Roller-Press Apparatus
a technology of roller presses and rollers, which is applied in the direction of cell components, sustainable manufacturing/processing, and final product manufacturing, etc., can solve the problems of electrode plate foil wrinkles at the longitudinal edge, and the wrinkles of the electrode pla
Inactive Publication Date: 2015-12-17
NINGDE AMPEREX TECH
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Benefits of technology
The goal of this patent is to create a roller-press apparatus that stops the electrode plate foil from wringling during the rolling process.
Problems solved by technology
However, after the electrode plate which is coated is rolled, there is usually a problem that a foil of the electrode plate wrinkles at a longitudinal edge between each coated area and an adjacent blank foil area.
However, at present, for double roller-structure cold pressing technology adopted with respect to the striped electrode plate, there is also a problem that the foil of the electrode plate wrinkles at the longitudinal edge between the each coated area and the adjacent blank foil area.
Method used
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[0016]Hereinafter a roller-press apparatus according to the present disclosure will be described in detail in combination with the Figures.
[0017]Referring to FIGS. 1-7, a roller-press apparatus according to the present disclosure comprises: an unwinding mechanism 1 around which an electrode plate 9 to be rolled is wound, and the unwinding mechanism 1 unwinds the electrode plate 9 to be rolled, the electrode plate 9 to be rolled has a foil 91 and a coating layer 92 provided on at least a surface of the foil 91, the foil 91 has at least a coated area 911 extending along a longitudinal direction of the foil 91 and a blank foil area positioned at a side direction of the coated area 911 on the corresponding surface provided with the coating layer 92, the foil 91 is provided with the coating layer 92 at the coated area 911 and is not provided with the coating layer 92 at the blank foil area; a rolling mechanism 2 comprising a press roller 21 and a back roller 22 which are oppositely provi...
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Abstract
The present disclosure provides a roller-press apparatus, which comprises: an unwinding mechanism around which an electrode plate to be rolled is wound, the electrode plate has a foil and a coating layer, the foil has at least a coated area and a blank foil area, the foil is provided with the coating layer at the coated area and is not provided with the coating layer at the blank foil area; a rolling mechanism; and a stretching mechanism. The stretching mechanism comprises: two guide rollers; and an uneven roller positioned between the two guide rollers, and forming a wrap angle with the two guide rollers, the uneven roller matches the electrode plate in size to allow a protruding portion of the uneven roller to act on the foil at the blank foil area, so as to allow the foil at the blank foil area to be plastically deformed.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS[0001]The present application claims priority to Chinese patent application No. 201410259321.3 filed on Jun. 12, 2014, which is incorporated herein by reference in its entirety.TECHNICAL FIELD OF THE PRESENT DISCLOSURE[0002]The present disclosure relates to a field of production equipment of a lithium-ion battery, and particularly relates to a roller-press apparatus.BACKGROUND OF THE PRESENT DISCLOSURE[0003]A process for preparing an electrode plate of a lithium-ion battery generally includes steps of slurrying, coating, drying, rolling, cutting, and the like, although different manufacturers or different battery manufacturing processes may be varied, the step of rolling in the process for preparing the electrode plate is an essential process. The electrode plate achieves a certain compacted density after rolling, which is very important to the improvement of the capacity density of the lithium-ion battery. However, after the electrode plate wh...
Claims
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Login to View More IPC IPC(8): B21B1/40
CPCB21B1/40B21B2001/383B21D1/05H01M4/0435H01M4/139Y02E60/10Y02P70/50
Inventor ZHOU, ZHONGXINQIU, JIANFUSHAO, ZILONGGUO, BINBINHE, PINGLI, CONGXIONG, JIANQUN
Owner NINGDE AMPEREX TECH