CN217215018U - Current collecting disc and cylindrical battery - Google Patents
Current collecting disc and cylindrical battery Download PDFInfo
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- CN217215018U CN217215018U CN202221013012.4U CN202221013012U CN217215018U CN 217215018 U CN217215018 U CN 217215018U CN 202221013012 U CN202221013012 U CN 202221013012U CN 217215018 U CN217215018 U CN 217215018U
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- main body
- hole
- current collecting
- battery
- sealing ring
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model provides a current collector and cylinder battery relates to the technical field of cylinder lithium cell, and this current collector includes the current collector main part one side of keeping away from electric core main part of current collector main part still is provided with at least one support arch, support arch makes the orientation of current collector main part one side of electric core main part forms the second guiding gutter, just the second guiding gutter with first guiding gutter intercommunication. The utility model provides a current collecting plate main body of the current collecting plate is provided with a first diversion trench, when the current collecting plate is welded with the cell main body, the first diversion trench is beneficial to the electrolyte to be infiltrated into the cell main body, thereby improving the infiltration efficiency of the cell main body; the support bulge is arranged on the current collecting disc and forms a second flow guide groove, and the second flow guide groove reduces the area of direct contact between the current collecting disc and the cell main body, so that the electrolyte can circulate more smoothly.
Description
Technical Field
The utility model belongs to the technical field of the technique of cylinder lithium cell and specifically relates to a current collector dish and cylinder battery are related to.
Background
With the development of electric automobiles, cost control of batteries is always a pain point in the industry, and cost control of many battery manufacturers cannot lead to profit failure or even loss, thereby causing yield failure.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a current collection dish and cylinder battery to alleviate the cost of battery and constantly improve, reduced the technical problem of product competitiveness.
In a first aspect, the utility model provides a current collecting plate, including a current collecting plate main body, a first perforation is provided on the current collecting plate main body, at least one first bulge is provided on one side of the current collecting plate main body away from an electric core main body, and the first bulge makes one side of the current collecting plate main body facing the electric core main body form a first diversion trench, and the first diversion trench extends from the edge of the current collecting plate main body to the first perforation;
and one side of the current collecting disc main body, which is far away from the battery core main body, is also provided with at least one supporting bulge, the supporting bulge enables one side of the current collecting disc main body, which faces the battery core main body, to form a second flow guide groove, and the second flow guide groove is communicated with the first flow guide groove.
In an alternative embodiment, the collecting disc main body is circular, and the first through hole is arranged in the center of the collecting disc main body.
In an alternative embodiment, three first protrusions are provided on the collecting disc body, and the three first protrusions are uniformly arranged along the circumferential direction of the first through hole.
In an alternative embodiment, three support protrusions are arranged on the collecting tray body, and the three support protrusions are uniformly arranged along the circumferential direction of the first through hole.
The utility model provides a current collecting plate main body of the current collecting plate is provided with a first diversion trench, when the current collecting plate is welded with the cell main body, the first diversion trench is beneficial to the electrolyte to be infiltrated into the cell main body, thereby improving the infiltration efficiency of the cell main body; the support protrusions are arranged on the current collecting disc and form second flow guide grooves, and the second flow guide grooves reduce the area of the current collecting disc in direct contact with the battery cell main body, so that the electrolyte can circulate more smoothly.
In a second aspect, the present invention provides a cylindrical battery comprising the current collecting plate according to any one of the above embodiments.
In an optional embodiment, the battery further comprises a cell main body and a battery shell, wherein an upper opening is formed in one end of the battery shell, the cell main body is arranged in the battery shell, and the current collecting plate is welded to one end, facing the upper opening, of the cell main body.
In an optional embodiment, the battery further comprises a sealing ring and a cover plate, wherein the sealing ring is arranged on one side of the sealing ring, which is far away from the battery cell main body, and forms an accommodating cavity, and the cover plate is arranged in the accommodating cavity;
the sealing ring and the cover plate are sequentially installed in the battery shell, the cover plate is isolated from the battery shell through the sealing ring, a rolling groove is formed in the battery shell, and the rolling groove is located between the sealing ring and the battery cell main body.
In an optional embodiment, a blind hole corresponding to the support protrusion on the current collecting disc one to one is formed in one side, away from the battery cell main body, of the cover plate;
the seal ring is provided with avoidance holes corresponding to the blind holes one by one, and the support protrusions are welded with the cover plate.
In an optional embodiment, the cover plate is provided with a liquid injection hole, and the sealing ring is provided with a first through hole corresponding to the liquid injection hole.
In an optional embodiment, the cover plate is provided with an explosion-proof hole, and the sealing ring is provided with a second through hole corresponding to the explosion-proof hole.
