Lg Energy Solution, Ltd.

Jeeeun Kim

Duk Hyun Ryu

Hyoung Kwon Kim

Hayoung Heo

Namwon Kim

Pil Kyu Park

A winding device for manufacturing an electrode assembly is provided. The winding device includes a main body portion; a winding core for winding an electrode and a separation film; and a foreign particle remover connected to the main body portion and removing foreign particles, wherein the foreign particle remover is formed to surround the winding core while separated from the winding core.

Winding device for manufacturing electrode assembly

A jelly-roll type of electrode assembly in which a negative electrode sheet, a positive electrode sheet, and a separation membrane interposed between the negative electrode sheet and the positive electrode sheet are wound together is provided. The electrode assembly also includes: at least one electrode tab attached to the negative electrode sheet or the positive electrode sheet and at least a portion extending outside; and a heat radiation tape adhered to the electrode. The electrode tab to which the heat radiation tape is adhered is positioned between the center part of the wound electrode assembly and an external circumferential surface, or on the external circumferential surface, the heat radiation tape includes a heat diffusion layer, and the heat diffusion layer includes at least one of graphite and a metal foil.

Electrode assembly and rechargeable battery including the same

An electrode assembly including a negative electrode sheet, a positive electrode sheet, and a separator, wherein the separator may be disposed at an outermost side of the electrode assembly, an electrode tab disposed further inside than the separator may be attached to one of the negative electrode sheet and the positive electrode sheet, and a metal layer disposed between the electrode tab and the separator may include an adhesive material.

Cylindrical type secondary battery

A secondary battery is provided. The secondary battery includes an electrode assembly including a negative electrode sheet, a positive electrode sheet, and a separation membrane; and a heat radiation tape disposed at an external circumferential surface of the electrode assembly. The heat radiation tape includes a heat diffusion layer, and the heat diffusion layer includes at least one of graphite and a metal foil.

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Daejeon, South Korea

Jeeeun Kim