Stacking device and stacking method

Abstract

Separation between the membrane sheet and the stent for delivery thereof is easier than in the prior art. A center stay plate has a center holding surface as a lower surface, the center holding surface holding a longitudinal center portion of an upper surface of the diaphragm. The peripheral edge support plate has a peripheral edge holding surface as a lower surface, the peripheral edge holding surface holding both end portions in the longitudinal direction of the upper surface of the diaphragm. The central pressure cylinder makes the central support plate capable of being lifted, and the peripheral pressure cylinder makes the peripheral support plate capable of being lifted. When the diaphragm transport holder carries the diaphragm sheet on the stacking table, the holder control unit causes the peripheral cylinder to output a lowering thrust and the central cylinder to output a raising thrust after the diaphragm sheet being transported comes into contact with the uppermost surface ofthe stacked body on the stacking table, thereby separating the central holder plate from the diaphragm sheet individually.

Description

technical field [0001] The present invention relates to a stacking device and a stacking method of a battery stack. Background technique [0002] As an electrode structure of a lithium ion secondary battery or the like, a laminated structure in which a separator sheet is sandwiched between a sheet-shaped positive electrode (positive electrode sheet) and a negative electrode (negative electrode sheet) and stacked in multiple layers is known. When manufacturing batteries with such a stacked structure, various manufacturing methods such as zigzag type, roll type, pouch type, and sheet stacking type are currently known. [0003] The former three have the advantage that the positive electrode sheet or negative electrode sheet placed between them is less prone to misalignment because the upper and lower separators are connected, but they have the disadvantage that it is difficult to cope with dimensional changes (enlargement or miniaturization) of the laminate. [0004] In additi...

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Problems solved by technology

[0003] The former three have the advantage that the positive or negative electrode sheets placed between them are less likely to be shifted because the upper and lower separators are connected, but there is a disadvantage that it is difficult to cope with dimensional changes (upsizing or miniaturization) of the laminated body.

[0004] In addition, in the sheet stacking method, each sheet is stacked in the order of negative electrode sheet, separator, positive electrode sheet, separator, negative electrode sheet ... negative electrode sheet, but there is a disadvantage that each sheet is easily shifted in the plane direction.

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