BINDER COMPOSITION FOR SECONDARY BATTERY ELECTRODES CATHODE FOR LITHIUM-SULFUR SECONDARY BATTERY AND LITHIUM-SULFUR SECONDARY BATTERY COMPRISING THE SAME

• Main Authors: KIM BONG SOO, NOH JAE KYO, AHN JEE HYUN
• Format: Patent
• Language: English; Korean
• Published: 02.07.2024
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; ELECTRICITY; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; THEIR PREPARATION OR CHEMICAL WORKING-UP

본 발명은 리튬 치환된 폴리아크릴산, 리튬 치환된 카르복시메틸셀룰로오스 및 콜로이드 입자형 수계 바인더 수지를 포함함으로써, 생산성 및 출력 성능을 높은 수준으로 유지하며, 전극에서의 접착력을 개선할 수 있는 이차전지 전극용 바인더 조성물, 리튬-황 이차전지용 양극 및 리튬-황 이차전지를 제공한다. The present invention provides a binder composition for a secondary battery electrode, a positive electrode for a lithium-sulfur secondary battery, and a lithium-sulfur secondary battery, comprising a lithium-substituted polyacrylic acid, a lithium-substituted carboxymethylcellulose, and a colloidal particulate water-based binder resin, thereby maintaining productivity and output performance at a high level, and improving an adhesion to the electrode.