effects 0.000 claims description 14
- 238000009413 insulation Methods 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
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- Connection Of Batteries Or Terminals (AREA)
- Secondary Cells (AREA)
Abstract
The cylindrical battery with the same positive and negative ends comprises a metal shell with two through ends, a battery cell arranged in the metal shell, a positive electrode lug and a negative electrode lug respectively arranged at two ends of the battery cell, a positive electrode post, a negative electrode post, a positive metal cover plate and a negative metal cover plate, wherein the positive metal cover plate and the negative metal cover plate are respectively correspondingly connected with two ends of the metal shell; the positive electrode post is connected with the positive electrode lug, the positive electrode post and the negative electrode post are both arranged on the positive electrode metal cover plate, an insulating component is arranged between the positive electrode post and the positive electrode metal cover plate, and the negative electrode lug is connected with the negative electrode metal cover plate; or the positive pole post and the negative pole post are arranged on the negative metal cover plate, and other structures are correspondingly arranged. Compared with the prior art, the cylindrical battery realizes the same-end arrangement of the pole by fully utilizing the metal shell, the positive metal cover plate and the negative metal cover plate, has a simple structure and is beneficial to reducing the assembly difficulty of the cylindrical battery.
Description
Technical Field
The utility model belongs to the technical field of cylindrical batteries, and particularly relates to a cylindrical battery with positive and negative electrodes at the same end.
Background
In order to facilitate the welding of the cylindrical battery and the formation of the battery module by the PACK, the manufacturing cost of the cylindrical battery is reduced, and the anode and the cathode of the conventional cylindrical battery are arranged at the same end part of the cylindrical battery. Specifically, the positive lug of the cylindrical battery is led to one end of the negative lug through the metal connecting piece, or the negative lug of the cylindrical battery is led to one end of the positive lug through the metal connecting piece, so that the positive pole post and the negative pole post are arranged at the same end of the cylindrical battery. However, the above cylindrical battery needs to be provided with the metal connecting piece to realize the same ends of the anode and the cathode, which not only results in complex structure of the cylindrical battery and improves the assembly difficulty, but also occupies the internal space of the cylindrical battery and reduces the performance of the battery core.
Disclosure of utility model
The utility model aims to overcome the defects in the prior art and provides a cylindrical battery with positive and negative electrodes at the same end.
In order to achieve the above purpose, the utility model discloses a cylindrical battery with positive and negative electrodes at the same end, which comprises a metal shell with two through ends, a battery core arranged in the metal shell, a positive electrode tab and a negative electrode tab respectively arranged at the two ends of the battery core, a positive electrode post, a negative electrode post, a positive electrode metal cover plate and a negative electrode metal cover plate, wherein the positive electrode metal cover plate and the negative electrode metal cover plate are respectively correspondingly connected to the two ends of the metal shell;
The positive electrode post is connected with the positive electrode lug, the positive electrode post and the negative electrode post are both arranged on the positive electrode metal cover plate, an insulating component is arranged between the positive electrode post and the positive electrode metal cover plate, and the negative electrode lug is connected with the negative electrode metal cover plate; or alternatively
The negative electrode post is connected with the negative electrode lug, the positive electrode post and the negative electrode post are both arranged on the negative electrode metal cover plate, an insulating component is arranged between the negative electrode post and the negative electrode metal cover plate, and the positive electrode lug is connected with the positive electrode metal cover plate.
Preferably, the insulation component comprises an annular blocking piece and a first sealing piece, the annular blocking piece is arranged on the positive electrode metal cover plate or the negative electrode metal cover plate, the first sealing piece is arranged between the annular blocking piece and the positive electrode metal cover plate or the negative electrode metal cover plate, and the positive electrode post or the negative electrode post is arranged in the annular blocking piece.
