Lg Energy Solution, Ltd.

Dae Bong Lim

Joon Sung Bae

Hyo Jin Park

Dong Hun Bae

Beom Koon Lee

Suk Hyun Hong

Jin Woo Heo

Cha Hun Ku

Soon Kwan Kwon

Duck Hoe Kim

Ju Hyeon Cho

Hyun Kyung Shin

Ji Su An

The present invention is a method for manufacturing a secondary battery. An electrode assembly and an electrolyte are accommodated into a body of a battery case. The body of the battery case has an accommodation part and a gas pocket part, and a passage that extends from the accommodation part to the outside discharges an internal gas from the accommodation part through the gas pocket part. The battery case is seated in a seating step on a support block, which has an inclined part on a side surface thereof, to support the battery case. The body is pressed to discharge a gas accommodated in the accommodation part through the gas pocket part in the battery case. This method allows easy discharging of internal gas while reducing discharge of the electrolyte with the gas.

Method for manufacturing secondary battery

Discussed is an apparatus for manufacturing a unit cell of a battery, the apparatus including: a center electrode reel from which a center electrode is unwound; an upper separator reel from which an upper separator laminated on a top surface of the center electrode is unwound; a lower separator reel from which a lower separator laminated on a bottom surface of the center electrode is unwound; and a magnetic force generation part disposed above or below a first laminate to apply magnetic force to the first laminate, the first laminate including the lower separator, the center electrode, and the upper separator that are sequentially laminated.

Apparatus and method for manufacturing unit cell

Growing community of inventors

Daejeon, South Korea

Dae Bong Lim