Lg Energy Solution, Ltd.

Lg Chem, Ltd

Hwi-Soo Yang

Sang-Hoon Choy

Jin-Young Son

Hyung-Suk Cho

Jong-Heon Seol

Woo-Ha Kim

Ga-Hyun Lim

A method that allows prediction of phase stability of an electrode slurry through a simple method of determining a change in viscosity of the electrode slurry. Therefore, only the electrode slurry having high phase stability is selected before electrode slurry is introduced to a process for manufacturing an electrode. Then, the selected electrode slurry is introduced to the process to provide an improved effect of process efficiency.

Method for predicting processability of electrode slurry and selecting electrode binder

A method for evaluating phase stability of an electrode mixture slurry, including the steps of: (S1) introducing the electrode mixture slurry to a rheometer; (S2) applying a first shear rate to the electrode mixture slurry; (S3) applying a second shear rate after applying the first shear rate to the electrode mixture slurry, wherein the second shear rate is higher than the first shear rate; (S4) applying a third shear rate after applying the second shear rate to the electrode mixture slurry, wherein the third shear rate is lower than the second shear rate; and (S5) comparing the shear viscosity at the first shear rate with the shear viscosity at the third shear rate. An apparatus for evaluating phase stability of the electrode mixture slurry is also provided.

Method and apparatus for evaluating phase stability of electrode mixture slurry

Disclosed is a dissolution mixer, which includes: a dissolution bath configured to accommodate a powder and a solvent for dissolving the powder; a powder input unit located at an outer side of the dissolution bath; an impeller installed to be rotatable inside the dissolution bath; and an anchor located inside the dissolution bath and having a passage of the powder inputted by the powder input unit and a powder spouting hole connected to the passage.

Dissolution mixer

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Daejeon, South Korea

Hwi-Soo Yang