CN210182481U - Cylindrical lithium ion battery liquid injection device - Google Patents
Cylindrical lithium ion battery liquid injection device Download PDFInfo
- Publication number
- CN210182481U CN210182481U CN201921383914.5U CN201921383914U CN210182481U CN 210182481 U CN210182481 U CN 210182481U CN 201921383914 U CN201921383914 U CN 201921383914U CN 210182481 U CN210182481 U CN 210182481U
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- liquid injection
- lithium ion
- ion battery
- cylindrical lithium
- cup body
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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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- 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
Abstract
The utility model discloses a cylindrical lithium ion battery liquid injection device, which comprises a liquid injection cup body, a vacuum channel, a sealing ring, a central extension pipe and a liquid injection cup wall, wherein the liquid injection cup body is funnel-shaped, and the lower end of the liquid injection cup body is communicated with the central extension pipe to form a whole; the vacuum channel is arranged between the walls of the liquid injection cup; the sealing ring is arranged at the position below the outer wall of the liquid injection cup wall. The cup body of the liquid injection device is funnel-shaped, the central extension pipe is arranged below the cup body, so that electrolyte can completely enter the interior of the cylindrical lithium ion battery, meanwhile, the central extension pipe is arranged, so that the electrolyte can be effectively prevented from being injected to the surface of a lug, the manual lug wiping procedure is reduced, the liquid injection efficiency is improved, the loss is reduced, and the production cost is reduced; furthermore the utility model discloses be equipped with vacuum channel, among the evacuation process, gaseous coming out from vacuum channel avoids with electrolyte direct contact, reduces the risk of polluting electrolyte.
Description
Technical Field
The utility model belongs to the technical field of cylinder lithium ion battery annotates the liquid, concretely relates to cylinder lithium ion battery priming device.
Background
At present, the liquid injection process flow of the cylindrical lithium ion battery roughly comprises the steps of installing a liquid injection device, injecting liquid, vacuumizing, recovering atmospheric pressure and the like. However, with the pursuit of energy density, the remaining space of the cylindrical lithium ion roll core after being sleeved into the cylindrical aluminum shell is smaller and smaller, and the liquid injection amount is increased, so that the electrolyte is difficult to enter the shell and the pole piece is slowly infiltrated when the cylindrical lithium ion battery is in liquid injection production, impurities exceed the standard after the electrolyte is exposed in the external environment for a long time, the electrolyte loss is easily caused during liquid injection, and the electrochemical performance of the battery is reduced. In addition, current priming device is mostly cylindrical, annotates liquid in-process electrolyte and directly injects utmost point ear surface, and electrolyte can the adhesion on utmost point ear, needs to increase the process of wiping utmost point ear together before the battery welding block, otherwise causes the phenomenon of block rosin joint easily, but wipes this process of utmost point ear and can only adopt manual operation at present, not only consumes the manpower, is difficult to carry out automated machine production moreover. Therefore, in order to improve the electrolyte injection efficiency, reduce the loss and reduce the production cost, a liquid injection device suitable for a cylindrical lithium ion battery is urgently needed to be developed to meet the current requirements.
Disclosure of Invention
To the problem that exists now, the utility model aims at providing a cylinder lithium ion battery priming device aims at improving cylinder lithium ion battery and annotates liquid efficiency, reduces the loss, reduction in production cost.
In order to achieve the above object, the utility model adopts the following technical scheme:
a cylindrical lithium ion battery liquid injection device comprises a liquid injection cup body, a vacuum channel, a sealing ring, a central extension pipe and a liquid injection cup wall, wherein the liquid injection cup body is funnel-shaped, and the lower end of the liquid injection cup body is communicated with the central extension pipe to form a whole; the vacuum channel is arranged between the walls of the liquid injection cup; the sealing ring is arranged at the position below the outer wall of the liquid injection cup wall.
The vacuum channels are at least more than two and are communicated with the outside and the inside of the cylindrical lithium ion battery.
The diameter of the central extension tube is 2/5-4/5 of a left hole after a winding needle is pulled out when the cylindrical lithium ion battery is wound.
The height of the central extension tube is 1/3-2/3 of the height of the cylindrical lithium ion battery.
The beneficial effects of the utility model reside in that: the cup body of the liquid injection device is funnel-shaped, the central extension pipe is arranged below the cup body, so that electrolyte can completely enter the interior of the cylindrical lithium ion battery, meanwhile, the central extension pipe is arranged, so that the electrolyte can be effectively prevented from being injected to the surface of a lug, the manual lug wiping procedure is reduced, the liquid injection efficiency is improved, the loss is reduced, and the production cost is reduced; furthermore the utility model discloses be equipped with vacuum channel, among the evacuation process, gaseous coming out from vacuum channel avoids with electrolyte direct contact, reduces the risk of polluting electrolyte.
