Lg Chem, Ltd

Lg Energy Solution, Ltd.

Kyung Su Oh

Jae Min Lee

Se Woo Yang

Yoon Gyung Cho

Sang Min Park

Jae Hun Yang

Eun Suk Park

Young Gil Kim

Gyu Jong Bae

Kyoung Bin Im

Cha-Hun Ku

Sung Jong Kim

The present application can provide a battery module, a manufacturing method thereof, and a resin composition applied to the manufacturing method. The present application can provide a battery module having excellent power relative to volume, while being manufactured in a simple process and at a low cost, a manufacturing method thereof, and a resin composition applied to the manufacturing method.

Method of manufacturing a battery module

Battery module having resin layer in module case

Disclosed is a secondary battery having a novel structure in which a jelly-roll type electrode assembly ('jelly-roll') in which a cathode including a cathode active material coated portion on at least one surface of a cathode current collector, an anode including an anode active material coated portion on at least one surface of an anode current collector, and a separator disposed therebetween are wound and an electrolyte are accommodated in a battery case, and at least one of a cathode lead coupled to a cathode uncoated portion and an anode lead coupled to an anode uncoated portion includes a first metal layer used for coupling with an electrode uncoated portion and/or coupling with a battery case and a second metal layer having a relatively lower resistance than that of the first metal layer, wherein the first and second metal layers are coupled to each other.

Secondary battery of novel structure

Growing community of inventors

Daejeon, South Korea

Kyung Su Oh