A transfer device for a unit cell, which transfers a unit cell, in which electrodes and separators are stacked by a predetermined number, includes: a conveyor configured to travel in one direction and transfer the seated unit cell when the unit cell is seated; a first rail disposed at one side of the conveyor in parallel to the conveyor; and a second rail disposed at the other side of the conveyor in parallel to the conveyor, wherein a protrusion protrudes from a surface of each of the first rail and the second rail along the traveling direction of the unit cell, and the unit cell is supported by the protrusion and transferred while being transferred through the conveyor.

A device for manufacturing an electrode assembly for removing foreign particles through air is provided. The device includes a winding portion; an electrode transfer line; an air blower installed on a top portion of the device and blowing air to a bottom portion of the device; and an outlet for discharging air moved to the bottom portion by the air blower.

The present application provides an electrode assembly and a processing method and device therefor, a battery cell, a battery and a power consuming device. The electrode assembly comprises: a cathode plate, an anode plate and a separator. The cathode plate is bent M times to form M bent parts in a bent region, a first attachment region is formed on an inner surface of an Nth-bend part of the cathode plate, and a second attachment region is formed on an outer surface of the Nth-bend part; at least one part of an ion blocking layer is attached to the first attachment region, and the ion blocking layer is used for preventing ions deintercalated from the first attachment region from being intercalated into the anode plate adjacent to the first attachment region during charging; and at least one part of a reinforcing layer is attached to the second attachment region.

First data indicating a position of a first end surface of a first sheet material and second data indicating a position of a second end surface of a second sheet material are acquired from an inspection machine, and information indicating that a winding body has a defect and a cause of the defect is any of a plurality of winding cores is output to a display for maintenance in a case where continuous positions of the first end surface indicated by the first data and continuous positions of the second end surface indicated by the second data are tilted with respect to reference lines.

Instant invention comprises an electrode configured with laser-sintered coating materials, said electrode further comprised of at least one hundred extensions. Said electrode comprises a jelly roll of battery materials wherein an end plate in wound jelly roll comprises said at least one hundred extensions in shingle-style overlaps to extensions of same electrode. A battery comprised of said jelly roll of battery materials comprises improved capacity due to laser sintering, and further comprises improved useful life by large area of electrical connections to external circuit enabled by said electrode extensions configured in end plate as shingle-style overlaps. In a preferred embodiment, laser-sintered materials comprise in anode, selection from a group consisting of Li, C, Si, Mg, Cu, Ni, Al, Ti, Sn and the arbitrary combinations thereof; and in cathode, selection from a group consisting of lithium-cobalt-based composites, LiFePO.sub.4-based composites, lithium LiMnPO.sub.4-based composites, lithium-manganese-based composites, lithium-nickel-based composites, lithium-cobalt-nickel-manganese-based composites, and the arbitrary combinations thereof.

A battery manufacturing device for manufacturing a cylindrical battery by folding a positive electrode tab connected to a top cap includes a jig that makes a pendulum swing and presses a positive electrode tab; an adjusting member that forms a turning radius of the pendulum swing; and a folding knife that presses a folding part of the positive electrode tab. A method of using the battery manufacturing device is also provided.

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 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.

The present application discloses a winding needle sleeve, a battery unit, a battery, a power-consuming device and a winding device. A wall of the winding needle sleeve is provided with a through slot extending through the wall. The through slot extends from one end to the other end of the winding needle sleeve, so as to allow expansion or contraction of the winding needle sleeve in a radial direction. The technical solution provided by the present application can solve the problem in the prior art that an electrode assembly collapses due to expansion and contraction thereof, resulting in wrinkling of a surface of the electrode assembly and the phenomenon of lithium deposition, thus causing potential safety hazards.

The present disclosure provides for advantageous electrolyte filling systems/methods utilizing predetermined pressure/flow cycles. The disclosed electrolyte filling system enables filling of at least one jelly roll assembly under vacuum. The disclosed electrolyte filling system is capable of simultaneously filling at least two multi-core lithium ion batteries. The disclosed multi-core lithium ion batteries include a plurality of jelly roll assemblies positioned within cavities, which are further positioned within a sealed enclosure. The disclosed jelly roll assemblies are electrically connected to at least one bus bar. The disclosed bus bars include at least one flexible connective structure to electrically connect to a sealed enclosure.