CN219873965U - Dislocation utmost point post top cap and lithium cell - Google Patents
Dislocation utmost point post top cap and lithium cell Download PDFInfo
- Publication number
- CN219873965U CN219873965U CN202320986651.7U CN202320986651U CN219873965U CN 219873965 U CN219873965 U CN 219873965U CN 202320986651 U CN202320986651 U CN 202320986651U CN 219873965 U CN219873965 U CN 219873965U
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- China
- Prior art keywords
- pole
- top cover
- core
- dislocated
- explosion
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Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 19
- 210000004027 cell Anatomy 0.000 claims description 32
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 210000005056 cell body Anatomy 0.000 claims description 6
- 238000003466 welding Methods 0.000 abstract description 18
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000004146 energy storage Methods 0.000 description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 210000000352 storage cell Anatomy 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
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model provides a dislocation pole top cover and a lithium battery, wherein the dislocation pole top cover comprises a top cover body, a first pole and a second pole; the first pole and the second pole are arranged on the same side of the top cover body. On the one hand, the number of the poles of the top cover of the existing high-capacity battery core is reduced, the welding times of the lithium battery during use are reduced, on the other hand, the distance between the first pole and the second pole is reduced, welding with the connecting piece of the high-capacity battery core is facilitated, the welding length of an external power line is reduced, and the industrialization difficulty and the production cost of the high-capacity battery core are reduced.
Description
Technical Field
The utility model relates to the field of lithium batteries, in particular to a dislocation pole top cover and a lithium battery.
Background
With the increasing popularity of energy storage markets, energy storage cell products are evolving towards large capacities. The use of the high-capacity battery cell can reduce the use amount of PACK end parts and improve the volume energy density; the high-capacity battery cells can realize high capacity by using fewer battery cells, the parallel connection number is reduced, the BMS difficulty is reduced, the integrated assembly process of the energy storage system is simplified by the application of the high-capacity battery cells, and the investment of land capital construction, containers and other costs can be greatly saved, so that the cost is further reduced.
The existing top cover design is less in consideration of economy and space occupation ratio, and good connection cannot be achieved for a large-capacity battery cell, particularly a battery cell which is expanded in width, a plurality of pole posts are generally uniformly distributed on the top cover, and when the battery cell is connected with an external power line, the length of a positive electrode connecting lead wire and a negative electrode connecting lead wire is too long, so that cost is increased and industrialization difficulty is increased.
The above problems are currently in need of solution.
Disclosure of Invention
The utility model aims to provide a dislocation pole top cover and a lithium battery, so that the welding requirement of the top cover is reduced, and the industrialization difficulty of a high-capacity battery core is reduced.
In order to solve the above technical problems, the present utility model provides a dislocated pole top cover, comprising:
the top cover body, the first pole and the second pole;
the first pole and the second pole are arranged on the same side of the top cover body.
Further, the dislocation pole top cover further comprises at least one explosion-proof valve and at least one liquid injection hole;
the liquid injection hole is arranged outside the first pole and the second pole.
Further, the number of the explosion-proof valves is one;
the explosion-proof valve is arranged between the first pole and the second pole.
Further, the number of the explosion-proof valves is a plurality;
one of the explosion-proof valves is arranged between the first pole and the second pole, and the rest of the explosion-proof valves are arranged outside the first pole and the second pole.
Further, the dislocation pole top cover further comprises a lower plastic plate;
the lower plastic plate is arranged below the top cover body and provided with a mounting hole which is suitable for the first pole and the second pole to pass through.
Further, the lower plastic plate comprises a middle bulge and two side bulges;
the middle protrusion is arranged between the first pole and the second pole.
Further, the setting position of the middle bulge corresponds to the setting position of the explosion-proof valve arranged between the first pole and the second pole;
the middle bulge is provided with a plurality of exhaust holes.
The utility model also provides a lithium battery, which comprises a battery core, a shell and the dislocation pole top cover;
the battery cell is arranged in the shell;
the dislocation pole top cover is covered on the shell;
the battery cell comprises a battery cell body, a first connecting sheet and a second connecting sheet;
the first connecting sheet and the second connecting sheet are respectively and electrically connected with the battery cell body;
the first pole and the second pole are respectively welded with the first connecting sheet and the second connecting sheet of the battery core.
Further, the battery cell body is formed by a plurality of core packages;
the plurality of core bags are arranged in an array along the width and/or thickness direction of the core bag;
the first connecting piece is welded with a plurality of first lugs of the core pack;
and the second connecting sheet is welded with a plurality of second lugs of the core pack.
