Lg Chem, Ltd

Lg Energy Solution, Ltd.

Do-Hwa Jung

Dong-Myung Kim

Soon-Ho Ahn

Tae-Gyun Noh

Taek-Soo Lee

In-Gu An

Min-Gyu Kim

Jin-Young Son

Jae-Bin Chung

Wen Xiu Wang

Ki-Won Sung

Sung-Bin Park

Hyun-Won Lee

Seung-Hark Park

Do-Yeon Kwon

Sung-Hwan Kim

Tae-In Kim

An apparatus for coating electrode active material slurry includes: a transfer unit continuously transferring an electrode current collector in a predetermined process direction; and a coating die which is reciprocally movable in the process direction or an opposite direction to the process direction and coats the active material slurry on a predetermined coating area of the electrode current collector transferred by the transfer unit, wherein the coating die stands by at a predetermined coating start position and, when a balcony region corresponding to a leading end of the coating area reaches the coating start position, coats the active material slurry on the balcony region while moving from the coating start position to a main coating position that is spaced apart from the coating start position by a predetermined distance in the opposite direction.

Apparatus and method for coating electrode active material slurry

There are provided a method of manufacturing a jelly roll-type electrode assembly and a method of manufacturing a secondary battery using the electrode assembly. The method of manufacturing the electrode assembly includes notching a cathode and an anode, elongated in one direction, in a constant size and shape to form a plurality of electrode units, laminating the cathode and the anode with a separator disposed therebetween to form a unit cell, and winding the unit cell by bending the connection units so that the electrode units of the cathode and the anode overlap each other. In the manufacturing of the jelly roll-type electrode assembly and the polymer secondary battery, whose production process can be easily simplified, a jelly roll-type electrode assembly and a polymer secondary battery, both of which exhibit excellent design flexibility, can be manufactured.

Method of manufacturing jelly roll-type electrode assembly and method of manufacturing jelly roll-type polymer secondary battery

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Daejeon, South Korea

Do-Hwa Jung