Flattening wheel, mechanical flattening head, battery cell flattening device and flattening method thereof
A technology of flat wheel and electric core, which is applied in the field of mechanical flattening head, electric cell flattening device and its kneading and flattening wheel, which can solve the problem of flattening electric cores of different specifications and material valgus at the end of electric cores , Good mechanical kneading effect and other issues, to achieve the effect of ensuring mechanical kneading effect, ensuring smoothness, and preventing material from eversion
Pending Publication Date: 2021-01-15
WUHAN YIFI LASER EQUIP CO LTD
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Problems solved by technology
[0005] One of the purposes of the embodiments of the present invention is to provide a flattening wheel and its mechanical flattening head, which is used to solve the current problem that the material at the end of the battery cell is easily turned over during the mechanical flattening process of the battery cell
[0006] The second purpose of the embodiment of the present invention is to provide a cell flattening device and a flattening method based on the above-mentioned mechanical flattening head, so as to solve the problem that it is currently difficult to flatten cells of different specifications and cannot achieve better results. The problem of mechanical kneading effect
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[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0031] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be directly connected, or...
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The embodiment of the invention provides a flattening wheel, a mechanical flattening head, a battery cell flattening device and a flattening method thereof. The flattening wheel comprises an extrusionpart and a flattening part,wherein the extrusion part is provided with an extrusion surface used for being attached to the edge of the end part of a battery cell; and the flattening part is conical,a large head end of the flattening part is connected with an extrusion surface of the extrusion part, an annular external corner structure is formed between the side surface of the flattening part andthe extrusion surface, and the side surface of the flattening part is used for being in contact with the end part of the battery cell. Based on the improvement of the flattening wheel, an internal corner structure corresponding to the external corner structure can be formed at the edge of the end part of the battery cell, the flatness and compactness of the end part of the battery cell are ensured, meanwhile, the end part of the battery cell is effectively prevented from being turned outwards, and the battery cells with different specifications can be flattened so that a relatively good mechanical flattening effect is achieved.
Description
technical field [0001] The invention relates to the technical field of battery processing, in particular to a flattening wheel, a mechanical flattening head, a cell flattening device and a flattening method thereof. Background technique [0002] The battery cell is the most important component of the battery. The battery cell can only be assembled into a battery after being processed by mechanical / ultrasonic flattening, encapsulation, shelling, and collector plate welding. Therefore, the performance of the cell has a direct impact on the performance of the battery, and the cell preparation process before battery assembly is very important. [0003] There are many cell structures of the battery, one of which is a cylindrical cell composed of several diaphragms and aluminum films wrapped alternately. When the battery cell is not flattened, the end of the battery cell is not flat, there may be flanging and more burrs, and there is still a certain degree of concentricity relati...
Claims
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IPC IPC(8): H01M10/04H01M6/00
CPCH01M10/04H01M6/005Y02P70/50Y02E60/10
Inventor吴轩冉昌林程从贵
OwnerWUHAN YIFI LASER EQUIP CO LTD