Further preferably, the bottom of the annular blocking piece horizontally extends outwards to form a limiting lug, the insulating assembly further comprises an annular top seal, the annular top seal is arranged at the top of the annular blocking piece, a second sealing piece is arranged between the limiting lug and the positive electrode metal cover plate or the negative electrode metal cover plate, and a third sealing piece is arranged between the annular top seal and the positive electrode metal cover plate or the negative electrode metal cover plate.
Preferably, an insulating plate is arranged between the positive electrode tab and the positive electrode post, or an insulating plate is arranged between the negative electrode tab and the negative electrode post.
Further preferably, a current collecting disc is arranged between the positive electrode tab and the positive electrode post and/or between the negative electrode tab and the negative electrode post.
Further preferably, the outer side wall of the collecting tray is recessed inwards to form a welding position.
Preferably, the metal shell is an aluminum shell.
Compared with the prior art, the utility model has the beneficial effects that: according to the cylindrical battery, one end part is provided with the positive electrode post and the negative electrode post, the electrode lug of the end part is connected with the corresponding electrode post, and insulation is realized between the electrode post and the metal cover plate of the end part through the insulation component; and the other end part is connected with the corresponding pole through the corresponding metal cover plate, the metal shell and the other metal cover plate, so that the same end setting of the cylindrical battery is finally realized. Above realize the same end setting of utmost point post through make full use of metal casing, anodal metal cover plate and negative pole metal cover plate, need not set up other structures, simple structure is favorable to reducing the equipment degree of difficulty of cylinder battery, improves packaging efficiency. In addition, the battery core can fully utilize the internal space, thereby being beneficial to improving the performance of the cylindrical battery.
Drawings
Fig. 1 is a schematic perspective view of a cylindrical battery according to the present utility model;
fig. 2 is a schematic view showing an exploded perspective structure of the cylindrical battery of fig. 1;
FIG. 3 is a schematic view of an exploded perspective view of the positive metal cover plate and the insulating assembly of FIG. 1;
FIG. 4 is a cross-sectional view of the positive metal cover plate and insulation assembly of FIG. 3;
A metal shell 1;
a battery cell 2;
a positive electrode post 3;
A negative electrode post 4;
A positive electrode metal cover plate 5;
a negative electrode metal cover plate 6;
an insulating member 7; an annular stopper 71; a stop tab 711; a first seal 72; an annular top seal 73; a second seal 74; a third seal 75;
an insulating plate 8;
a collecting tray 9.
Detailed Description
In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and include, for example, either fixedly attached, detachably attached, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
The technical scheme of the utility model is further described below with reference to fig. 1-4.
The cylindrical battery with the same positive and negative electrodes comprises a metal shell 1 with two through ends, a battery core 2 arranged in the metal shell 1, positive electrode lugs and negative electrode lugs respectively arranged at the two ends of the battery core 2, a positive electrode post 3, a negative electrode post 4, a positive electrode metal cover plate 5 and a negative electrode metal cover plate 6, wherein the metal shell is penetrated at the two ends. The positive electrode metal cover plate 5 and the negative electrode metal cover plate 6 are respectively and correspondingly connected to the two end parts of the metal shell 1; the positive pole post 3 is connected with the positive pole lug, and positive pole post 3 and negative pole post 4 all locate on positive pole metal cover plate 5, are equipped with insulating component 7 between positive pole post 3 and the positive pole metal cover plate 5, and the negative pole lug is connected with negative pole metal cover plate 6.
In the cylindrical battery of the embodiment, the positive electrode metal cover plate 5 is provided with the positive electrode post 3 and the negative electrode post 4, the positive electrode tab is connected with the positive electrode post 3, and insulation is realized between the positive electrode post 3 and the positive electrode metal cover plate 5 through the insulation component 7; and the negative electrode tab is connected with the corresponding electrode post through the negative electrode metal cover plate 6, the metal shell 1 and the positive electrode metal cover plate 5, and finally the same-end arrangement of the cylindrical battery is realized. The metal shell 1, the positive electrode metal cover plate 5 and the negative electrode metal cover plate 6 are fully utilized to realize the same-end arrangement of the pole, other structures are not required to be arranged, the structure is simple, the assembly difficulty of the cylindrical battery is reduced, and the assembly efficiency is improved. In addition, the battery cell 2 can fully utilize the internal space, which is beneficial to improving the performance of the cylindrical battery. The cylindrical battery with the same anode and cathode is convenient for charging and discharging and PACK, and the design cost is reduced.