The utility model also provides a cylinder battery, this cylinder battery adopt foretell current collecting disc to have all beneficial effect of current collecting disc.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a current collecting plate according to an embodiment of the present invention;
FIG. 2 is a schematic view of another angled construction of the collector plate shown in FIG. 1;
fig. 3 is a schematic structural diagram of a cylindrical battery according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view A-A of the cylindrical battery shown in FIG. 3;
FIG. 5 is a partially enlarged view B of a schematic sectional structure A-A of the cylindrical battery shown in FIG. 4;
fig. 6 is an exploded view of the cylindrical battery shown in fig. 3;
fig. 7 is a schematic structural view of a cap plate of the cylindrical battery shown in fig. 6;
fig. 8 is a schematic structural view of a gasket of the cylindrical battery shown in fig. 6 in a natural state.
An icon: 100-a collector disk body; 200-a first protrusion; 300-support protrusions; 400-first perforation; 500-a first guiding gutter; 600-a second guiding gutter; 700-a cover plate; 800-liquid injection hole; 900-blind hole; 110-a sealing ring; 120-avoiding holes; 130-a first via; 140-a seal ring; 150-a battery case; 160-rolling groove; 170-cell body.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Examples
Referring to fig. 1 to 2, the present invention provides a current collecting plate, including a current collecting plate main body 100, a first through hole 400 is provided on the current collecting plate main body 100, at least one first protrusion 200 is provided on one side of the current collecting plate main body 100 away from a cell main body 170, and the first protrusion 200 makes one side of the current collecting plate main body 100 facing the cell main body 170 form a first guiding groove 500, and the first guiding groove 500 extends from the edge of the current collecting plate main body 100 to the first through hole 400;
at least one support protrusion 300 is further disposed on one side of the manifold body 100, which is away from the cell body 170, and the support protrusion 300 enables one side of the manifold body 100, which faces the cell body 170, to form a second flow guide groove 600, and the second flow guide groove 600 is communicated with the first flow guide groove 500.
In some embodiments, the manifold body 100 of the manifold is provided with a first through hole 400, the first through hole 400 generally corresponds to the core winding hole of the cell body 170, the manifold body 100 is provided with a plurality of first protrusions 200, the first protrusions 200 protrude towards the side away from the cell body 170, so that the side of the manifold body 100 facing the cell body 170 forms a first flow guiding groove 500, and the first flow guiding groove 500 can guide the electrolyte outside the cell body 170 to the first through hole 400; the plurality of support protrusions 300 are arranged on the current collecting plate body 100, and the second guide grooves 600 formed by the support protrusions 300 are communicated with the first guide grooves 500, so that the electrolyte can flow into the second guide grooves 600 through the first guide grooves 500, the electrolyte is circulated more smoothly, and the electrolyte can be better soaked into the battery cell body 170.
In an alternative embodiment, the collecting disc body 100 has a circular shape, and the first through hole 400 is provided at the center of the collecting disc body 100.
In an alternative embodiment, three first protrusions 200 are provided on the collecting disc body 100, and the three first protrusions 200 are uniformly arranged along the circumferential direction of the first through hole 400.
In an alternative embodiment, three support protrusions 300 are provided on the collecting tray body 100, and the three support protrusions 300 are uniformly arranged along the circumferential direction of the first through hole 400.
In some embodiments, the collecting plate body 100 is circular, the first through hole 400 is provided at the center of the collecting plate body 100, the three first protrusions 200 are uniformly arranged along the circumferential direction of the first through hole 400, and the three support protrusions 300 are uniformly arranged along the circumferential direction of the first through hole 400, and the support protrusions 300 are generally arranged on the first protrusions 200, thus facilitating the stamping of the first protrusions 200 and the support protrusions 300 on the collecting plate body 100; regardless of the processing, one end of the supporting protrusion 300 is connected to the first protrusion 200, so that the first flow guide groove 500 and the second flow guide groove 600 have larger areas, the direct contact area between the electrolyte and the cell main body 170 is increased, and the electrolyte can be easily infiltrated.
The utility model provides a current collecting disc main body 100 of the current collecting disc is provided with a first diversion trench 500, when the current collecting disc is welded with the cell main body 170, the first diversion trench 500 is beneficial to the electrolyte to be infiltrated into the cell main body 170, thereby improving the infiltration efficiency of the cell main body 170; the support protrusions 300 are arranged on the current collecting plate, the second flow guide grooves 600 are formed by the support protrusions 300, and the area of the current collecting plate in direct contact with the cell main body 170 is reduced by the second flow guide grooves 600, so that the electrolyte can circulate more smoothly.
