BINDER RESIN FOR NONAQUEOUS SECONDARY BATTERY ELECTRODE, BINDER RESIN COMPOSITION FOR NONAQUEOUS SECONDARY BATTERY ELECTRODE, SLURRY COMPOSITION FOR NONAQUEOUS SECONDARY BATTERY ELECTRODE, ELECTRODE FOR NONAQUEOUS SECONDARY BATTERY, AND NONAQUEOUS SECONDARY BATTERY

• Main Authors: OKADA HARUKI, SHIMONAKA AYAKO, FUJIE FUMIKO, MOMOSE HIKARU, FUJIKAWA DAISUKE, NODONO MITSUFUMI, MATSUMOTO AKIKAZU, ISHII AKIHIRO, MOMOSE FUMINO
• Format: Patent
• Language: English; Korean
• Published: 26.08.2016
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOSITIONS BASED THEREON; ELECTRICITY; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

본 발명의 비수 이차 전지 전극용 바인더 수지는, 물에 용해시켜 농도 5질량%의 용액으로 하고, 25℃에서 동적 광산란법에 의한 입도 분포 측정을 행했을 때에, I≥ 30(I는 1∼100nm의 입자경 범위에서 관측되는 산란 강도의 총합을 나타낸다.)을 만족한다. 또한, 본 발명의 비수 이차 전지 전극용 바인더 수지는, 하기 화학식 11로 표시되는 구조 단위와, 특정한 구조 단위를 갖는 중합체(B)를 함유한다. 또한, 본 발명의 비수 이차 전지 전극용 바인더 수지는, 특정한 구조 단위와 하기 화학식 22로 표시되는 구조 단위를 갖는 중합체(α), 및/또는 특정한 구조 단위를 갖는 중합체(β1)과 하기 화학식 22로 표시되는 구조 단위를 갖는 중합체(β2)의 혼합물을 함유한다. [화학식 11][화학식 22] A binder resin for a nonaqueous secondary battery electrode of the invention satisfies I s ‰¥ 30 (I s indicates a sum of scattering intensities observed in a particle size range of from 1 to 100 nm) when a solution is formed by dissolving the binder resin in water at a concentration of 5% by mass and particle size distribution is measured by a dynamic light scattering method at 25°C. In addition, the binder resin for a nonaqueous secondary battery electrode of the invention contains a polymer (B) having a structural unit represented by the following Formula (11) and a specific structural unit. In addition, the binder resin for a nonaqueous secondary battery electrode of the invention contains a polymer (±) having a specific structural unit and a structural unit represented by the following Formula (22), and/or a mixture of a polymer (²1) having a specific structural unit and a polymer (²2) having a structural unit represented by the following Formula (22).