In this embodiment, the metal shell 1, the positive metal cover plate 5 and the negative metal cover plate 6 are made of metal conductive materials, wherein, as one preferable material, all the materials are aluminum shells, which unifies the materials to reduce the resistance value and improve the consistency of the product.
In this embodiment, referring to fig. 3-4, the insulating assembly 7 includes an annular stopper 71 and a first sealing member 72, the annular stopper 71 is disposed on the positive electrode metal cover plate 5, the first sealing member 72 is disposed between the annular stopper 71 and the positive electrode metal cover plate 5, and the positive electrode post 3 is disposed in the annular stopper 71. The first sealing element 72 further insulates the annular blocking element 71 between the positive metal cover plate 5 and the positive pole 3, and the sealing structure has a simple structure.
Specifically, the bottom of the annular baffle 71 extends horizontally and outwards to form a limiting lug 711, the insulating assembly 7 further comprises an annular top seal 73, the annular top seal 73 is sleeved on the top of the annular baffle 71, a second sealing element 74 is arranged between the limiting lug 711 and the positive electrode metal cover plate 5 or the negative electrode metal cover plate 6, and a third sealing element 75 is arranged between the annular top seal 73 and the positive electrode metal cover plate 5 or the negative electrode metal cover plate 6. When the insulating assembly 7 is installed on the positive metal cover plate 5, the first sealing member 72 is sleeved outside the annular blocking member 71, the second sealing member 74 is sleeved on the limiting lug 711, then the structure passes through the positive pole 3 hole of the positive metal cover plate 5 until the second sealing member 74 abuts against the bottom of the positive metal cover plate 5, then the third sealing member 75 is sleeved above the positive metal cover plate 5 and on the annular blocking member 71, the annular top sealing member 73 is sleeved on the annular blocking member 71 and welded and fixed, and finally the insulating assembly 7 is installed on the positive metal cover plate 5. The annular baffle 71 is installed by arranging the limiting lugs 711 and the annular top seal 73, so that the structure is simple and the installation is convenient. In addition, set up second sealing member 74, annular top seal 73 and positive pole metal cover plate 5 between spacing ear 711 and positive pole metal cover plate 5 and set up third sealing member 75 between, further improved the insulating properties between positive pole metal cover plate 5 and the positive pole post, improved the reliability of cylinder battery.
In this embodiment, referring to fig. 3 to 4, an insulating plate 8 is disposed between the positive electrode tab and the positive electrode post 3, and the insulating plate 8 is connected to the positive electrode metal cap plate 5. By arranging the insulating plate 8, the insulating performance between the anode metal cover plate 5 and the anode post is further improved, and the reliability of the cylindrical battery is improved.
In this embodiment, referring to fig. 3 to 4, current collecting plates 9 are disposed between the positive electrode tab and the positive electrode tab 3 and between the negative electrode tab and the negative electrode tab 4, and the positive electrode tab 3 and the negative electrode tab 4 are connected to the corresponding current collecting plates 9. The outer side wall of the collecting tray 9 is recessed inwards to form a welding position. Through setting up current collecting tray 9 to set up the welding position on current collecting tray 9, be favorable to increasing the welding area, promote laser welding firmness, reduce the current collecting tray 9 simultaneously with the resistance value of electric core 2 utmost point ear.
In the embodiment, the metal cover plate is provided with the arched explosion-proof valve, the detonation pressure value of the explosion-proof valve is controlled to be within 0.1Mpa, and the use safety of the battery can be effectively maintained.
