Lg Chem, Ltd

Jeongyong Lee

Choong Hoon Lee

Myung Han Lee

Sung Hyun Park

Myunghan Lee

Dae Chul Kim

Hyojoon Lee

Youn Sun Nam

Ki Yeon Jo

Young Hoon Na

Yutaek Sung

Sangeun Kim

Hyejin Han

Changkwon Chung

Jeongnam Kim

Hyungmin Ahn

Provided are an ethylene-vinyl acetate copolymer having a high degree of crosslinking by controlling a temperature difference in an autoclave reactor and an input ratio of an initiator during polymerization, even though a reduced amount of a crosslinking agent is used, and a preparation method thereof.

Ethylene-vinyl acetate copolymer and preparation method thereof

A method of preparing a poly(ether ester) copolymer is provided, and more particularly, a method of preparing a poly(ether ester) copolymer having a high content of a polyether and high viscosity by using a dicarboxylic acid as a starting material is provided. According to the present invention, a dicarboxylic acid of which production cost is low is used as a starting material to prepare a poly(ether ester) copolymer having a high content of polyether and having a high viscosity without solid-phase polymerization.

Method of preparing poly(ether ester) copolymer

A method for predicting the likelihood of coagulation of active material particles contained in a slurry for electrode preparation includes measuring rheological properties before and after the slurry is subjected to a shear. The estimation method enables a prediction of filter clogging with a slurry, and thus makes it possible to estimate the likelihood of filter clogging with a slurry without passing the slurry directly through the filter, thereby improving the efficiency of a battery manufacturing process.

Method for estimating filter clogging with slurry for electrode preparation

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Daejeon, South Korea

Jeongyong Lee