Referring to fig. 3-8, the present invention provides a cylindrical battery including the current collecting plate according to any one of the previous embodiments.
In an optional embodiment, the battery further includes a cell main body 170 and a battery case 150, an upper opening is disposed at one end of the battery case 150, the cell main body 170 is disposed in the battery case 150, and the current collecting plate is welded to one end of the cell main body 170, which faces the upper opening.
This cylinder battery includes current collecting disc and battery case 150, and the current collecting disc has all been welded at the both ends of electric core main part 170, and the current collecting disc of this application has been welded to electric core main part 170 one end, and the current collecting disc of prior art can be welded in the other end welding, and the current collecting disc of prior art and battery case 150 welding are welded to the other end of this electric core main part 170, and the electric core main part 170 that has the one end of the current collecting disc of this application is towards the upper shed.
Referring to fig. 5 and 8, in an alternative embodiment, the battery further includes a sealing ring 110 and a cover plate 700, a side of the sealing ring 110 away from the cell main body 170 is provided with a sealing ring 140, the sealing ring 140 forms a receiving cavity, and the cover plate 700 is disposed in the receiving cavity;
the sealing ring 110 and the cover plate 700 are sequentially installed in the battery case 150, and the sealing ring 110 isolates the cover plate 700 from the battery case 150; a rolling groove 160 is provided in the battery case 150, and the rolling groove 160 is located between the sealing ring 110 and the cell main body 170.
After the cover plate 700 is installed in the installation cavity of the sealing ring 110, the sealing ring 110 is installed in the battery case 150, and then the cover plate 700 and the sealing ring 110 are fixed in the battery case 150 by rolling and packaging at the upper opening of the battery case 150, at this time, the sealing ring 110 completely isolates the cover plate 700 from the battery case 150. The sealing ring 110 is made of an insulating material, such as teflon and other materials of the sealing ring 110 that are conventional for lithium batteries.
Referring to fig. 5, the sealing ring 110 wraps the side of the cap plate 700 under the compression of the battery case 150 to prevent the cap plate 700 from contacting the battery case 150.
In an alternative embodiment, a blind hole 900 corresponding to the support protrusion 300 on the current collecting plate is disposed on one side of the cover plate 700 away from the cell main body 170;
the seal ring 110 is provided with avoiding holes 120 corresponding to the blind holes 900 one by one, and the support protrusions 300 are welded to the cover plate 700.
The current collecting plate is provided with three supporting protrusions 300, namely, the current collecting plate and the cover plate 700 are provided with three connecting positions, compared with the prior art, the current collecting plate is only connected with the cover plate 700 through the connecting sheet, so that the contact area is increased, heat on the current collecting plate is favorably transferred to the cover plate 700, and the heat dissipation of the current collecting plate is favorably realized.
In an alternative embodiment, the lid plate 700 is provided with a liquid inlet 800, and the packing 110 is provided with a first through hole 130 corresponding to the liquid inlet 800.
In an alternative embodiment, the cover plate 700 is provided with an explosion-proof hole, and the sealing ring 110 is provided with a second through hole corresponding to the explosion-proof hole.
In order to ensure a firm connection of the cover plate 700 and the current collecting plate, the support protrusions 300 of the current collecting plate are welded to the cover plate 700 by welding in the blind holes 900; when the cover plate 700 is mounted on the current collecting plate, the blind holes 900 on the cover plate 700 correspond to the supporting protrusions 300 one by one, and the avoiding holes 120 corresponding to the blind holes 900 are formed in the sealing ring 110, so that the cover plate 700 and the supporting protrusions 300 of the current collecting plate can be welded together, and the cover plate 700 and the current collecting plate can be firmly connected.
The cover plate 700 has a certain thickness, and in order to enable the cover plate 700 to be well welded to the support protrusions 300 of the current collecting plate, blind holes 900 are provided in the cover plate 700, or the cover plate 700 may be partially thinned in another manner to enable the cover plate 700 to be welded to the support protrusions 300 of the current collecting plate.
The cover plate 700 is provided with a liquid injection hole 800, the seal ring 110 is provided with a first through hole 130 corresponding to the liquid injection hole 800, the liquid injection hole 800 is provided with a sealing aluminum nail, the cover plate 700 can also be provided with an explosion-proof hole, the seal ring 110 is provided with a second through hole corresponding to the explosion-proof hole, and the explosion-proof hole is provided with an explosion-proof valve.
The utility model also provides a cylindrical battery, the one end of electricity core casing is connected with battery housing 150, the other end is connected with apron 700, the positive terminal and the apron 700 of general electricity core main part 170 are connected, the negative pole end and the battery housing 150 of electricity core main part 170 are connected, the structure of cylindrical battery has been simplified like this, the process step has been reduced, the manufacturing of battery has been reduced and has been born, this battery housing 150's material generally is the steel, battery housing 150 draws forth the end for the negative pole, the negative pole post cost has been saved, the sealed process of negative pole has been cancelled, sealing reliability has been improved.