Further, when the number of core packages in the thickness direction is an odd number, the first pole and the second pole are respectively symmetrical with the corresponding first pole lug and second pole lug of the core package on the central line;
when the number of core packages in the thickness direction is even, the first pole and the second pole are respectively arranged in the middle of two corresponding first pole lugs and in the middle of two second pole lugs in the core packages at two sides on the central line
The utility model has the beneficial effects that the utility model provides a dislocation pole top cover and a lithium battery, wherein the dislocation pole top cover comprises a top cover body, a first pole and a second pole; the first pole and the second pole are arranged on the same side of the top cover body. On the one hand, the number of the poles of the top cover of the existing high-capacity battery core is reduced, the welding times of the lithium battery during use are reduced, on the other hand, the distance between the first pole and the second pole is reduced, welding with the connecting piece of the high-capacity battery core is facilitated, the welding length of an external power line is reduced, and the industrialization difficulty and the production cost of the high-capacity battery core are reduced.
Drawings
The utility model will be further described with reference to the drawings and examples.
Fig. 1 is a schematic structural view of a top cap of a dislocated pole in accordance with an embodiment of the present utility model.
Fig. 2 is a bottom view of a dislocated pole cap provided by an embodiment of the present utility model.
Fig. 3 is a schematic structural diagram of a lithium battery according to an embodiment of the present utility model.
In the figure: 100. a dislocation pole top cover; 110. a top cover body; 120. a first pole; 130. a second post; 140. an explosion-proof valve; 150. a liquid injection hole; 160. a lower plastic plate; 161. a middle bulge; 162. the edge part is convex; 200. a battery cell; 210. a first connecting piece; 220. a second connecting piece; 230. a first tab; 240. a second lug; 300. a housing.
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.
Example 1
Referring to fig. 1-3, the present embodiment provides a dislocated pole top cap 100, comprising: a cap body 110, a first pole 120, and a second pole 130; the first pole 120 and the second pole 130 are disposed on the same side of the top cover body 110. On the one hand, the number of the poles of the top cover of the existing high-capacity battery cell 200 is reduced, the welding times when the lithium battery is used are reduced, on the other hand, the distance between the first pole 120 and the second pole 130 is reduced, the welding with the connecting piece of the high-capacity battery cell 200 is facilitated, the welding length of an external power line is reduced, and the industrialization difficulty and the production cost of the high-capacity battery cell 200 are reduced.
In this embodiment, the dislocated pole top cap 100 further comprises at least one explosion-proof valve 140 and at least one injection hole 150; the filling hole 150 is disposed outside the first pole 120 and the second pole 130. The liquid injection hole 150 is formed outside the first pole 120 and the second pole 130, so as to avoid the connection piece of the high-capacity battery cell 200, and facilitate liquid injection.
In this embodiment, the number of the explosion-proof valves 140 is one; the explosion-proof valve 140 is disposed between the first pole 120 and the second pole 130. In other embodiments, the number of explosion proof valves 140 is a plurality; one of the explosion-proof valves 140 is disposed between the first and second poles 120 and 130, and the other explosion-proof valves 140 are disposed outside the first and second poles 120 and 130.
In this embodiment, the dislocated pole top cap 100 further comprises a lower plastic plate 160; the lower plastic plate 160 is disposed below the top cover body 110, and has mounting holes for the first pole 120 and the second pole 130 to pass through. Wherein the lower plastic plate 160 includes a middle protrusion 161 and two side protrusions 162; the middle protrusion 161 is disposed between the first pole 120 and the second pole 130. By providing the middle protrusion 161, the first pole 120 and the second pole 130 are separated, so that the connection piece of the high-capacity battery cell 200 penetrates through the whole top cover in the width direction, and the side protrusion 162 is provided, so that most pole top covers are covered and are convenient to insert into the outer casing 300.
In the present embodiment, the setting position of the intermediate projection 161 corresponds to the setting position of the explosion-proof valve 140 disposed between the first pole 120 and the second pole 130; the middle protrusion 161 is provided with a plurality of exhaust holes.
Example 2
Referring to fig. 3, the present embodiment provides a lithium battery, including a battery cell 200, a housing 300, and a dislocated pole top cover 100 as provided in the example; the battery cell 200 is internally arranged in the shell 300; the dislocated pole top cap 100 is covered on the shell 300; the battery cell 200 includes a battery cell 200 body, a first connection piece 210 and a second connection piece 220; the first connecting piece 210 and the second connecting piece 220 are electrically connected to the body of the battery cell 200 respectively; the first pole 120 and the second pole 130 are welded to a first connecting piece 210 and a second connecting piece 220 of the battery cell 200, respectively. On the one hand, the number of the poles of the top cover of the existing high-capacity battery cell 200 is reduced, the welding times when the lithium battery is used are reduced, on the other hand, the distance between the first pole 120 and the second pole 130 is reduced, the welding with the connecting piece of the high-capacity battery cell 200 is facilitated, the welding length of an external power line is reduced, and the industrialization difficulty and the production cost of the high-capacity battery cell 200 are reduced.
