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.

In the stacking process to stack negative electrode plates and positive electrode plates alternately with a bellows-shaped separator therebetween, a control unit performs tension control to change control condition to determine operations of a conveyance adjustment unit so that tension of the separator is within a certain range.

Battery cell module for electrically operated vehicles, which has a plurality of elongated, in particular cylindrical, battery cells whose longitudinal axes are aligned parallel to one another, the battery cells being arranged in such a way that a first row of battery cells runs parallel to a second row of battery cells, so that in each case two battery cells are arranged opposite one another in pairs, the respectively opposite battery cells being electrically and mechanically rigidly connected to one another by means of at least one contact sheet in each case. In each case adjacent contact sheets are rigidly connected to one another electrically and mechanically by means of at least one contact sheet connector in each case.

According to the present disclosure, the breakage of an exterior body due to rising deformation of an electrode terminal can be prevented. The manufacturing method herein disclosed includes the steps of: bringing a lower surface of a terminal connecting part into contact with a first terminal, and bringing an upper surface of the terminal connecting part into contact with a second terminal; interposing the terminal connecting part, the first terminal, and the second terminal between a horn and an anvil, and carrying out ultrasonic welding; and accommodating the electrode body into the exterior body. Such a manufacturing method is characterized in that a width dimension of the horn is longer than a width dimension of the second terminal, and a width dimension of the anvil is longer than the width dimension of the second terminal. This can prevent rising deformation of the electrode terminal, and can prevent breakage of the exterior body by the deformed electrode terminal.

A roll map of an electrode coating process includes a roll map bar and a representation part. The roll map bar is displayed on a screen in synchronization with movement of an electrode between an unwinder and a rewinder while being coated with an electrode slurry in a roll-to-roll state. The roll map bar is displayed in the form of a bar by simulating the electrode in the roll-to-roll state. The representation part is configured to visually show either one of or both quality-related and defect-related acquired data associated with the electrode coating process. The acquired data is shown at a certain location on the roll map bar corresponding to a location in the electrode at which the data is measured. A roll map of an electrode coating process is generated by a process. A roll map of an electrode coating process is generated by a system.

A battery includes a wound electrode assembly. The wound electrode assembly has a flat shape. The wound electrode assembly includes a first separator, a positive electrode plate, a second separator, and a negative electrode plate. The first separator, the positive electrode plate, the second separator, and the negative electrode plate are stacked in this order and then wound spirally. In a cross section perpendicular to a winding axis of the wound electrode assembly, the first separator has a first winding start edge inside an innermost circumference of the wound electrode assembly; the second separator has a second winding start edge inside the innermost circumference of the wound electrode assembly; the first winding start edge faces the second winding start edge with the winding axis interposed therebetween; and the first winding start edge is located apart from the second winding start edge.

A cylindrical battery cell, a battery, an electricity consuming device, a manufacturing method and a manufacturing system are provided. The cylindrical battery cell includes a shell, including an opening; and an electrode assembly, disposed in the shell, the electrode assembly including a separator and a tab, and along an axial direction of the electrode assembly, the tab being located at one end of the electrode assembly and extending toward the opening, the tab including a first portion and a second portion, the second portion surrounding a periphery of the first portion, and the separator wrapping the second portion to isolate the second portion from the shell, wherein along the axial direction, the first portion extends beyond the second portion and the separator, and the second portion does not extend beyond the separator. The battery cell of the present application solves a problem of short circuit in the battery cell.

An electrode packing device includes: a transferring unit that transfers a wound electrode; and a packaging unit for packaging the electrode transferred by the transferring unit, wherein the packaging unit includes: a packaging bag supporting part for supporting the inlet of the packaging bag in an opened state; an electrode supporting part that supports the electrode from the outside the packaging bag, after the electrode is put into the packaging bag; and a sealing part that seals the inlet of the packaging bag, and the electrode supporting part includes a gripper that presses the core of the electrode and a side pad that presses the side of the electrode in a state in which the electrode is put in the packaging bag.

Provided are a battery winding method, a battery winding system, a battery and an electrical device. The battery winding method includes: winding; photographing a picture of a current winding layer; acquiring position data of a first point and of a second point according to the picture of the current winding layer, converting the position data of the first point to obtain the converted position data of a converted first point using a preset conversion matrix corresponding to the current winding layer based on the number of the current winding layers and calculating data of displacement between the first and second electrode plates based on the converted position data of the converted first point and the position data of the second point, and determining if the data of displacement is within a threshold value scope, if so, returning to wind a next winding layer, and if not, sending an alarm.

The electrode drying device for drying moisture in electrodes includes a chamber section; a stacking section in which at least one electrode is configured to be arranged separately from each other; a first heater unit located adjacent to the stacking section; and a circulation unit for circulating heat inside the chamber section.