The cover plate 700 is generally made of an aluminum sheet, and the cover plate 700 is directly welded with the current collecting disc, so that the cost of a positive pole is saved, a positive pole sealing process is omitted, and the sealing reliability is improved.
The seal of the battery case 150 is sealed by the roller groove 160, reducing the risk of welding-induced welding slag.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A collector plate, comprising a collector plate body (100), wherein a first through hole (400) is formed in the collector plate body (100), at least one first protrusion (200) is formed on one side of the collector plate body (100) away from a cell body (170), the first protrusion (200) forms a first flow guide groove (500) on one side of the collector plate body (100) facing the cell body (170), and the first flow guide groove (500) extends from the edge of the collector plate body (100) to the first through hole (400);
at least one supporting protrusion (300) is further arranged on one side, far away from the cell main body (170), of the current collecting disc main body (100), the supporting protrusion (300) enables one side, facing the cell main body (170), of the current collecting disc main body (100) to form a second flow guide groove (600), and the second flow guide groove (600) is communicated with the first flow guide groove (500).
2. Collecting disc according to claim 1, characterized in that the collecting disc body (100) is circular, the first through hole (400) being provided at the centre of the collecting disc body (100).
3. Collecting disk according to claim 2, characterized in that three first bulges (200) are provided on the collecting disk body (100), the three first bulges (200) being evenly arranged in the circumferential direction of the first through hole (400).
4. Collecting disk according to claim 2, characterized in that three supporting protrusions (300) are provided on the collecting disk body (100), the three supporting protrusions (300) being evenly arranged in the circumferential direction of the first through-hole (400).
5. A cylindrical battery comprising the current collecting disk according to any one of claims 1 to 4.
6. The cylindrical battery as claimed in claim 5, further comprising a cell main body (170) and a battery casing (150), wherein an upper opening is provided at one end of the battery casing (150), the cell main body (170) is disposed in the battery casing (150), and the current collecting plate is welded to one end of the cell main body (170) facing the upper opening.
7. The cylindrical battery according to claim 6, further comprising a sealing ring (110) and a cover plate (700), wherein a sealing ring (140) is arranged on one side of the sealing ring (110) far away from the cell main body (170), the sealing ring (140) forms a containing cavity, and the cover plate (700) is arranged in the containing cavity;
the sealing ring (110) and the cover plate (700) are sequentially arranged in the battery shell (150), and the sealing ring (110) isolates the cover plate (700) from the battery shell (150); a rolling groove (160) is arranged on the battery shell (150), and the rolling groove (160) is positioned between the sealing ring (110) and the battery cell main body (170).
8. The cylindrical battery as claimed in claim 7, wherein one side of the cover plate (700) far away from the battery cell main body (170) is provided with blind holes (900) corresponding to the support protrusions (300) on the current collecting disc one by one;
be provided with on sealing washer (110) and blind hole (900) one-to-one dodge hole (120), support protruding (300) with apron (700) welding.
9. The cylindrical battery according to claim 7, wherein the lid plate (700) is provided with a liquid injection hole (800), and the gasket (110) is provided with a first through hole (130) corresponding to the liquid injection hole (800).
10. The cylindrical battery according to claim 7, wherein the cap plate (700) is provided with an explosion-proof hole, and the sealing ring (110) is provided with a second through hole corresponding to the explosion-proof hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221013012.4U CN217215018U (en) | 2022-04-26 | 2022-04-26 | Current collecting disc and cylindrical battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221013012.4U CN217215018U (en) | 2022-04-26 | 2022-04-26 | Current collecting disc and cylindrical battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217215018U true CN217215018U (en) | 2022-08-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221013012.4U Active CN217215018U (en) | 2022-04-26 | 2022-04-26 | Current collecting disc and cylindrical battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217215018U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115498335A (en) * | 2022-09-28 | 2022-12-20 | 厦门海辰储能科技股份有限公司 | End cover assembly, single battery, battery pack and electric equipment |
-
2022
- 2022-04-26 CN CN202221013012.4U patent/CN217215018U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115498335A (en) * | 2022-09-28 | 2022-12-20 | 厦门海辰储能科技股份有限公司 | End cover assembly, single battery, battery pack and electric equipment |
| CN115498335B (en) * | 2022-09-28 | 2023-09-15 | 厦门海辰储能科技股份有限公司 | End cover assembly, battery monomer, battery pack and electric equipment |
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