Lithium battery winding device
A winding device, lithium battery technology, applied in the direction of secondary batteries, circuits, electrical components, etc., can solve problems such as misalignment, affecting battery performance, and achieve the effect of smooth force and time cost saving
Active Publication Date: 2021-06-25
无锡凯帕德瑞科技有限公司
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Problems solved by technology
[0002] The production process of lithium batteries has been greatly improved as the application of lithium batteries has become more and more extensive. The current battery winding process is to laminate the independent positive electrode sheet, separator, and negative electrode sheet at the same time and then wind them into the battery. On the battery cell, since the positive electrode sheet, separator, and negative electrode sheet are independent of each other, misalignment is prone to occur during the winding process, which affects the performance of the battery. Therefore, a method that can improve the bonding force between each film roll is needed. The winding device
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[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments, so that those skilled in the art can implement it with reference to the description.
[0024] Such as Figure 1~4 As shown, the lithium battery winding device includes:
[0025] The unwinding mechanism 100 comprises a positive electrode roll 110 rolled with a positive plate, a separator roll 120 rolled with a separator film, a negative electrode roll 130 rolled with a negative plate, a protective film roll 140 rolled with a protective film, and four guides. Shaft 150, positive electrode sheet roll 110, separator roll 120, negative electrode sheet roll 130, and protective film roll 140 are arranged in sequence from top to bottom and are all axially penetrated, positive electrode sheet roll 110, separator roll 120, negative electrode sheet roll 130, protection The film rolls 140 are respectively unwound in the counterclockwise direction, and the ...
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Abstract
The invention discloses a lithium battery winding device, which comprises an unwinding mechanism, a roll cover, a laminating mechanism and a winding mechanism, and the positive electrode sheet roll, the separator roll, the negative electrode sheet roll, and the protective film roll are respectively arranged in the unwinding mechanism Inside the four roll sleeves and unwind at the same time, the gaps of the bonding mechanism are used to wind the positive electrode sheet, separator, negative electrode sheet, and protective film at the same time, and finally the laminated tape is wound by the winding mechanism. The preheating of the film roll by the roll cover in the present invention is beneficial to the full contact between each film roll in the bonding process, and the bonding mechanism in the present invention has ductility, which can make the bonding process smoother and effectively prevent winding The film roll breaks during the process.
Description
technical field [0001] The invention relates to the field of battery winding devices, in particular to lithium battery winding devices. Background technique [0002] The production process of lithium batteries has been greatly improved as the application of lithium batteries has become more and more extensive. The current battery winding process is to laminate the independent positive electrode sheet, separator, and negative electrode sheet at the same time and then wind them into the battery. On the battery cell, since the positive electrode sheet, separator, and negative electrode sheet are independent of each other, misalignment is prone to occur during the winding process, which affects the performance of the battery. Therefore, a method that can improve the bonding force between each film roll is needed. winding device. Contents of the invention [0003] It is an object of the present invention to solve at least the above-mentioned problems and to provide at least th...
Claims
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IPC IPC(8): H01M10/0587H01M10/615
CPCY02E60/10Y02P70/50
Inventor 倪杰尹章发姜生
Owner 无锡凯帕德瑞科技有限公司