CN218975748U - Annotate liquid structure and formation equipment - Google Patents
Annotate liquid structure and formation equipment Download PDFInfo
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- CN218975748U CN218975748U CN202223166366.5U CN202223166366U CN218975748U CN 218975748 U CN218975748 U CN 218975748U CN 202223166366 U CN202223166366 U CN 202223166366U CN 218975748 U CN218975748 U CN 218975748U
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- liquid injection
- column
- cavity
- gas collecting
- injection cavity
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- 239000007788 liquid Substances 0.000 title claims abstract description 210
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 31
- 238000002347 injection Methods 0.000 claims abstract description 220
- 239000007924 injection Substances 0.000 claims abstract description 220
- 239000000126 substance Substances 0.000 claims description 13
- 238000003780 insertion Methods 0.000 claims description 8
- 230000037431 insertion Effects 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 17
- 239000003792 electrolyte Substances 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 7
- 238000009423 ventilation Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 6
- 230000037452 priming Effects 0.000 description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
- 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
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- Filling, Topping-Up Batteries (AREA)
Abstract
The utility model belongs to the technical field of batteries, and discloses a liquid injection structure and formation equipment, wherein the liquid injection structure comprises a first liquid injection column and a second liquid injection column; the first liquid injection column is provided with a first liquid injection cavity, the first liquid injection cavity is arranged on one side of the central axis of the first liquid injection column, and the first liquid injection cavity is connected with the outside of the power supply; the second liquid injection column is coaxially and rotatably connected with the first liquid injection column, a second liquid injection cavity is formed in the second liquid injection column, the second liquid injection cavity is formed in one side of the central axis of the second liquid injection column, and the second liquid injection cavity is communicated with the inside of the battery cell; the first liquid injection column and the second liquid injection column relatively rotate, and the first liquid injection cavity can be communicated with the second liquid injection cavity; or the first liquid injection column and the second liquid injection column rotate relatively, and the first liquid injection cavity and the second liquid injection cavity are staggered. The electrolyte injection structure can be used for injecting electrolyte into the battery cell, and sealing is formed after the electrolyte injection is completed, and the electrolyte injection structure can be used as a vent hole for formation gas in the subsequent formation process, so that the sealing and ventilation functions are realized, and the operation is simple and convenient.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a liquid injection structure and formation equipment.
Background
Lithium ion battery formation refers to the process of first charging a lithium ion battery in order to render the battery electrochemically active. The current formation process generally keeps a vacuum pumping negative pressure state continuously, and in the process, a large amount of free electrolyte is pumped out of the battery along with the gas, so that the electrolyte is wasted.
At present, a liquid injection hole of a battery is a through hole, and when electrolyte is injected, the electrolyte enters a battery core of the battery through the liquid injection hole by a liquid injection nozzle. After the liquid injection is completed, the liquid injection hole is plugged and sealed by using the sealing nail, so that the sealing performance of the battery cell after the liquid injection is ensured, and the leakage of the battery cell is prevented. The sealing mode of the sealing nail for sealing the liquid injection hole is a temporary sealing mode before sealing the welding nail at the liquid injection port, the sealing mode has a single function, and the installation of the sealing nail is complex.
Therefore, a liquid injection structure and a chemical forming apparatus are needed to solve the above problems.
Disclosure of Invention
According to one aspect of the utility model, an object of the utility model is to provide a liquid injection structure, which can inject electrolyte into a battery cell, form a seal after the electrolyte injection is completed, and can be used as a vent hole for formation gas in a subsequent formation process, so that the sealing and ventilation functions are realized, and the operation is simple.
To achieve the purpose, the utility model adopts the following technical scheme:
annotate liquid structure includes: a first liquid injection column and a second liquid injection column; the first liquid injection column is provided with a first liquid injection cavity, the first liquid injection cavity is arranged on one side of the central axis of the first liquid injection column, and the first liquid injection cavity is connected with the outside of the core; the second liquid injection column is coaxially and rotatably connected with the first liquid injection column, a second liquid injection cavity is formed in the second liquid injection column, the second liquid injection cavity is formed in one side of the central axis of the second liquid injection column, and the second liquid injection cavity is communicated with the inside of the battery cell; the first liquid injection column and the second liquid injection column relatively rotate, and the first liquid injection cavity can be communicated with the second liquid injection cavity; or the first liquid injection column and the second liquid injection column rotate relatively, and the first liquid injection cavity and the second liquid injection cavity are staggered.
As a preferable scheme of the liquid injection structure provided by the utility model, the central axis of the first liquid injection cavity is parallel to the central axis of the first liquid injection column, and the central axis of the second liquid injection cavity is parallel to the central axis of the second liquid injection column.
As the preferable scheme of the liquid injection structure provided by the utility model, the diameter of the first liquid injection cavity is smaller than the radius of the first liquid injection column, and the diameter of the second liquid injection cavity is smaller than the radius of the second liquid injection column.
As the preferable scheme of the liquid injection structure provided by the utility model, the liquid injection structure further comprises a first limiting piece and a second limiting piece, wherein the first limiting piece is arranged at the top of the first liquid injection column in a ring mode and is movably clamped on the battery cell, and the second limiting piece is arranged at the bottom of the second liquid injection column in a ring mode and is clamped on the battery cell.
As the preferable scheme of the liquid injection structure provided by the utility model, the first limiting piece and the second limiting piece are metal ring pieces.
As the preferable scheme of the liquid injection structure provided by the utility model, the first liquid injection column and the second liquid injection column are rubber columns.
According to another aspect of the present utility model, it is an object to provide a chemical conversion apparatus capable of collecting chemical conversion gas for recycling.
To achieve the purpose, the utility model adopts the following technical scheme:
the formation equipment comprises the formation gas collecting device and further comprises the liquid injection structure in any scheme, wherein the formation gas collecting device is detachably connected with the liquid injection structure, and formation gas in the battery cell enters the formation gas collecting device through the liquid injection structure.
As the preferable scheme of the formation equipment provided by the utility model, the formation gas collecting device comprises a gas collecting tube and a gas collecting bag, wherein the gas collecting tube is communicated with the gas collecting bag, and the gas collecting tube can be inserted into the first liquid injection cavity.
As the preferable scheme of the formation equipment provided by the utility model, the outer diameter of the gas collecting tube is equal to the inner diameter of the first liquid injection cavity.
As the preferable scheme of the formation equipment provided by the utility model, the end part of the gas collecting tube, which is far away from the gas collecting bag, is provided with the insertion guide part, and the plane of the opening of the insertion guide part is inclined relative to the central axis of the gas collecting tube.
The utility model has the beneficial effects that:
the liquid injection structure provided by the utility model comprises a first liquid injection column and a second liquid injection column. The first liquid injection column is provided with a first liquid injection cavity, the first liquid injection cavity is arranged at one side of the central axis of the first liquid injection column, and the first liquid injection cavity is connected with the outside of the core; the second liquid injection column is coaxially and rotatably connected with the first liquid injection column, a second liquid injection cavity is formed in the second liquid injection column, the second liquid injection cavity is formed in one side of the central axis of the second liquid injection column, and the second liquid injection cavity is communicated with the inside of the battery cell. The first liquid injection column and the second liquid injection column can relatively rotate, that is, when the first liquid injection column and the second liquid injection column relatively rotate to the state that the first liquid injection cavity is communicated with the second liquid injection cavity, the process of injecting liquid into the battery cell or discharging chemical gas can be performed; when the first liquid injection column and the second liquid injection column relatively rotate until the first liquid injection cavity and the second liquid injection cavity are misplaced, sealing can be formed, and the inner space and the outer space of the battery cell are blocked. The dual functions of sealing and ventilation of the battery cell can be realized through rotation, and the operation is simple and convenient.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.
FIG. 1 is a schematic diagram of a liquid injection structure according to an embodiment of the present utility model;
FIG. 2 is a schematic structural diagram of a gas collecting device according to an embodiment of the present utility model;
fig. 3 is a schematic structural diagram of a formation apparatus according to an embodiment of the present utility model.
In the figure:
10. a chemical gas collecting device; 11. a gas collecting tube; 12. a gas collecting bag; 13. an insertion guide portion;
100. a first liquid injection column; 110. a first liquid injection cavity;
200. a second liquid injection column; 210. a second liquid injection cavity;
300. a first limiting piece;
400. and the second limiting piece.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the 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 present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", "left", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
Fig. 1 shows a schematic structural diagram of a liquid injection structure according to an embodiment of the present utility model. Referring to fig. 1, the present embodiment provides a liquid injection structure. The priming structure includes a first priming column 100 and a second priming column 200. The first liquid injection column 100 and the second liquid injection column 200 are coaxially arranged and are installed in the liquid injection hole of the battery cell.
Specifically, the first liquid injection column 100 is provided with a first liquid injection cavity 110, the first liquid injection cavity 110 is provided at one side of the central axis of the first liquid injection column 100, and the first liquid injection cavity 110 is connected with the outside of the core. The second liquid injection column 200 is coaxially and rotatably connected with the first liquid injection column 100, the second liquid injection column 200 is provided with a second liquid injection cavity 210, the second liquid injection cavity 210 is provided at one side of the central axis of the second liquid injection column 200, and the second liquid injection cavity 210 is communicated with the inside of the battery cell. The first priming column 100 and the second priming column 200 are relatively rotatable. When the first liquid injection column 100 and the second liquid injection column 200 relatively rotate to the first liquid injection cavity 110 to be communicated with the second liquid injection cavity 210, the process of injecting liquid into the battery cell or discharging chemical gas can be performed; when the first injection column 100 and the second injection column 200 relatively rotate until the first injection cavity 110 and the second injection cavity 210 are dislocated, a seal can be formed to block the internal space and the external space of the cell. The liquid injection structure can realize the sealing or ventilation function of the liquid injection hole of the battery cell through the relative rotation of all the components.
More specifically, the central axis of the first injection cavity 110 is parallel to the central axis of the first injection column 100, and the central axis of the second injection cavity 210 is parallel to the central axis of the second injection column 200. Through the above arrangement, when the first liquid injection cavity 110 and the second liquid injection cavity 210 are communicated, a straight cylindrical liquid injection passage can be formed, the turning or the folding angle in the passage is reduced, the efficiency of injecting liquid into the battery cell is convenient to improve, and the electrolyte can be prevented from remaining in the liquid injection passage.
More specifically, the diameter of the first injection cavity 110 is smaller than the radius of the first injection column 100, and the diameter of the second injection cavity 210 is smaller than the radius of the second injection column 200. Through the arrangement, when the first liquid injection cavity 110 and the second liquid injection cavity 210 are misplaced, the first liquid injection cavity and the second liquid injection cavity are completely separated, and the sealing effect between the first liquid injection cavity and the second liquid injection cavity is guaranteed.
Preferably, in the present embodiment, the first liquid injection column 100 and the second liquid injection column 200 are both rubber columns. Through the arrangement, the sealing performance of the liquid injection structure can be guaranteed. In other embodiments, other materials may be selected, and the embodiments are not limited herein.
With continued reference to fig. 1, the liquid injection structure further includes a first limiting plate 300 and a second limiting plate 400, where the first limiting plate 300 is annularly disposed at the top of the first liquid injection column 100 and rotatably clamped in an upper slot of the wall of the liquid injection hole of the electric core, and the second limiting plate 400 is annularly disposed at the bottom of the second liquid injection column 200 and is clamped in a lower slot of the wall of the liquid injection hole of the electric core. The first limiting piece 300 and the second limiting piece 400 can form positioning on the first liquid injection column 100 and the second liquid injection column 200, ensure that the first liquid injection column 100 is always propped against and pressed on the second liquid injection column 200, prevent the problem of electrolyte leakage when rotating the first liquid injection column 100, and simultaneously prevent the liquid injection passage formed by the communication of the first liquid injection cavity 110 and the second liquid injection cavity 210 from leakage at the joint of the first liquid injection column 100 and the second liquid injection column 200.
Alternatively, in the present embodiment, the first limiting piece 300 and the second limiting piece 400 are metal ring pieces. In other embodiments, the first limiting piece 300 and the second limiting piece 400 may be made of other rigid and hard materials with certain supporting properties, which is not limited herein.
Fig. 2 shows a schematic structural diagram of a formation gas collecting device provided by an embodiment of the present utility model, and fig. 3 shows a schematic structural diagram of a formation apparatus provided by an embodiment of the present utility model. Referring to fig. 2 and 3, the present embodiment also provides a forming apparatus. The formation equipment comprises the formation gas collecting device 10 and further comprises the liquid injection structure provided by the embodiment. The chemical gas collecting device 10 is detachably connected to the liquid injection structure, and chemical gas in the battery core enters the chemical gas collecting device 10 through the liquid injection structure.
Specifically, referring to fig. 2, the chemical vapor deposition apparatus 10 includes a gas collecting tube 11 and a gas collecting bag 12, wherein the gas collecting tube 11 is connected to the gas collecting bag 12 and can be inserted into the first liquid injection cavity 110. That is, the gas collecting tube 11 can guide the formation gas in the cell into the gas collecting bag 12 for collection, so that the formation gas can be reused later.
More specifically, the outer diameter of the gas collecting tube 11 is equal to the inner diameter of the first injection cavity 110. That is, after the gas collecting tube 11 is inserted into the first liquid injection cavity 110, the gas collecting tube 11 can tightly abut against the inner wall of the first liquid injection cavity 110, the gas collecting tube 11 can serve as a handle, and the rotation of the first liquid injection column 100 can be easily realized through the gas collecting tube 11.
Preferably, referring to fig. 2, an insertion guide portion 13 is provided at an end of the header 11 remote from the gas collecting bag 12, and a plane in which an opening of the insertion guide portion 13 is located is inclined with respect to a central axis of the header 11. In this embodiment, the plane where the opening at one end of the gas collecting tube 11 far away from the gas collecting bag 12 is disposed at an included angle with the central axis of the gas collecting tube 11, that is, the end of the gas collecting tube 11 forms a tip, which is used as the insertion guiding portion 13, so that the gas collecting tube 11 is conveniently inserted into the first liquid injection cavity 110, and the opening area of the end of the gas collecting tube 11 can be ensured, thereby avoiding affecting the liquid injection efficiency and the exhaust efficiency.
It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.
Claims (10)
1. Annotate liquid structure, its characterized in that includes:
the first liquid injection column (100), a first liquid injection cavity (110) is formed in the first liquid injection column (100), the first liquid injection cavity (110) is formed in one side of the central axis of the first liquid injection column (100), and the first liquid injection cavity (110) is connected with the outside of the core;
the second liquid injection column (200) is coaxially and rotatably connected with the first liquid injection column (100), a second liquid injection cavity (210) is formed in the second liquid injection column (200), the second liquid injection cavity (210) is formed in one side of the central axis of the second liquid injection column (200), and the second liquid injection cavity (210) is communicated with the inside of the battery cell;
the first liquid injection column (100) and the second liquid injection column (200) rotate relatively, and the first liquid injection cavity (110) can be communicated with the second liquid injection cavity (210); or alternatively, the first and second heat exchangers may be,
the first liquid injection column (100) and the second liquid injection column (200) rotate relatively, and the first liquid injection cavity (110) and the second liquid injection cavity (210) are staggered.
2. The filling structure according to claim 1, wherein a central axis of the first filling chamber (110) is parallel to a central axis of the first filling column (100), and a central axis of the second filling chamber (210) is parallel to a central axis of the second filling column (200).
3. The filling structure according to claim 1, wherein the diameter of the first filling chamber (110) is smaller than the radius of the first filling column (100), and the diameter of the second filling chamber (210) is smaller than the radius of the second filling column (200).
4. A liquid injection structure according to any one of claims 1 to 3, further comprising a first limiting piece (300) and a second limiting piece (400), wherein the first limiting piece (300) is annularly arranged at the top of the first liquid injection column (100) and movably clamped to the battery cell, and the second limiting piece (400) is annularly arranged at the bottom of the second liquid injection column (200) and clamped to the battery cell.
5. The liquid injection structure of claim 4, wherein the first limiting piece (300) and the second limiting piece (400) are metal ring pieces.
6. A liquid injection structure according to any one of claims 1-3, wherein the first liquid injection column (100) and the second liquid injection column (200) are rubber columns.
7. The formation equipment is characterized by comprising a formation gas collection device (10) and the liquid injection structure according to any one of claims 1-6, wherein the formation gas collection device (10) is detachably connected to the liquid injection structure, and formation gas in an electric core enters the formation gas collection device (10) through the liquid injection structure.
8. The chemical conversion equipment according to claim 7, characterized in that the chemical conversion gas collecting device (10) comprises a gas collecting tube (11) and a gas collecting bag (12), the gas collecting tube (11) is communicated with the gas collecting bag (12), and the gas collecting tube (11) can be inserted into the first liquid injection cavity (110).
9. The chemical conversion equipment according to claim 8, characterized in that the outer diameter of the header (11) is equal to the inner diameter of the first liquid injection chamber (110).
10. The chemical conversion equipment according to claim 8 or 9, characterized in that the end of the gas collecting tube (11) remote from the gas collecting bag (12) is provided with an insertion guide (13), the plane of the opening of the insertion guide (13) being inclined relative to the central axis of the gas collecting tube (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223166366.5U CN218975748U (en) | 2022-11-28 | 2022-11-28 | Annotate liquid structure and formation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223166366.5U CN218975748U (en) | 2022-11-28 | 2022-11-28 | Annotate liquid structure and formation equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218975748U true CN218975748U (en) | 2023-05-05 |
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ID=86156727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223166366.5U Active CN218975748U (en) | 2022-11-28 | 2022-11-28 | Annotate liquid structure and formation equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218975748U (en) |
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2022
- 2022-11-28 CN CN202223166366.5U patent/CN218975748U/en active Active
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