According to an embodiment, a winding apparatus includes a winding core and an air flow controller. The winding core winds a belt-shaped structure comprising a substrate and an edge-coating part that covers an edge of a substrate in a width direction, the edge-coating part being coated with a material liquid on a surface of the substrate. The air flow controller has a nozzle that performs at least either ejection or suction of a gas, and adjusts an air flow in the vicinity of the edge-coating part of the film of the belt-shaped structure, which is wound by a winding core.

A disclosed method is a method of manufacturing a battery including a wound electrode assembly in which a first separator, a negative electrode plate, a second separator, and a positive electrode plate are wound together. The method includes steps of winding the first separator, the negative electrode plate, the second separator, and the positive electrode plate onto a winding core, to prepare a wound electrode assembly, and removing the wound electrode assembly from the winding core. The winding core includes a first component and a second component. In the step of removing the wound electrode assembly from the winding core, at least one of the first component and the second component moves in a direction in which a distance between the first component and the second component decrease so that a diameter of the winding core decreases. Thereafter, the wound electrode assembly is removed from the winding core.

A method of manufacturing a battery is disclosed. The method includes the steps of (A) suction-attaching the first separator to a winding core, (B) winding the first separator on the winding core, and (C) removing the wound electrode assembly from the winding core. The winding core includes a first group of holes and a second group of holes each formed in its outer circumferential surface. In step (A), suction is applied to the first separator through at least one of the first group of holes and the second group of holes, to suction-attach the first separator to the winding core. The first group of holes and the second group of holes are configured to be controllable so as to cause suction and gas discharge independently from each other.

A method of manufacturing method a battery includes the following steps. Step (A): causing, with the first separator and the second separator being stacked on each other, the first separator and the second separator to be suction-attached to a winding core and to be pressed against the winding core with a jig including a plurality of protrusions formed on a surface of the jig. Step (B): winding the first separator and the second separator onto the winding core.

A system for replacing a reel of material for the production of electrical energy storage devices and comprising a self-driving vehicle for transporting a reel from a storage or receiving station to a change station is described; at least one support spindle carried by the vehicle and configured to support the reel and to transfer it, at the change station, to a feeding unit of an automatic machine for the production of the storage devices; and a gripping member carried by the vehicle and comprising at least one gripper configured to receive and grip an initial flap of the reel supported by the support spindle and to keep such initial flap tensioned along an unwinding path of the same.

A cell separator fly-cut mechanism includes a first driving component, a second driving component, a lamination component and a fly-cut component, and the lamination component is in transmission connection with the first driving component; and the fly-cut component is in transmission connection with the second driving component, and the fly-cut component is used to move synchronously with the separator and cut off the separator at the same speed as the separator.

Disclosed is an apparatus for manufacturing an electrode assembly, an electrode assembly manufactured therethrough, and a secondary battery. The apparatus for manufacturing the electrode assembly according to the present invention includes a cutting part for cutting an electrode to a predetermined size, a supply part disposed in front of the cutting part with respect to a traveling direction of the electrode to move and supply the electrode to the cutting part, and a moving part disposed behind the cutting part with respect to the traveling direction of the electrode to move the electrode cut through the cutting part, the moving part includes a moving suction belt for vacuum-suctioning and moving the electrode, and the moving suction belt fixes an end of the electrode when the electrode is cut in the cutting part.

A method of preparing an elongate web of sheet material for dividing into discrete stacks of web portions after reeling the web onto a drum is provided. The method includes forming transverse discontinuities in the web at spaced intervals corresponding to edges of the discrete stacks to be formed, the intervals progressively increasing along the web so that the discontinuities form angularly-aligned groups when reeled onto the drum.

The present application relates to a roll replacing device and an adhesive tape sticking equipment. The roll replacing roll device replacing includes an unwinding member, a roll replacing member, a cutting member, and an end pressing member, which can realize automatic roll replacing of a work strip and a spare strip and reduce staffing, thereby reducing labor cost.

A variable-diameter adsorption winding needle mechanism and a winding machine are provided. The variable-diameter adsorption winding needle mechanism includes a winding needle assembly, a first adsorption winding needle, a second adsorption winding needle and a pin assembly. A plurality of adsorption holes are provided on the outer peripheral surfaces of the first adsorption winding needle and the second adsorption winding needle. At the same time, the winding needle assembly is also used to drive, under the driving of the pin assembly, the first adsorption winding needle and the second adsorption winding needle to move close to or away from each other.