Lg Chem, Ltd

Su Taek Jung

Ki Hong Min

Jihoon Cho

Changmin Han

Byeong Geun Kim

Sang Hyuck Park

Ki Hun Song

Han Sung Lee

Sung Min Hwang

Jeong Sam Son

Hyun-sook Baik

Jae Hoon You

Taeyoon Jung

Sung Hyun Kim

Hyeong Jin Kim

Seok Joo Jung

Sung-Min Hwang

Seok Jin Kim

Byung Taek Yang

JeongSam Son

TaeYoon Jung

Hyun Suk Baik

Tae-Yoon Jung

Hyeong Joon Kim

Hyun-Sook Baik

Jeongsam Son

Disclosed is a device for notching, at an interval of a unit electrode, a continuous electrode sheet in which an electrode active material is applied to one or both surfaces thereof, to form a plurality of unit electrodes from the electrode sheet, the device including a press to press notches on the top and the bottom of the electrode sheet at a set position, and two or more grippers arranged at the rear of the press based on a feed direction of the electrode sheet, the grippers drawing and transporting the electrode sheet by one pitch, a size corresponding to the unit electrode according to operation of the press, wherein while one of the grippers draws and transports the electrode sheet, the remaining grippers move to a position for drawing.

Device for notching a secondary battery manufactured using the same

Disclosed herein is a folding device to manufacture a stacked/folded type electrode assembly having unit cells sequentially stacked in a state in which a separation film is disposed between the respective unit cells, the folding device including a web supply unit to supply a web having plate-shaped unit cells arranged at a top of a separation film at predetermined intervals, a winding jig to rotate the unit cells while holding a first one of the unit cells of the web so that the unit cells are sequentially stacked in a state in which the separation film is disposed between the respective unit cells, and a rotary shaft compensation unit to compensate for the position of a rotary shaft of the winding jig in an advancing direction of the web (X-axis direction).

Device for folding electrode assembly

Disclosed is a device for cutting an electrode sheet laminate wherein two or more continuous electrode sheets, in which an electrode active material is applied to one or both surfaces thereof, are laminated, to form a plurality of unit electrode laminates from the electrode sheet laminate, the device including a cutter to cut the electrode sheet laminate at a set position and thereby form unit electrode laminates, and two or more transport grippers arranged at the front of the cutter based on a feed direction of the electrode sheet laminate, the transport grippers drawing and transporting the electrode sheet laminate by one pitch, a size corresponding to the unit electrode laminate according to operation of the cutter, wherein while one of the transport grippers draws and transports the electrode sheet laminate, the remaining transport grippers move to a position for drawing.

Device for cutting electrode sheet and secondary battery manufactured using the same

Disclosed herein is a battery cell manufacturing device configured to manufacture a battery cell including two or more unit cells. The battery cell manufacturing device includes a unit cell stacking unit into which unit cells are introduced from above and in which the unit cells are sequentially stacked, a wrapping unit to wrap an outside of the unit cell stack discharged from the unit cell stacking unit with a separation film, and a heating unit to thermally shrink the separation film wrapping the outside of the unit cell stack.

Manufacture device of battery cell

Disclosed is a method for manufacturing a battery cell including an electrode assembly and electrolyte provided in a battery case composed of a laminate sheet having a resin layer and a metal layer, which includes; (a) thermally fusing and sealing the periphery of the case except for an end part thereof while the electrode assembly is mounted in the case; (b) introducing the electrolyte through the unsealed end part then sealing the same by thermal fusion; (c) charging and discharging the battery cell to activate the same; (d) puncturing the unsealed part inside the end part to form a through-hole communicating with the inside of the case; and (e) pulling top and bottom faces of the battery case in the opposite direction to each other at the unsealed part to open the same while applying vacuum pressure, to thereby remove the gas generated during activation as well as excess electrolyte.

Method for manufacturing battery cell and battery cell manufactured using the same

Disclosed is a unit cell transfer apparatus for arranging and delivering unit cells to a folding device, which is used in a continuous process for manufacturing a stack/folding type electrode assembly having a structure of planar unit cells wound up over a separate film.

Growing community of inventors

Cheongju-si, South Korea

Su Taek Jung