Lg Chem, Ltd

Seok Joo Jung

Sung Min Hwang

Ki Hong Min

Jihoon Cho

Byeong Geun Kim

Changmin Han

Sang Hyuck Park

Ki Hun Song

Han Sung Lee

Hyun-sook Baik

Jeong Sam Son

Byung Taek Yang

Su Taek Jung

Jae Hoon You

Sung Hyun Kim

Hyeong Jin Kim

Taeyoon Jung

Hyeong Joon Kim

TaeYoon Jung

Hyun-Sook Baik

Disclosed is a method for manufacturing a battery cell including an electrode assembly and electrolyte provided in a battery case made of a laminate sheet having a resin layer and a metal layer, which includes: (a) mounting the electrode assembly in the battery case and sealing the periphery of the battery case except for one end part thereof through thermal fusion; (b) introducing the electrolyte through the unsealed end part and sealing the end via thermal fusion; (c) charging-discharging the battery cell to activate the same; (d) transferring gas generated during activation and excess electrolyte to the foregoing end part of the battery cell by centrifugal force; and (e) removing the gas and excess electrolyte from the end part.

Degassing method of secondary battery using centrifugal force

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 a drawing member arranged at the rear of the press based on a feed direction of the electrode sheet, the drawing member drawing and transporting the electrode sheet by one pitch, a size corresponding to the unit electrode according to operation of the press, wherein, when one of the grippers draws and transports the electrode sheet, the remaining grippers move to a position for drawing.

Device for notching 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 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.

Device for folding electrode assembly

Growing community of inventors

Cheongju-si, South Korea

Seok Joo Jung