Lg Chem, Ltd

Lg Energy Solution, Ltd.

Jae Hyung Kim

Jung Yun Choi

Chul Woong Kim

Donggyun Kang

Hye Ok Kang

Younghyun Cho

In Hwan Choi

Sung Ryong Hong

Jin Hyun Lee

In Young Huh

Sungwoon Heo

Dae Ho Jung

Suhyun Cho

Discussed is a battery pack including: a plurality of battery cells; a case configured to receive the plurality of battery cells therein; a connector configured to electrically connect the battery pack to a device; and a printed circuit board (PCB) configured to control operation of the battery pack, the PCB being located inside or outside the case, and the connector being coupled to the PCB, wherein the connector comprises: a clip portion configured to form a first contact point at which the connector electrically contacts a device pin inserted into the connector; and a contact arm having one side connected to the clip portion, the contact arm being configured to form a second contact point having a distance to the device pin varying in inverse proportion to a distance to the device pin at the first contact point.

Battery pack including clip type connector

Provided is a method for preparing a block copolymer including a step of subjecting a lactide monomer to ring-opening polymerization in the presence of a biosynthesized poly(3-hydroxypropionate) initiator to prepare a polylactide-poly(3-hydroxypropionate) block copolymer.

Method for preparing block copolymer

Provided is a lactic acid-based block copolymer which is biodegradable while having excellent mechanical properties.

Block copolymer

Growing community of inventors

Daejeon, South Korea

Jae Hyung Kim