Lg Energy Solution, Ltd.

Lg Chem, Ltd

Dae Won Lee

Dong Hyeuk Park

Sang Wook Kim

Sung Chul Park

Yong Ho Seok

Dong Wook Roh

Joon Kui Ahn

Yu Jin Noh

Ill Soo Sohn

Jung Hoon Lee

Ki Jun Kim

Jae Hong Kim

Ki Eun Sung

Jeong Ki Kim

Hyun Jin Jeon

Hak Sik Lee

Jun Wan Kim

Kyoung Young Song

Hak Seong Kim

Han Byul Seo

Byeong Woo Kang

Sang Chul Lim

Hui Ho Kim

Moo Yong Uhm

Byoung Hoon Kim

Sung Chui Park

Hyun Seok Lee

Dong Ho Lee

A method for manufacturing a secondary battery includes a forming step of pressing a pouch sheet by using a press die so that left and right accommodation grooves, which are bilaterally symmetrical to each other and are opened upward, and a bridge connecting the left and right accommodation grooves to each other are formed in the pouch sheet, wherein the bridge protrudes upward with respect to bottom surfaces of the left and right accommodation grooves, and a curved portion having a rounded shape is formed on an upper end of the bridge, a seating step of seating an electrode assembly in one of the left and right accommodation grooves, and a folding step of folding the pouch sheet so that the left and right accommodation grooves face each other.

Method for manufacturing secondary battery and pouch for secondary battery

The present invention relates to a secondary battery, a method for manufacturing the same, and a pressing block for manufacturing the secondary battery. The method for manufacturing the secondary battery according to the present invention comprises a forming step of forming a pouch sheet to form an accommodation part in which an electrode assembly is accommodated, a folding step of folding the pouch sheet with respect to a folding part to accommodate the electrode assembly in the accommodation part, and to block the accommodation part from outside to form a battery case, and an anti-wrinkle step of forming an anti-wrinkle bending part on an outer shell of the pouch sheet to prevent wrinkles from being generated on the outer shell of the folded pouch sheet.

Secondary battery and method for manufacturing the same, and pressing block for manufacturing secondary battery

Pouch for a secondary battery including a bridge and accommodation grooves

A method of preparing an electrode for an electrode assembly having a structure in which electrodes are laminated, including:

Method of preparing electrodes having uniform quality and electrode assembly preparation method including the same

The present invention discloses a method of manufacturing an electrode for a secondary battery by using a single process to notch and cut a unit electrode from an electrode sheet. The method for manufacturing electrodes for a secondary battery includes supplying an electrode sheet in a moving direction (MD), wherein the electrode sheet has a plurality of coated portions and uncoated portions alternately arranged along the MD, wherein each coated portion has an electrode active material, and each uncoated portion does not have an electrode active material; and cutting the uncoated portions to form the plurality of unit electrodes.

Method for manufacturing secondary battery electrode, and secondary battery electrode manufactured thereby

Growing community of inventors

Cheong-si, South Korea

Dae Won Lee