Liquid injection method for electric core and liquid injection device for lithium battery
A liquid injection and liquid injection technology for lithium batteries, which is applied in the manufacture of electrolyte batteries, non-aqueous electrolyte batteries, battery pack components, etc. Liquid time, improve production efficiency, effect of large coverage area
Active Publication Date: 2022-05-13
SHENZHEN LIDE TECH
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Problems solved by technology
In the production process of the lithium battery in the related art, the electrolyte needs to be injected through the liquid injection hole opened thereon. Since the position of the liquid injection hole is fixed, the distribution of the liquid entering the chamber from the liquid injection hole is not uniform, and the coverage area is not uniform. Small, resulting in slower absorption (about 20-30 minutes to complete the injection)
In addition, since the cover plate has been welded on the cup where the battery is placed before the liquid injection, the air pressure in the cavity will gradually increase during the liquid injection process, which in turn hinders the absorption speed of the liquid
This is less productive
Method used
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[0030] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.
[0031] Please combine Figure 1 to Figure 4 , the battery cell injection method in the embodiment of the present invention can be used in the lithium battery injection device 100 . The lithium battery liquid injection device 100 includes a liquid injection structure 10 and a casing 20 . The liquid injection structure 10 includes a liquid injection head 12 . The housing 20 has a receiving slot 21 . An electric core (not shown in the figure) is disposed in the accommodation groove 21 . The casing 20 is provided with a liquid injection port 22 communicating with the accommodating tank 21 . The liquid injection port 22 is disposed around the liquid inje...
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The invention relates to a battery cell liquid injection method and a lithium battery liquid injection device. The battery cell liquid injection method is used in the lithium battery liquid injection device. The lithium battery liquid injection device includes a liquid injection structure and a casing, and the liquid injection structure includes a liquid injection device. The liquid head, the housing has a storage tank, the battery cell is arranged in the storage tank, the liquid injection port connected to the storage tank is provided on the housing, the liquid injection port is arranged around the liquid injection head, and the liquid injection method includes the following steps: The liquid injection head moves above the liquid injection port; the liquid injection head is controlled to move above the liquid injection port along a preset first path, and at the same time, the liquid is controlled to be output from the liquid injection head to be injected into the accommodating tank through the liquid injection port. In the liquid injection method of the present invention, when the liquid injection head is used for liquid injection, since the liquid injection head can be controlled to move above the liquid injection port along the preset first path, the liquid (electrolytic solution) entering the housing can be Liquid) is more evenly distributed and covers a large area, which in turn can increase the speed at which the cell absorbs liquid, shortens the liquid injection time, and improves production efficiency.
Description
technical field [0001] The invention relates to the technical field of lithium battery liquid injection, in particular to a battery cell liquid injection method and a lithium battery liquid injection device. Background technique [0002] With the development of modern society, the application of lithium batteries is becoming more and more extensive. In the production process of the lithium battery in the related art, the electrolyte needs to be injected through the liquid injection hole opened thereon. Since the position of the liquid injection hole is fixed, the distribution of the liquid entering the chamber from the liquid injection hole is not uniform, and the coverage area is not uniform. Small, resulting in slow absorption (about 20-30min to complete the injection). In addition, since the cover plate has been welded to the cup where the battery is placed before the liquid injection, the air pressure in the cavity will gradually increase during the liquid injection pro...
Claims
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IPC IPC(8): H01M50/609H01M50/627H01M10/058
CPCH01M10/058Y02E60/10Y02P70/50
Inventor 鲁树立肖安勤郭彬鹏欧阳昌豪
Owner SHENZHEN LIDE TECH