The positive electrode post 3 and the negative electrode post 4 of the cylindrical battery of this embodiment are both disposed on the positive electrode metal cover plate 5, and as other alternative embodiments, the positive electrode post 3 and the negative electrode post 4 may also be both disposed on the negative electrode metal cover plate 6, and correspondingly, the negative electrode post 4 is connected with the negative electrode tab, the insulating component 7 is disposed between the negative electrode post 4 and the negative electrode metal cover plate 6, and the positive electrode tab is connected with the positive electrode metal cover plate 5.
It is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.
Claims (7)
1. A positive and negative pole is cylinder battery with end, its characterized in that: the battery comprises a metal shell with two ends penetrating, a battery cell arranged in the metal shell, a positive electrode lug, a negative electrode lug, a positive electrode post, a negative electrode post, a positive electrode metal cover plate and a negative electrode metal cover plate which are respectively arranged at two ends of the battery cell, wherein the positive electrode metal cover plate and the negative electrode metal cover plate are respectively correspondingly connected to two ends of the metal shell;
The positive electrode post is connected with the positive electrode lug, the positive electrode post and the negative electrode post are both arranged on the positive electrode metal cover plate, an insulating component is arranged between the positive electrode post and the positive electrode metal cover plate, and the negative electrode lug is connected with the negative electrode metal cover plate; or alternatively
The negative electrode post is connected with the negative electrode lug, the positive electrode post and the negative electrode post are both arranged on the negative electrode metal cover plate, an insulating component is arranged between the negative electrode post and the negative electrode metal cover plate, and the positive electrode lug is connected with the positive electrode metal cover plate.
2. The positive and negative electrode same-end cylindrical battery according to claim 1, wherein: the insulation assembly comprises an annular blocking piece and a first sealing piece, the annular blocking piece is arranged on the positive electrode metal cover plate or the negative electrode metal cover plate, the first sealing piece is arranged between the annular blocking piece and the positive electrode metal cover plate or the negative electrode metal cover plate, and the positive electrode post or the negative electrode post is arranged in the annular blocking piece.
3. The positive and negative electrode same-end cylindrical battery according to claim 2, wherein: the bottom of annular fender piece is horizontal outwards to extend has spacing ear, insulating subassembly still includes annular top seal, annular top seal cover is located annular fender piece's top, spacing ear with be equipped with the second sealing member between anodal metal cover plate or the negative pole metal cover plate, annular top seal with be equipped with the third sealing member between anodal metal cover plate or the negative pole metal cover plate.
4. The positive and negative electrode same-end cylindrical battery according to claim 1, wherein: an insulating plate is arranged between the positive electrode lug and the positive electrode post, or an insulating plate is arranged between the negative electrode lug and the negative electrode post.
5. The positive and negative electrode same-end cylindrical battery according to claim 4, wherein: and a current collecting disc is arranged between the positive electrode lug and the positive electrode post and/or between the negative electrode lug and the negative electrode post.
6. The positive and negative electrode same-end cylindrical battery according to claim 5, wherein: and the outer side wall of the current collecting disc is inwards recessed to form a welding position.
7. The positive and negative electrode same-end cylindrical battery according to any one of claims 1 to 6, wherein: the metal shell is an aluminum shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322843637.4U CN221262538U (en) | 2023-10-23 | 2023-10-23 | Cylindrical battery with anode and cathode at same end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322843637.4U CN221262538U (en) | 2023-10-23 | 2023-10-23 | Cylindrical battery with anode and cathode at same end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221262538U true CN221262538U (en) | 2024-07-02 |
Family
ID=91656657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322843637.4U Active CN221262538U (en) | 2023-10-23 | 2023-10-23 | Cylindrical battery with anode and cathode at same end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221262538U (en) |
-
2023
- 2023-10-23 CN CN202322843637.4U patent/CN221262538U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |