CN219677512U - Multi-pole top cover and lithium battery - Google Patents
Multi-pole top cover and lithium battery Download PDFInfo
- Publication number
- CN219677512U CN219677512U CN202320987765.3U CN202320987765U CN219677512U CN 219677512 U CN219677512 U CN 219677512U CN 202320987765 U CN202320987765 U CN 202320987765U CN 219677512 U CN219677512 U CN 219677512U
- Authority
- CN
- China
- Prior art keywords
- pole
- top cover
- explosion
- top cap
- posts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000005405 multipole Effects 0.000 title claims abstract description 33
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 16
- 229910052782 aluminium Inorganic materials 0.000 claims description 16
- 238000002347 injection Methods 0.000 claims description 14
- 239000007924 injection Substances 0.000 claims description 14
- 229920003023 plastic Polymers 0.000 claims description 14
- 239000004033 plastic Substances 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000013461 design Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model provides a multi-pole top cover and a lithium battery, wherein the multi-pole top cover comprises: a top cover body and a plurality of poles; the plurality of pole posts are arranged on the top cover body at equal intervals, wherein the number of the pole posts is at least three. Through the length of extension top cap to design a plurality of posts, can realize the industrialization of single high-capacity electric core more easily, manufacturing cost is low, reduces the industrialization difficulty of high-capacity electric core.
Description
Technical Field
The utility model relates to the field of lithium batteries, in particular to a multi-pole top cover and a lithium battery.
Background
With the development of new energy industry, the battery cell product is developed towards the direction of large capacity. The structural design of the high-capacity battery cell is changed, so that the top cover is required to be changed. The optimization of the top cover structure can reduce the cost of the top cover and the space occupation rate, so that the energy density and the capacity of the single battery cell are increased.
The existing top cover design is less in consideration of economy and space occupation ratio, and cannot realize good connection for high-capacity battery cells, particularly the battery cells expanded in width, and cannot meet the use requirements of the battery cells expanded in width.
The above problems are currently in need of solution.
Disclosure of Invention
The utility model aims to provide a multi-pole top cover and a lithium battery, so that the use requirement of a large-capacity battery cell on the width expansion is met.
In order to solve the above technical problems, the present utility model provides a multi-pole top cover, comprising:
a top cover body and a plurality of poles;
the plurality of pole posts are arranged on the top cover body;
wherein the number of the polar posts is at least three.
Further, the plurality of the polar posts are divided into two polarities, namely positive and negative;
the positive pole and the negative pole are arranged at intervals.
Further, the distance between two adjacent poles is adapted to the length of the outer single core pack.
Further, the top cover body is provided with a plurality of liquid injection holes and a plurality of explosion-proof valves.
Further, a plurality of liquid injection holes and the explosion-proof valve are respectively arranged among a plurality of polar posts.
Further, a liquid injection hole and an explosion-proof valve are arranged between two adjacent polar posts.
Further, a liquid injection hole and an explosion-proof valve are arranged between two adjacent polar posts at intervals.
Further, the explosion-proof valve comprises an explosion-proof valve body and an explosion-proof valve patch;
and the top cover body is provided with a mounting hole suitable for mounting the explosion-proof valve body and the explosion-proof valve patch.
Further, the top cover body includes: a light aluminum plate, a lower plastic plate and a plurality of upper plastics;
the pole post passes through the lower plastic plate and the polished aluminum plate respectively and then is clamped with the upper plastic plate.
Further, a sealing ring is further arranged on the pole.
Further, a plurality of the pole posts are arranged on the top cover body.
The utility model also provides a lithium battery, which comprises an aluminum shell, an electric core and the multi-pole top cover;
the battery cell is arranged in the aluminum shell;
the multi-pole top cover covers the upper portion of the aluminum shell.
The utility model has the beneficial effects that the utility model provides a multi-pole top cover and a lithium battery, wherein the multi-pole top cover comprises: a top cover body and a plurality of poles; the plurality of pole posts are arranged on the top cover body at equal intervals, wherein the number of the pole posts is at least three. Through the length of extension top cap to design a plurality of posts, can realize the industrialization of single high-capacity electric core more easily, manufacturing cost is low, reduces the industrialization difficulty of high-capacity electric core.
Drawings
The utility model will be further described with reference to the drawings and examples.
Fig. 1 is a schematic structural view of a multi-pole top cover according to an embodiment of the present utility model.
Fig. 2 is a schematic structural view of another multi-pole top cover according to an embodiment of the present utility model.
Fig. 3 is an exploded view of a multi-pole top cap provided by an embodiment of the present utility model.
In the figure: 100. a top cover body; 110. a pole; 120. a liquid injection hole; 130. an explosion-proof valve; 131. an explosion-proof valve body; 132. an explosion-proof valve patch; 140. a polished aluminum plate; 150. a lower plastic plate; 160. applying plastic; 170. and (3) sealing rings.
Detailed Description
The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.
Referring to fig. 1-3, the present utility model provides a multi-pole 110 top cover, comprising: a cap body 100 and a plurality of poles 110; the plurality of poles 110 are disposed on the top cover body 100 at equal intervals, wherein the number of the poles is at least three. By extending the length of the top cover and designing the plurality of poles 110, industrialization of the single high-capacity battery cell can be realized more easily, the production and manufacturing cost is low, and the industrialization difficulty of the high-capacity battery cell is reduced.
Specifically, the plurality of the posts 110 are divided into two polarities, positive and negative; the positive electrode posts 110 and the negative electrode posts 110 are disposed at a distance.
It should be noted that the number of the poles 110 is not limited, and in an actual scheme, 4 poles 110, 5 poles 110, 6 poles 110 and … … and more can be achieved according to circumstances; the top cap of the multi-pole 110 can be applied to a large-capacity cell expanding in the width direction; on the cover of the multi-pole 110, the poles 110 are not limited in polarity, and only two adjacent poles 110 are required to be opposite in polarity. For example: the pole 110 polarity from the 3 pole 110 may be: the polarity of the positive electrode post 110-negative electrode post 110-positive electrode post 110, or the polarity of the negative electrode post 110-positive electrode post 110-negative electrode post 110,4 post 110 is: positive electrode column 110-negative electrode column 110-positive electrode column 110-negative electrode column 110, or negative electrode column 110-positive electrode column 110-negative electrode column 110-positive electrode column 110.
Meanwhile, adjacent tabs of two adjacent core packages in the battery cell have the same polarity and are welded with the pole 110, so that the use requirement of the battery cell expanding in width is met.
In this embodiment, the distance between two adjacent poles 110 is adapted to the length of the outer single core pack.
Specifically, the pole 110 is disposed between two adjacent core packages and is electrically connected to corresponding tabs of the two adjacent core packages.
In this embodiment, the top cover body 100 is provided with a plurality of filling holes 120 and a plurality of explosion-proof valves 130.
Wherein the explosion-proof valve 130 comprises an explosion-proof valve body 131 and an explosion-proof valve patch 132; the top cover body 100 is provided with a mounting hole suitable for mounting the explosion-proof valve body 131 and the explosion-proof valve patch 132.
In this embodiment, the top cover body 100 includes: a light aluminum plate 140, a lower plastic plate 150 and a plurality of upper plastic 160; the pole 110 passes through the lower plastic plate 150 and the aluminum plate 140, and then is clamped with the upper plastic 160.
In this embodiment, a seal ring 170 is further disposed on the pole 110.
In embodiment 2, the present embodiment provides a multipolar column 110 top cover having the same structure as that of embodiment 1, and defines the arrangement of the liquid injection hole 120 and the explosion-proof valve 130.
In this embodiment, the plurality of injection holes 120 and the explosion-proof valve 130 are respectively disposed between the plurality of poles 110.
Specifically, the liquid injection holes 120 are formed between every two adjacent polar posts 110, so that the bare cells inside the high-capacity cells can be uniformly infiltrated, the infiltration effect of the bare cells of the high-capacity cells is improved, the electrical performance of the cells is better, the overcurrent capacity of the cells is stronger, and the internal resistance of the cells is smaller.
Meanwhile, an explosion-proof valve 130 is arranged between every two adjacent polar posts 110, so that the pressure release requirement of the high-capacity battery cell when the gas production is serious is met.
In other embodiments, one or more of the posts 110 may be spaced apart, and the fill port 120 and the explosion proof valve 130 may be provided in a manner not described in this embodiment.
Embodiment 3, this embodiment provides a multipolar column 110 top cover having the same structure as that of embodiment 1, and defines the arrangement of the liquid injection hole 120 and the explosion-proof valve 130.
In this embodiment, a liquid injection hole 120 and an explosion-proof valve 130 are disposed between two adjacent polar columns 110 at intervals. Thereby guarantee that the inside naked electric core of large capacity electric core can evenly soak, improve the naked electric core infiltration effect of large capacity electric core, and then make the electric property of electric core better, electric core overflow ability is stronger, electric core internal resistance is littleer, satisfies the pressure release demand of large capacity electric core when producing gas seriously simultaneously.
Embodiment 4 provides a lithium battery, which comprises an aluminum shell, an electric core and a multi-pole 110 top cover as described above; the battery cell is arranged in the aluminum shell; the multi-pole 110 top cover is covered over the aluminum housing. By extending the length of the top cover and designing the plurality of poles 110, industrialization of the single high-capacity battery cell can be realized more easily, the production and manufacturing cost is low, and the industrialization difficulty of the high-capacity battery cell is reduced.
Wherein, the electric core expands in the width direction.
In summary, the present utility model provides a multi-pole 110 top cover and a lithium battery, wherein the multi-pole 110 top cover includes: a cap body 100 and a plurality of poles 110; the plurality of poles 110 are disposed on the top cover body 100 at equal intervals, wherein the number of the poles is at least three. By extending the length of the top cover and designing the plurality of poles 110, industrialization of the single high-capacity battery cell can be realized more easily, the production and manufacturing cost is low, and the industrialization difficulty of the high-capacity battery cell is reduced.
The components (components not illustrating the specific structure) selected in the present utility model are common standard components or components known to those skilled in the art, and the structures and principles thereof are known to those skilled in the art through technical manuals or through routine experimental methods. Moreover, the software program related to the utility model is the prior art, and the utility model does not relate to any improvement on the software program.
In the description of embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships 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 devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.
Claims (12)
1. A multi-pole top cap, comprising:
a top cover body and a plurality of poles;
the plurality of pole posts are arranged on the top cover body;
wherein the number of the polar posts is at least three.
2. The multi-pole top cap of claim 1, wherein,
the plurality of polar posts are divided into a positive pole and a negative pole;
the positive pole and the negative pole are arranged at intervals.
3. The multi-pole top cap of claim 1, wherein,
the distance between two adjacent pole posts is matched with the length of an external single core pack.
4. The multi-pole top cap of claim 1, wherein,
the top cover body is provided with a plurality of liquid injection holes and a plurality of explosion-proof valves.
5. The multi-pole top cap of claim 4, wherein,
the liquid injection holes and the explosion-proof valves are respectively arranged among the polar posts.
6. The multi-pole top cap of claim 5, wherein,
and a liquid injection hole and an explosion-proof valve are arranged between two adjacent polar posts.
7. The multi-pole top cap of claim 5, wherein,
and liquid injection holes and explosion-proof valves are arranged between two adjacent polar posts at intervals.
8. The multi-pole top cap of claim 4, wherein,
the explosion-proof valve comprises an explosion-proof valve body and an explosion-proof valve patch;
and the top cover body is provided with a mounting hole suitable for mounting the explosion-proof valve body and the explosion-proof valve patch.
9. The multi-pole top cap of claim 1, wherein,
the top cap body includes: a light aluminum plate, a lower plastic plate and a plurality of upper plastics;
the pole post passes through the lower plastic plate and the polished aluminum plate respectively and then is clamped with the upper plastic plate.
10. The multi-pole top cap of claim 9, wherein,
and a sealing ring is further arranged on the pole.
11. The multi-pole top cap of claim 1, wherein,
the plurality of pole posts are arranged on the top cover body at equal intervals.
12. A lithium battery comprising an aluminum can, a cell, and a multi-terminal cap according to any one of claims 1-10;
the battery cell is arranged in the aluminum shell;
the multi-pole top cover covers the upper portion of the aluminum shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320987765.3U CN219677512U (en) | 2023-04-27 | 2023-04-27 | Multi-pole top cover and lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320987765.3U CN219677512U (en) | 2023-04-27 | 2023-04-27 | Multi-pole top cover and lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219677512U true CN219677512U (en) | 2023-09-12 |
Family
ID=87895629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320987765.3U Active CN219677512U (en) | 2023-04-27 | 2023-04-27 | Multi-pole top cover and lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219677512U (en) |
-
2023
- 2023-04-27 CN CN202320987765.3U patent/CN219677512U/en active Active
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| GR01 | Patent grant | ||
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