CN214043803U - Cover plate assembly of battery and battery - Google Patents
Cover plate assembly of battery and battery Download PDFInfo
- Publication number
- CN214043803U CN214043803U CN202022979409.6U CN202022979409U CN214043803U CN 214043803 U CN214043803 U CN 214043803U CN 202022979409 U CN202022979409 U CN 202022979409U CN 214043803 U CN214043803 U CN 214043803U
- Authority
- CN
- China
- Prior art keywords
- cover plate
- battery
- plate body
- conduit
- electrolyte
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- 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
- 239000007788 liquid Substances 0.000 claims abstract description 41
- 238000002347 injection Methods 0.000 claims abstract description 30
- 239000007924 injection Substances 0.000 claims abstract description 30
- 238000004891 communication Methods 0.000 claims description 9
- 239000003792 electrolyte Substances 0.000 abstract description 41
- 230000000694 effects Effects 0.000 abstract description 4
- 238000002791 soaking Methods 0.000 abstract description 2
- 230000011218 segmentation Effects 0.000 description 9
- 239000000243 solution Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 4
- 238000001802 infusion Methods 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
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
- Filling, Topping-Up Batteries (AREA)
Abstract
The utility model discloses a apron subassembly and battery of battery. The cover plate assembly of the battery is arranged on a shell of the battery and comprises a cover plate body and a guide pipe, wherein the cover plate body is used for plugging the open end of the shell, the guide pipe is positioned on one side, close to the battery core, of the cover plate body, at least one end of the guide pipe extends to a gap between the shell and the battery core, a liquid injection hole is formed in the cover plate body, and the liquid injection hole is communicated with the guide pipe. Annotate the liquid hole and be used for injecting electrolyte to the inside of casing, the pipe is used for guiding the gap between casing and the electric core from annotating the electrolyte that the liquid hole got into, and electrolyte flows to the bottom of casing along the gap between casing and the electric core, prevents that electrolyte from being detained between apron body and electric core, can not lead to the hydrojet phenomenon when flattening the evacuation to avoid extravagant electrolyte and avoid spun electrolyte to pollute housing face and flatten evacuation equipment. In addition, because the guide pipe is positioned at one end of the battery cell close to the cover plate body, the soaking effect of the electrolyte on the battery cell is not influenced.
Description
Technical Field
The utility model relates to a battery technology field especially relates to a battery of apron subassembly of battery and including this apron subassembly.
Background
At present, in lithium ion battery's the production technology, the secondary annotates the back battery and can directly enter into the concora crush technology, the time interval between secondary notes liquid technology and the concora crush technology is too short, electrolyte is not fully absorbed by electric core or electrolyte does not flow to the casing bottom, electrolyte can be detained in the gap between apron and electric core, have electrolyte from annotating liquid hole blowout or by being taken out the pipeline when concora crush evacuation, not only can lead to the waste of electrolyte, can cause the pollution of battery surface and pipeline moreover.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: a cover plate assembly for a battery and a battery are provided, which can prevent liquid from being sprayed during flat pressing and vacuum pumping.
In order to achieve the purpose, the utility model adopts the following technical proposal:
on the one hand, the cover plate component of the battery is arranged on a shell of the battery and comprises a cover plate body and a guide pipe, wherein the cover plate body is used for plugging the open end of the shell, the guide pipe is positioned on one side, close to an electric core, of the cover plate body, at least one end of the guide pipe extends to a gap between the shell and the electric core, a liquid injection hole is formed in the cover plate body, and the liquid injection hole is communicated with the guide pipe.
As a preferable technical solution of the cover plate assembly of the battery, two ends of the conduit respectively extend to a gap between the casing and the battery core, and the liquid injection hole is communicated with a non-end portion of the conduit.
As a preferable technical solution of the cover plate assembly for a battery, the liquid injection hole is communicated with the conduit through a communicating pipe, one end of the communicating pipe is connected with the inner side wall of the liquid injection hole, and the other end of the communicating pipe is connected with the non-end portion of the conduit.
As a preferable technical solution of the cover plate assembly of the battery, one end of the conduit is disposed in the liquid injection hole, and the other end extends to a gap between the casing and the battery core.
As a preferable technical solution of the cover plate assembly of the battery, the duct is inclined toward the battery core from the liquid injection hole to an end of the duct.
As a preferable technical solution of the cover plate assembly of the battery, the end of the conduit does not protrude from the edge of the cover plate body.
As a preferable technical solution of the cover plate assembly of the battery, a support piece is provided on a side surface of the cover plate body close to the electric core, the support piece is close to an edge position of the cover plate body, the support piece protrudes toward the electric core, the support piece is provided with a through hole, and the conduit penetrates through the through hole and extends to a gap between the housing and the electric core.
