Abstract: A method for extracting electrolyte solution in lithium secondary battery includes (S1) freezing a secondary battery by impregnating in liquid nitrogen and then cutting it without disassembling; (S2) immersing the frozen cut secondary battery in an extraction solvent to extract an electrolyte solution contained in the battery; and (S3) calculating the total amount of the electrolyte solution with respect to the total size of the battery from the content of the extracted electrolyte solution, and then determining a ratio of total amount of the electrolyte solution to the content of the electrolyte solution used in manufacturing the secondary battery to obtain extraction efficiency. A system for extracting an electrolyte solution in a secondary battery is also provided.

Abstract: A high throughput gas-chromatography system for analysis of high-molecular weight additives in a polymer material, and an analysis method using same are provided. A high throughput gas-chromatography system is capable of qualitatively and quantitatively analyzing, at the same time, high-molecular weight additives in a polymer, and reducing analysis time by increasing a heating rate and a column maximum temperature.

Abstract: The present disclosure provides a method for analyzing an additive in a water-based polymer sample, comprising the steps of: (S1) putting the water-based polymer sample containing a polymer, the additive, and water as a solvent into a vial; (S2) putting a porous pouch containing a superabsorbent polymer (SAP) into the vial to absorb the water into the superabsorbent polymer; (S3) removing the porous pouch from the vial and collecting the concentrated polymer sample remaining in the vial; and (S4) performing a pyrolysis gas chromatography (Py-GC)/mass spectrometer (MS) analysis by introducing the concentrated polymer sample to the Py-GC/MS.

Abstract: The present invention relates to a method for analyzing the molecular weight of each polymer comprised in a polymer compound, and an analysis system used therefor. More specifically, the present invention relates to an analysis method of components of polymer compounds and molecular weight by component using a system in which size-exclusion chromatography (SEC)-pyrolysis gas chromatography (Py-GC)-mass spectrometry (MS) are connected in series and to an analysis system used in the method.

Abstract: The present disclosure relates to an apparatus and a method for analysis of a multi-layer adhesive film and provides the apparatus comprising a specimen tray unit; a blade unit; a liquid nitrogen supply unit; and a driving unit, and the method comprising a specimen fixing step; a specimen cooling step; a specimen pre-collection step; a specimen collection step; and a blade separation step.

Abstract: A method for extracting electrolyte solution in lithium secondary battery includes (S1) freezing a secondary battery by impregnating in liquid nitrogen and then cutting it without disassembling; (S2) immersing the frozen cut secondary battery in an extraction solvent to extract an electrolyte solution contained in the battery; and (S3) calculating the total amount of the electrolyte solution with respect to the total size of the battery from the content of the extracted electrolyte solution, and then determining a ratio of total amount of the electrolyte solution to the content of the electrolyte solution used in manufacturing the secondary battery to obtain extraction efficiency. A system for extracting an electrolyte solution in a secondary battery is also provided.

Abstract: The present invention relates to a method for analyzing the molecular weight of each polymer comprised in a polymer compound, and an analysis system used therefor. More specifically, the present invention relates to an analysis method of components of polymer compounds and molecular weight by component using a system in which size-exclusion chromatography (SEC)-pyrolysis gas chromatography (Py-GC)-mass spectrometry (MS) are connected in series and to an analysis system used in the method.

Abstract: The present disclosure provides a method for analyzing an additive in a water-based polymer sample, comprising the steps of: (S1) putting the water-based polymer sample containing a polymer, the additive, and water as a solvent into a vial; (S2) putting a porous pouch containing a superabsorbent polymer (SAP) into the vial to absorb the water into the superabsorbent polymer; (S3) removing the porous pouch from the vial and collecting the concentrated polymer sample remaining in the vial; and (S4) performing a pyrolysis gas chromatography (Py-GC)/mass spectrometer (MS) analysis by introducing the concentrated polymer sample to the Py-GC/MS.

Abstract: The present disclosure relates to an apparatus and a method for analysis of a multi-layer adhesive film and provides the apparatus comprising a specimen tray unit; a blade unit; a liquid nitrogen supply unit; and a driving unit, and the method comprising a specimen fixing step; a specimen cooling step; a specimen pre-collection step; a specimen collection step; and a blade separation step.

Abstract: A high speed treatmenthigh throughput gas-chromatography system for analysis of high-molecular weight additives in a polymer material, and an analysis method using same are provided. A high throughput gas-chromatography system is capable of qualitatively and quantitatively analyzing, at the same time, high-molecular weight additives in a polymer, and reducing analysis time by increasing a heating rate and a column maximum temperature.