An electrode assembly is manufactured in which unit cells are wound with a separation film. Unit cells are mounted on an upper surface of the separation film to prepare an array body. One end of each of the unit cells where tabs of the unit cells are formed, another end of each of the unit cells, which are in the upper and lower portions of a direction parallel to a longitudinal direction of the separation film and parallel to a winding direction of the array body, and the separation film positioned at a corresponding location thereof. The heat-treated unit cells are wound with the separation film. An apparatus manufactures the electrode assembly.

The invention relates to an electrochemical element and a battery comprising one or more electrochemical elements, with integrated sensors and/or actuators, in particular including an application for monitoring the operation of an electrochemical element or a Li-ion battery, and/or triggering actions in such an element or such a battery, intended to secure the element or the battery. The electrochemical element (1) comprises a closed shell (2) defining an internal volume and a beam (3) arranged therein having alternating positive and negative electrodes respectively connected to two positive and negative electrical output terminals housing separators, the beam (3) being impregnated with electrolyte and further connected by connection means (4) to one (5) of the electrical output terminals. It further comprises one or mote self-powered sensor and/or actuator elements (20 to 24) each arranged in contact with one component selected from the shell (2), the beam (3), the connection means (4), and the output terminal (5), and capable of measuring a physical or chemical magnitude relative to, and/or generating a physical action or effect on, the surroundings thereof.

The present invention relates to an apparatus for manufacturing an electrode assembly including a separator feeding unit including a first roll on which one side of a separator strip is wound and a second roll on which the other side of the separator strip is wound, wherein the first and second rolls respectively unwind the separator strip so that the separator strip is fed toward a core portion of the separator strip disposed between the first and second rolls; a separator folding unit for winding the separator strip around the core portion to form a separator spiral folded in a spiral shape about the core portion; a first electrode lamination unit for laminating first electrode members on one surface of the separator spiral; and a second electrode lamination unit for laminating second electrode members on the other surface of the separator spiral.

The present invention relates to an apparatus for manufacturing an electrode assembly including a separator feeding unit including a first roll on which one side of a separator strip is wound and a second roll on which the other side of the separator strip is wound, wherein the first and second rolls respectively unwind the separator strip so that the separator strip is fed toward a core portion of the separator strip disposed between the first and second rolls; a separator folding unit for winding the separator strip around the core portion to form a separator spiral folded in a spiral shape about the core portion; a first electrode lamination unit for laminating first electrode members on one surface of the separator spiral; and a second electrode lamination unit for laminating second electrode members on the other surface of the separator spiral.

An apparatus for manufacturing electrical energy storage devices, comprising a path for feeding material with intermittent feed and two machining stations arranged one after the other in the feed path, in which each machining station is movable on a linear guide at the command of a motor to vary its position along the feed path and enable the mutual distance between the two machining stations to be adjusted in function of the step of intermittent feed of the material, so that the apparatus is adaptable to the change in product size.

A short stress path-type electrode sheet rolling machine and an integrated machine equipment for manufacturing lithium battery electrode sheets, whereby the rolling machine comprises: an upper roller mechanism, a lower roller mechanism, an upper bearing base, a lower bearing base and a roller-gap adjusting mechanism; the upper roller mechanism is connected to the upper bearing base, and the lower roller mechanism is connected to the lower bearing base; the upper bearing base and the lower bearing base are connected by means of a guide shaft; the roller-gap adjusting mechanism is connected to the upper roller mechanism so as to adjust a roller gap between the upper roller mechanism and the lower roller mechanism. The rolling machine has a simpler and more reliable structure, has a shorter stress return path when performing electrode sheet rolling, and may improve rolling precision and rolling quality.

The present invention relates to an apparatus for manufacturing an electrode assembly including a separator feeding unit including a first roll on which one side of a separator strip is wound and a second roll on which the other side of the separator strip is wound, wherein the first and second rolls respectively unwind the separator strip so that the separator strip is fed toward a core portion of the separator strip disposed between the first and second rolls; a separator folding unit for winding the separator strip around the core portion to form a separator spiral folded in a spiral shape about the core portion; a first electrode lamination unit for laminating first electrode members on one surface of the separator spiral; and a second electrode lamination unit for laminating second electrode members on the other surface of the separator spiral.

Provided is a device for manufacturing an electrode assembly including: a lower air blowing unit for spraying air onto an end part of a separator sheet so that the end part of the cut separator sheet can be bent in an upward direction from the ground during a first winding; and an upper air blowing unit for spraying air onto the end part of the separator sheet so that the end part of the separator sheet can be bent in a downward direction toward the ground of a first unit cell while the first unit cell is firstly wound, thereby preventing a hyphen-shaped fold of the separator sheet during a manufacturing process of an electrode assembly and minimizing defects due to low voltage issues caused by contact between electrodes.

An electrode core encasing apparatus includes a main power mechanism, a housing fixing mechanism, an encasing mechanism, and an electrode core fixing mechanism. The housing fixing mechanism is disposed on one side of the encasing mechanism, which is located between the housing fixing mechanism and the electrode core fixing mechanism. The encasing mechanism includes an encasing mechanism body and an XY floating slide block. Two ends of the XY floating slide block are connected to the main power mechanism and the encasing mechanism body, respectively. The XY floating slide block is configured to drive the encasing mechanism body to slide freely relative to the main power mechanism, so as to adjust a relative position between the housing and the electrode core. The main power mechanism is configured to drive the housing fixing mechanism and the encasing mechanism to move to sleeve the electrode core into the housing.

Disclosed are a winding apparatus and a winding method, the winding apparatus includes: a winding needle, being configured to wind a winding material; a power supply assembly, being configured to be electrically coupled to the winding needle, so as to form current on an axis of the winding needle; and a magnet supply assembly, being configured to provide a magnetic field to the winding needle, a magnetic field direction intersecting the axis of the winding needle so that the winding needle generates an ampere force for resisting a deformation of the winding needle in the magnetic field when the winding material is wound. By the above method, the present application may reduce the deformation of the winding needle, reduce a defective rate of a winding product formed by the winding of the winding material, and improve quality of the winding product.