As a preferred technical scheme of apron subassembly of battery, be provided with two interval distribution's connecting terminal on the apron body, the pipe comprises first segmentation and two sections second segmentation, the both ends of first segmentation respectively through the coupling with the connection can be dismantled to the second segmentation, first segmentation with annotate the liquid hole and all be located two between the connecting terminal, first segmentation is kept away from the one end of second segmentation with communicating pipe connects, the second segmentation is kept away from the one end of first segmentation extends to the casing with between the electricity core.
As a preferable technical solution of the cover plate assembly of the battery, the conduit is a hose.
In another aspect, a battery is provided, which includes the above cover plate assembly.
The utility model has the advantages that: annotate the liquid hole and be used for injecting electrolyte to the inside of casing, the pipe is used for guiding the gap between casing and the electric core from annotating the electrolyte that the liquid hole got into, and electrolyte flows to the bottom of casing along the gap between casing and the electric core, prevents that electrolyte from being detained between apron body and electric core, can not lead to the hydrojet phenomenon when flattening the evacuation to avoid extravagant electrolyte and avoid spun electrolyte to pollute housing face and flatten evacuation equipment. In addition, because the guide pipe is positioned at one end of the battery cell close to the cover plate body, the soaking effect of the electrolyte on the battery cell is not influenced.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is a sectional view of a cap plate assembly of a battery according to an embodiment.
In the figure:
1. a cover plate body; 2. a conduit; 21. a first segment; 22. a second section; 23. a pipe joint; 3. a support member; 4. a through hole; 5. a connection terminal; 6. a communicating pipe; 7. and a liquid injection hole.
Detailed Description
In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1, the present invention provides a cover plate assembly of a battery, which is disposed on a housing of the battery. Wherein, the casing has at least one end open-ended holding tank, and electric core sets up in the holding tank, and the apron subassembly sets up the open end at the casing. It can be understood that the casing and the battery core are spaced apart from each other to form a gap. The cover plate assembly comprises a cover plate body 1 and a guide pipe 2, wherein the cover plate body 1 seals the opening end of the shell, the guide pipe 2 is positioned on one side, close to the battery core, of the cover plate body 1, at least one end of the guide pipe 2 extends to a gap between the shell and the battery core, the cover plate body 1 is provided with a liquid injection hole 7, and the liquid injection hole 7 is communicated with the guide pipe 2. The cover plate body 1 is provided with a connecting terminal 5, and the connecting terminal 5 is connected with an electrode (anode or cathode) of the battery cell to realize the output and input of the electric energy of the battery. Pipe 2 adopts insulating material to make, annotate liquid hole 7 and be used for to the inside injection electrolyte of casing, pipe 2 is used for leading the gap between casing and the electric core from the electrolyte of annotating liquid hole 7 entering, electrolyte flows to the bottom of casing along the gap between casing and the electric core, prevent that electrolyte from being detained between apron body 1 and electric core, can not lead to the hydrojet phenomenon when flattening the evacuation, thereby avoid extravagant electrolyte and avoid spun electrolyte to pollute housing face and flatten evacuation equipment. In addition, because the conduit 2 is located at one end of the battery cell close to the cover plate body 1, the wetting effect of the electrolyte on the battery cell is not affected.
In one embodiment, one end of the conduit 2 is arranged in the liquid injection hole 7, and the other end extends to the gap between the shell and the battery core, so that the conduit 2 is simple in structure and convenient to arrange. After injecting the electrolyte into the liquid injection hole 7, the electrolyte directly flows from one end of the guide pipe 2 to the other end, and then enters the gap between the shell and the battery core.
In another embodiment, two ends of the conduit 2 respectively extend to the gap between the shell and the battery core, and the liquid injection hole 7 is communicated with the non-end part of the conduit 2. It can be understood that, annotate liquid hole 7 and pipe 2's non-tip intercommunication, electrolyte falls into two parts after annotating liquid hole 7 entering pipe 2, partly electrolyte flows from pipe 2's one of them one end, another part flows from pipe 2's the other end, so that electrolyte can flow to the gap between casing and the electric core from pipe 2's both ends simultaneously, not only be favorable to accelerating the speed of injecting electrolyte, avoid electrolyte to be detained in pipe 2 in a large number, and be favorable to dispersing the gap of electrolyte between casing and electric core fast, be favorable to accelerating the speed that the electric core was infiltrated to electrolyte.