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 front view of the liquid injection device of the present invention.
Fig. 2 is a top view of the liquid injection device of the present invention.
Wherein, the injection cup body 1, the vacuum channel 2, the seal ring 3, the central extension pipe 4 and the injection cup wall 5 are arranged in the injection cup body.
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.
A cylindrical lithium ion battery liquid injection device comprises a liquid injection cup body, a vacuum channel, a sealing ring, a central extension pipe and a liquid injection cup wall, wherein the liquid injection cup body is funnel-shaped, and the lower end of the liquid injection cup body is communicated with the central extension pipe to form a whole; the vacuum channel is arranged between the walls of the liquid injection cup; the sealing ring is arranged at the position below the outer wall of the liquid injection cup wall.
The vacuum channels are at least more than two and are communicated with the outside and the inside of the cylindrical lithium ion battery.
The diameter of the central extension tube is 2/5-4/5 of a left hole after a winding needle is pulled out when the cylindrical lithium ion battery is wound.
The height of the central extension tube is 1/3-2/3 of the height of the cylindrical lithium ion battery.
Before liquid injection, the liquid injection device is installed firstly, namely, when the central extension pipe of the device of the utility model is aligned with the left-over hole after the winding needle is pulled out when the cylindrical lithium ion battery is wound, and meanwhile, the sealing ring arranged at the lower position of the outer wall of the liquid injection cup is in close contact with the cylindrical lithium ion battery to prevent liquid leakage; after injecting the liquid cup with the electrolyte, electrolyte can not all get into the cylinder lithium ion battery immediately, and a majority stays in the cup, and through the evacuation this moment, the cylinder lithium ion battery internal gas gets rid of from vacuum channel, avoids with electrolyte direct contact, then resumes atmospheric pressure, and inside all electrolyte just can all get into the cylinder lithium ion fast.
The utility model provides a cylinder lithium ion battery priming device can effectively improve notes liquid efficiency, reduces the loss, and reduction in production cost avoids electrolyte to receive the pollution.
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 (4)
1. The cylindrical lithium ion battery liquid injection device is characterized by comprising a liquid injection cup body, a vacuum channel, a sealing ring, a central extension pipe and a liquid injection cup wall, wherein the liquid injection cup body is funnel-shaped, and the lower end of the liquid injection cup body is communicated with the central extension pipe to form a whole; the vacuum channel is arranged between the walls of the liquid injection cup; the sealing ring is arranged at the position below the outer wall of the liquid injection cup wall.
2. The liquid injection device for the cylindrical lithium ion battery according to claim 1, wherein at least two vacuum channels are formed and communicate with the outside and the inside of the cylindrical lithium ion battery.
3. The liquid injection device for the cylindrical lithium ion battery as claimed in claim 1, wherein the diameter of the central extension tube is 2/5-4/5 of a hole left after a winding needle is pulled out when the cylindrical lithium ion battery is wound.
4. The liquid injection device for the cylindrical lithium ion battery as claimed in claim 1, wherein the height of the central extension tube is 1/3-2/3 of the height of the cylindrical lithium ion battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921383914.5U CN210182481U (en) | 2019-08-25 | 2019-08-25 | Cylindrical lithium ion battery liquid injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921383914.5U CN210182481U (en) | 2019-08-25 | 2019-08-25 | Cylindrical lithium ion battery liquid injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210182481U true CN210182481U (en) | 2020-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921383914.5U Active CN210182481U (en) | 2019-08-25 | 2019-08-25 | Cylindrical lithium ion battery liquid injection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN210182481U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116613486A (en) * | 2023-07-17 | 2023-08-18 | 宁德时代新能源科技股份有限公司 | Liquid injection safety device, liquid injection method and liquid injection system of battery |
-
2019
- 2019-08-25 CN CN201921383914.5U patent/CN210182481U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116613486A (en) * | 2023-07-17 | 2023-08-18 | 宁德时代新能源科技股份有限公司 | Liquid injection safety device, liquid injection method and liquid injection system of battery |
| CN116613486B (en) * | 2023-07-17 | 2023-11-17 | 宁德时代新能源科技股份有限公司 | Liquid injection safety device, liquid injection method and liquid injection system of battery |
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