An apparatus for manufacturing an electrode plate, includes an unwinder on which an electrode reel is installed; a meandering corrector correcting meandering of an electrode sheet unwound from the electrode reel; a press puncher disposed at a rear end of the meandering corrector; a cutter disposed at a rear end of the press puncher; a detector disposed between the press puncher and the cutter to acquire an image of the electrode sheet; and a controller connected to the detector and the meandering corrector.

This application relates to a winding and unwinding apparatus and a preparation system of electrode plate. The apparatus includes supports, a rotating shaft, a rotating turret, and a power assembly. The rotating shaft is rotatably disposed on the support. The rotating turret is disposed on the rotating shaft and capable of rotating along with the rotating shaft so as to switch between at least two target operation positions. The power assembly includes a first power source and a magnetic powder clutch. The rotating shaft and the first power source are in transmission connection with each other via the magnetic powder clutch. The magnetic powder clutch is configured to control the rotating shaft to remain stationary when the rotating turret is hovering at each target operation position.

A zigzag stacking device includes a stack table, swing roll, oppositely disposed positive and negative electrode unwinders, sealer, and controller. Positive and negative electrode plates and a separator are stacked on the stack table. The swing roll supplies the separator in a zigzag shape to the stack table by horizontal movement. The positive electrode unwinder supplies the positive electrode plate to a folded section of the separator folded in a zigzag shape. The negative electrode unwinder alternately supplies the negative electrode plate to a folded section adjacent to the folded section of the separator to which the positive electrode plate is supplied. The sealer presses and seals the separator when the separator is on the stack table. The controller controls operations of the stack table and sealer to seal the separator whenever the separator is stacked on the positive electrode plate and over the stack table.

A sheet material conveyance device includes a plurality of first holding heads each having a curved first holding surface, a first drum holding the plurality of first holding heads, a plurality of second holding heads each having a planar second holding surface, a second drum holding the plurality of second holding heads, a tilt adjustment mechanism structured to adjust a tilt of each second holding surface, and a speed adjustment mechanism structured to adjust a relative movement speed of the first holding head and the second holding head. The first holding head and the second holding head move to a delivery position, and deliver the sheet material between the first holding surface and the second holding surface in a situation in which adjustment is performed by the tilt adjustment mechanism and the speed adjustment mechanism.

A transfer apparatus for a material for an electrode according to an embodiment of the disclosed technology includes an apparatus body; a gripping device configured to grip a reel wound around a current collector; a first moving device connected to the gripping device and the apparatus body and configured to move the gripping device; a position changing device configured to rotate the reel when the reel is seated; and a first discharge device disposed on one side of the apparatus body and configured to discharge the reel to the outside of the apparatus body when the rotated reel is seated.

An apparatus of supplying a fuel cell stack material is provided. The apparatus includes a moving part in which a plurality of gas diffusion layers (GDLs) diffusing a gas fuel and supporting a catalyst layer are stacked and a cartridge having the moving part movably disposed therein. An adsorption pad is disposed above the cartridge to adsorb the plurality of gas diffusion layers and a nozzle part is configured to spray air above the plurality of gas diffusion layers to generate a lift on the plurality of gas diffusion layers.

A winding apparatus is disclosed for winding material around a core of flat shape rotated around a rotation axis carried by a crank that is in turn carried by another crank, the three rotation axes of the core and of the two cranks being motorized independently by respective electric cams, with three distinct laws of motion programmed to cancel the variations in position and speed of the material entering the core. The winding apparatus is used for the production of electric energy storage devices.

A method for manufacturing a battery is provided. The method includes suctioning a part of a strip-shaped separator in a plurality of holes of a winding core in a peripheral surface of the winding core; preparing a wound body by winding strip-shaped positive and negative electrodes along with the strip-shaped separator around the winding core; and preparing an electrode body by releasing the suction in the holes and pulling out the winding core from the wound body, in which the battery includes a battery container configured to accommodate the electrode body, the holes are communicated inside with the winging core having a hollow structure, and the winding core has an outside diameter of 2 mm or less.

An electrode sheet drying equipment, an electrode sheet manufacturing system including the same, and an electrode sheet drying method including an air-floating roller disposed downstream of a drying oven, and the air-floating roller is configured to spray hot air through multiple air spraying holes formed on the outer circumferential surface. Accordingly, the electrode sheet discharged from the drying oven in a partially undried state can be additionally dried, thereby preventing contamination of a transfer roller and/or equipment of the subsequent process.

Disclosed are embodiments of battery stacker machines, including z-fold stacker machines, configured to provide a rolling transfer of a battery layer so as to reduce scrubbing. In some embodiments, the layer is flexed onto an arcuate surface using a vacuum or other force. The arcuate surface is then rotated to release the layer at a desired transfer location. For instance, the desired transfer location may be on top of a stack or onto another arcuate gripper surface.