Specifically, the liquid injection hole 7 is communicated with the guide pipe 2 through a communication pipe 6, one end of the communication pipe 6 is connected with the inner side wall of the liquid injection hole 7, and the other end of the communication pipe 6 is connected with the non-end part of the guide pipe 2. The two ends of the communicating pipe 6 are respectively connected with the inner side wall of the liquid injection hole 7 and the guide pipe 2, so that on one hand, the electrolyte in the liquid injection hole 7 flows into the guide pipe 2 through the communicating pipe 6; on the other hand, since the end of the communication pipe 6 away from the conduit 2 is connected to the cover body 1, the communication pipe 6 is used to provide a supporting and positioning function for the conduit 2. Of course, in other embodiments, the conduit 2 may be provided with an opening at the non-end portion, the opening communicating with the interior of the conduit 2 and the infusion port 7, the opening of the opening communicating with the infusion port 7 near the open end of the conduit 2, and the infusion port 7 may communicate with the conduit 2 and support and position the conduit 2.
In order to prevent the electrolyte from remaining in the catheter 2 and not completely flowing out of the end of the catheter 2, the catheter 2 is inclined toward the battery core from the injection hole 7 to the end of the catheter 2. Specifically, the angle of inclination of the conduit 2 towards the cell direction is 2 ° to 10 °. In this embodiment, the angle of inclination of the conduit 2 towards the battery cell direction is 2 °, and of course, in other embodiments, the angle of inclination of the conduit 2 can be flexibly adjusted. Because the direction slope of pipe 2 orientation electricity core is favorable to carrying out the water conservancy diversion to electrolyte, guarantees that the inside electrolyte of pipe 2 is whole to flow out from the tip of pipe 2, avoids electrically conductive electrolyte to remain in pipe 2 and leads to pipe 2 hydrojet when flattening the evacuation.
When the cover plate body 1 is sealed at the opening end of the shell, in order to avoid the position interference between the conduit 2 and the shell, the end part of the conduit 2 does not protrude out of the edge of the cover plate body 1. Preferably, the cover body 1 protrudes from the end of the conduit 2. It can be understood that the cover plate body 1 blocks the opening end of the shell, and the inner side wall of the accommodating cavity is connected with the edge of the cover plate body 1 in a sealing mode. Because the tip of pipe 2 does not bulge in the border of apron body 1, hold the inside wall in chamber and the border sealing connection of apron body 1 and not with pipe 2's contact, avoid pipe 2 to influence and be connected between apron body 1 and the casing, in addition, can also reserve the passageway that supplies the electrolyte circulation between pipe 2 and casing.
In an embodiment, a side surface of the cover plate body 1 close to the battery cell is provided with a support piece 3, the support piece 3 is close to the edge position of the cover plate body 1, the support piece 3 protrudes towards the battery cell, the support piece 3 is provided with a through hole 4, and the conduit 2 penetrates through the through hole 4 and extends to a gap between the shell and the battery cell. Specifically, the support 3 is an insulator. The support 3 provides support and positioning for the conduit 2, preventing the conduit 2 from wobbling inside the housing. In this embodiment, the two supporting members 3 are provided, and the two ends of the conduit 2 penetrate through the through holes 4 on the corresponding supporting members 3 respectively and extend to the gap between the casing and the battery cell.
Specifically, the cover plate body 1 is provided with two connection terminals 5 which are respectively distributed at intervals. In this embodiment, the battery cell includes two battery cell monomers, and the two battery cell monomers are connected through the connecting piece, realize two battery cell monomers parallelly connected or establish ties. The electrodes of the battery cell are electrically connected with the connecting terminal 5 through the confluence piece. It can be understood that, during the assembly, one end of the confluence piece is connected with the electrode of the battery core, then the battery core and the confluence piece are placed on the cover plate body 1 together, and then the confluence piece is welded with the connecting terminal 5 on the cover plate body 1. The conduit 2 is composed of a first subsection 21 and two sections of second subsections 22, two ends of the first subsection 21 are detachably connected with the second subsections 22 through pipe joints 23 respectively, the first subsection 21 and the liquid injection hole 7 are located between the two connecting terminals 5, one end, far away from the second subsection 22, of the first subsection 21 is connected with the communicating pipe 6, and one end, far away from the first subsection 21, of the second subsection 22 extends to a position between the shell and the battery core. The conduit 2 is designed to be a split structure, when the conduit is specifically assembled, the two second sections 22 can be detached from the first section 21, the battery core and the bus-bar piece are integrally placed on the cover plate body 1, the bus-bar piece is welded with the connecting terminal 5 of the cover plate body 1, then the second sections 22 are installed in place (namely, the second sections 22 are connected with the first sections 21 through the pipe joints 23, the end parts of the second sections 22 penetrate through the through holes 4 and extend to the gaps between the shell and the battery core), and then sealant is filled in the gaps between the through holes 4 and the conduit 2 to fix the second sections 22 and the supporting piece 3.
Preferably, the conduit 2 is a hose. It can be understood that, due to the limitation of the inner space of the shell, in the process that the cover plate body 1 blocks the opening end of the shell, the electric core or the cover plate body 1 extrudes the conduit 2 easily, the conduit 2 is set to be a hose, and the cover plate body 1 or the electric core is prevented from being scratched by the conduit 2. In addition, because the conduit 2 is a hose, the conduit 2 can be flattened in the shell during packaging, so that the volume of the conduit 2 is reduced, the occupation of the conduit 2 on the shell space is reduced, and the space utilization rate of the battery is improved.
In another embodiment, a battery is also provided, which includes the cover plate assembly with any one of the above structures. The battery is provided with a conduit 2 on a cover plate body 1 of a cover plate assembly, so that the phenomenon of liquid spraying during flat pressing and vacuum pumping is prevented.
It should be noted that, in this specification, the battery cell may be a wound battery cell or a laminated battery cell, where a specific type of the battery cell is not limited, and the number of the battery cells may be one or more.
In the description herein, it is to be understood that the terms "upper," "lower," "left," "right," and the like are used in an orientation or positional relationship based on what is shown in the drawings for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. The cover plate assembly of the battery is arranged on a shell of the battery and is characterized by comprising a cover plate body and a guide pipe, wherein the cover plate body is blocked at the open end of the shell, the guide pipe is positioned at one side, close to an electric core, of the cover plate body, at least one end of the guide pipe extends to the gap between the shell and the electric core, a liquid injection hole is formed in the cover plate body, and the liquid injection hole is communicated with the guide pipe.
2. The cover plate assembly of the battery according to claim 1, wherein both ends of the conduit respectively extend to a gap between the casing and the battery cell, and the liquid injection hole is communicated with a non-end portion of the conduit.
3. The cover plate assembly for a battery according to claim 2, wherein the liquid injection hole is communicated with the guide pipe through a communication pipe, one end of the communication pipe is connected with an inner side wall of the liquid injection hole, and the other end of the communication pipe is connected with a non-end portion of the guide pipe.
4. The cover plate assembly of the battery according to claim 1, wherein one end of the conduit is disposed in the liquid injection hole, and the other end extends to a gap between the casing and the battery cell.
5. The cover plate assembly of the battery according to claim 1, wherein the duct is inclined toward the battery cell from the liquid injection hole to an end of the duct.
6. The battery cover plate assembly of claim 1, wherein the end of the conduit does not protrude beyond the edge of the cover plate body.
7. The cover plate assembly of claim 1, wherein a support member is disposed on a side of the cover plate body close to the battery cell, the support member is close to an edge of the cover plate body, the support member protrudes toward the battery cell, the support member is provided with a through hole, and the conduit penetrates through the through hole and extends to a gap between the housing and the battery cell.
8. The cover plate assembly of the battery according to claim 3, wherein two connection terminals are disposed on the cover plate body at intervals, the conduit is composed of a first segment and two second segments, two ends of the first segment are detachably connected with the second segments through pipe joints respectively, the first segment and the liquid injection hole are both located between the two connection terminals, one end of the first segment, which is far away from the second segment, is connected with the communication pipe, and one end of the second segment, which is far away from the first segment, extends between the housing and the battery core.
9. The cap plate assembly for batteries according to any one of claims 1 to 8, wherein the conduit is a hose.
10. A battery comprising the cap plate assembly of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022979409.6U CN214043803U (en) | 2020-12-10 | 2020-12-10 | Cover plate assembly of battery and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022979409.6U CN214043803U (en) | 2020-12-10 | 2020-12-10 | Cover plate assembly of battery and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214043803U true CN214043803U (en) | 2021-08-24 |
Family
ID=77335718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022979409.6U Active CN214043803U (en) | 2020-12-10 | 2020-12-10 | Cover plate assembly of battery and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214043803U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023065974A1 (en) * | 2021-10-20 | 2023-04-27 | 宁德时代新能源科技股份有限公司 | Battery cell, battery and electric device |
-
2020
- 2020-12-10 CN CN202022979409.6U patent/CN214043803U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023065974A1 (en) * | 2021-10-20 | 2023-04-27 | 宁德时代新能源科技股份有限公司 | Battery cell, battery and electric device |
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