In this embodiment, the body of the battery cell 200 is formed by a plurality of core packages; the plurality of core bags are arranged in an array along the width and/or thickness direction of the core bag; the first connection piece 210 is welded with the first tabs 230 of the core pack; the second connecting piece 220 is welded to a plurality of second lugs 240 of the core pack. The number and the cost of the connecting pieces are reduced, and the welding time of the connecting pieces during welding of the core package is reduced.
Wherein the width direction is shown as F1 in fig. 3, and the thickness direction is shown as F2 in fig. 3.
In this embodiment, when the number of core packages in the thickness direction is an odd number, the first pole 120 and the second pole 130 are respectively center-symmetrical with the corresponding first pole tab 230 and second pole tab 240 of the core package on the central line; when the number of core packages in the thickness direction is even, the first pole 120 and the second pole 130 are respectively disposed in the middle of two corresponding first tabs 230 and in the middle of two second tabs 240 in the core packages on two sides of the central line
In summary, the present utility model provides a dislocated pole top cap 100 and a lithium battery, wherein the dislocated pole top cap 100 includes a top cap body 110, a first pole 120 and a second pole 130; the first pole 120 and the second pole 130 are disposed on the same side of the top cover body 110. On the one hand, the number of the poles of the top cover of the existing high-capacity battery cell 200 is reduced, the welding times when the lithium battery is used are reduced, on the other hand, the distance between the first pole 120 and the second pole 130 is reduced, the welding with the connecting piece of the high-capacity battery cell 200 is facilitated, the welding length of an external power line is reduced, and the industrialization difficulty and the production cost of the high-capacity battery cell 200 are 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 (10)
1. A dislocated pole cap, comprising:
the top cover body, the first pole and the second pole;
the first pole and the second pole are arranged on the same side of the top cover body.
2. The dislocated pole top cap of claim 1,
the dislocation pole top cover further comprises at least one explosion-proof valve and at least one liquid injection hole;
the liquid injection hole is arranged outside the first pole and the second pole.
3. The dislocated pole top cap of claim 2,
the number of the explosion-proof valves is one;
the explosion-proof valve is arranged between the first pole and the second pole.
4. The dislocated pole top cap of claim 2,
the number of the explosion-proof valves is a plurality;
one of the explosion-proof valves is arranged between the first pole and the second pole, and the rest of the explosion-proof valves are arranged outside the first pole and the second pole.
5. The dislocated pole top cap of any one of claims 3-4,
the dislocation pole top cover further comprises a lower plastic plate;
the lower plastic plate is arranged below the top cover body and provided with a mounting hole which is suitable for the first pole and the second pole to pass through.
6. The dislocated pole top cap of claim 5,
the lower plastic plate comprises a middle bulge and two side bulges;
the middle protrusion is arranged between the first pole and the second pole.
7. The dislocated pole top cap of claim 6,
the setting position of the middle bulge corresponds to the setting position of the explosion-proof valve arranged between the first pole and the second pole;
the middle bulge is provided with a plurality of exhaust holes.
8. A lithium battery comprising a battery cell, a housing, and a dislocated post cap according to any one of claims 1-7;
the battery cell is arranged in the shell;
the dislocation pole top cover is covered on the shell;
the battery cell comprises a battery cell body, a first connecting sheet and a second connecting sheet;
the first connecting sheet and the second connecting sheet are respectively and electrically connected with the battery cell body;
the first pole and the second pole are respectively welded with the first connecting sheet and the second connecting sheet of the battery core.
9. The lithium battery of claim 8, wherein the cell body is comprised of a plurality of core packs;
the plurality of core bags are arranged in an array along the width and/or thickness direction of the core bag;
the first connecting piece is welded with a plurality of first lugs of the core pack;
and the second connecting sheet is welded with a plurality of second lugs of the core pack.
10. The lithium battery of claim 9, wherein the battery is configured to provide the battery with a battery power,
when the number of the core packages in the thickness direction is odd, the first pole and the second pole are respectively symmetrical with the corresponding first pole lug and second pole lug of the core package on the central line;
when the number of core packages in the thickness direction is even, the first pole and the second pole are respectively arranged in the middle of two corresponding first pole lugs and the middle of two second pole lugs in the core packages at the two sides on the central line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320986651.7U CN219873965U (en) | 2023-04-27 | 2023-04-27 | Dislocation utmost point post top cap and lithium cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320986651.7U CN219873965U (en) | 2023-04-27 | 2023-04-27 | Dislocation utmost point post top cap and lithium cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219873965U true CN219873965U (en) | 2023-10-20 |
Family
ID=88323798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320986651.7U Active CN219873965U (en) | 2023-04-27 | 2023-04-27 | Dislocation utmost point post top cap and lithium cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219873965U (en) |
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2023
- 2023-04-27 CN CN202320986651.7U patent/CN219873965U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |