CN210182477U - Cylindrical lithium ion battery liquid injection sleeve - Google Patents
Cylindrical lithium ion battery liquid injection sleeve Download PDFInfo
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- CN210182477U CN210182477U CN201920816222.9U CN201920816222U CN210182477U CN 210182477 U CN210182477 U CN 210182477U CN 201920816222 U CN201920816222 U CN 201920816222U CN 210182477 U CN210182477 U CN 210182477U
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- liquid
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- liquid injection
- lithium ion
- ion battery
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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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Abstract
The utility model discloses a cylinder lithium ion battery annotates liquid sleeve pipe, annotate the liquid sleeve pipe including annotating liquid chamber, utmost point ear chamber, sealing washer, annotating liquid sleeve pipe wall and utmost point ear chamber wall. The height H of the liquid injection sleeve is 1/3-1 of the height of the cylindrical lithium ion battery; the included angle range of the liquid injection sleeve wall and the lug cavity wall is 0 degrees < x <90 degrees, and x is the included angle; the range of the vertical height H of the lug cavity wall is 0< H < 0.8H. The utility model discloses an annotate the liquid sleeve pipe and can effectively avoid the electrolyte to inject utmost point ear surface, reduce the manual work and wipe utmost point ear process, improve and annotate liquid efficiency, reduce the loss, reduction in production cost.
Description
Technical Field
The utility model belongs to the technical field of cylinder lithium ion battery makes, concretely relates to cylinder lithium ion battery annotates liquid sleeve pipe.
Background
Along with the continuous improvement of lithium ion battery energy density, battery capacity also constantly increases, and the chemical substance of electricity core inside constantly increases, leads to reserving less and less for the position of rolling up the core, and the infiltration of electrolyte is more difficult. In particular, the inside of the cylindrical lithium ion battery is very tight, so that the electrolyte cannot immediately infiltrate into the winding core, and the electrolyte loss and pollution are easily caused.
Chinese patent CN 106099026 discloses a method for improving the sealing performance of battery liquid injection, which comprises placing a cylindrical body with an adhesive surface into the battery case before injecting liquid into the battery, adhering the cylindrical body to the inner wall of the battery case, and then inserting the liquid injection head into the upper part of the battery through the cylindrical body to inject liquid. The invention does not increase excessive cost and manufacturing procedures, is simple and easy to operate, can improve the liquid injection sealing effect of the battery and reduce the residual liquid amount on the inner wall of the shell. However, the adhesive on the adhesive tape used in the invention has the risk of being dissolved by the electrolyte, and enters the core together with the electrolyte, and the electrolyte is directly injected to the surface of the tab by the liquid injection mode, so that a working procedure of wiping the tab is added before the cap is welded, which wastes manpower and delays production. Therefore, it is necessary to prepare a liquid injection device which can improve the liquid injection efficiency.
Disclosure of Invention
To the problem that exists now, an object of the utility model is to provide a cylinder lithium ion battery annotates liquid sleeve pipe aims at improving cylinder lithium ion battery's notes liquid efficiency, reduction in production cost.
In order to achieve the above object, the utility model adopts the following technical scheme:
a liquid injection sleeve for a cylindrical lithium ion battery comprises a liquid injection cavity, a polar lug cavity, a sealing ring, a liquid injection sleeve wall and a polar lug cavity wall.
And the height H of the liquid injection sleeve is 1/3-1 of the height of the cylindrical lithium ion battery.
The included angle range of the liquid injection sleeve wall and the lug cavity wall is 0 degrees < x <90 degrees, and x is the included angle.
The range of the vertical height H of the lug cavity wall is 0< H < 0.8H.
Electrolyte can follow and annotate liquid sleeve wall and utmost point ear chamber wall flow to have most electrolyte to stop and annotate the liquid intracavity, through the evacuation, discharge electric core inside air, resume atmospheric pressure again, inside the core is rolled up to electrolyte infiltration electric core fast.
Preferably, the height H of the liquid injection sleeve is 2/3-1 of the height of the cylindrical lithium ion battery.
Preferably, the included angle range between the wall of the liquid injection sleeve and the wall of the tab cavity is 30 degrees < x <60 degrees, and x is the included angle.
Preferably, the vertical height H of the tab cavity wall ranges from 0< H < 0.5H.
The beneficial effects of the utility model reside in that: the liquid injection sleeve can effectively prevent electrolyte from being injected to the surface of the lug, reduces the manual lug wiping procedure, improves the liquid injection efficiency, reduces the loss and reduces the production cost.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, serve to explain the invention and not to limit the invention.
Fig. 1 is a cross-sectional view of the liquid injection sleeve of the present invention.
Fig. 2 is a cross-sectional view of the polar ear cavity of the present invention.
In the figure 1, 1 is a liquid injection cavity, 2-1 and 2-2 are liquid injection sleeve walls, 3 is a lug cavity wall, 4 is a lug cavity, and 5 is a sealing ring.
In fig. 2, H is the height of the liquid injection sleeve, x is the included angle between the wall of the liquid injection sleeve and the wall of the tab cavity, H is the vertical height of the wall of the tab cavity, and L is the length of the inclined plane of the wall of the tab cavity.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments, not all embodiments, of the present invention. Based on the embodiments in the present invention, the ordinary skill in the art and the equipment personnel can obtain other embodiments without creative work, which all belong to the protection scope of the present invention.
The specific implementation mode of the utility model is as follows:
the utility model provides a cylinder lithium ion battery annotates liquid sleeve pipe, annotate the liquid sleeve pipe including annotating liquid chamber, utmost point ear chamber, sealing washer, annotating liquid casing wall and utmost point ear chamber wall. The height H of the liquid injection sleeve is 2/3 of the height of the cylindrical lithium ion battery; the included angle between the wall of the liquid injection sleeve and the wall of the lug cavity is 60 degrees; the vertical height H of the wall of the lug cavity is 0.5H. Electrolyte can follow and annotate liquid sleeve wall and utmost point ear chamber wall flow to have most electrolyte to stop and annotate the liquid intracavity, through the evacuation, discharge electric core inside air, resume atmospheric pressure again, inside the core is rolled up to electrolyte infiltration electric core fast.
The utility model provides a cylinder lithium ion battery annotates liquid sleeve pipe can effectively improve cylinder lithium ion battery's notes liquid efficiency, reduction in production cost.
The above description is only an example and an illustration of the concept of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modification, equivalent change and modification of the above embodiments by the technical entity of the present invention all still belong to the technical solution scope of the present invention.
Claims (1)
1. A cylindrical lithium ion battery liquid injection sleeve comprises a liquid injection cavity, a polar lug cavity, a sealing ring, a liquid injection sleeve wall and a polar lug cavity wall, and is characterized in that the height H of the liquid injection sleeve is 1/3-1 of the height of a cylindrical lithium ion battery; the included angle range of the liquid injection sleeve wall and the lug cavity wall is 0 degrees < x <90 degrees, and x is the included angle; the range of the vertical height H of the lug cavity wall is 0< H < 0.8H.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920816222.9U CN210182477U (en) | 2019-06-01 | 2019-06-01 | Cylindrical lithium ion battery liquid injection sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920816222.9U CN210182477U (en) | 2019-06-01 | 2019-06-01 | Cylindrical lithium ion battery liquid injection sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210182477U true CN210182477U (en) | 2020-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920816222.9U Active CN210182477U (en) | 2019-06-01 | 2019-06-01 | Cylindrical lithium ion battery liquid injection sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210182477U (en) |
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2019
- 2019-06-01 CN CN201920816222.9U patent/CN210182477U/en active Active
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