BINDER COMPOSITION FOR NEGATIVE ELECTRODE MEHOD FOR PREPARING THE SAME NEGATIVE ELECTRODE AND SECONDARY BATTERY

The present invention relates to a binder composition for negative electrode, a method for manufacturing the same, a negative electrode, and a secondary battery. The binder composition for an anode includes a crosslinked copolymer containing (a) a first polymer comprising a main chain containing a f...

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Bibliographische Detailangaben
Hauptverfasser:	LEE SUNGJIN, WOO JUNGEUN, KIM YOONJUNG, SON JEONGMAN, KIM DOYUN
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS ELECTRICITY 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
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Beschreibung
Zusammenfassung:	The present invention relates to a binder composition for negative electrode, a method for manufacturing the same, a negative electrode, and a secondary battery. The binder composition for an anode includes a crosslinked copolymer containing (a) a first polymer comprising a main chain containing a first repeating unit derived from a (meth)acrylamide-based monomer, a second repeating unit derived from an unsaturated carboxylic acid-based monomer, and a third repeating unit derived from a nitrile-based monomer, and a crosslinked chain which crosslinks the main chain and contains a fourth repeating unit derived from poly(alkylene glycol)di(meth)acrylate; and (b) a second polymer which crosslinks the first polymer and includes a fifth repeating unit derived from a polyalkyleneimine-based crosslinker. Accordingly, the binder composition for a negative electrode of the present invention can improve the charge/discharge cycle characteristics and life characteristics of a battery. 본 발명은 음극용 바인더 조성물과 이의 제조방법, 음극 및 이차전지에 관한 것으로, 상기 음극용 바인더 조성물은 (a) (메트)아크릴아미드계 단량체 유래 제1 반복 단위, 불포화 카르본산계 단량체 유래 제2 반복 단위, 및 니트릴계 단량체 유래 제3 반복 단위를 함유하는 주사슬, 및 상기 주사슬을 가교 결합시키고, 폴리(알킬렌글리콜)디(메트)아크릴레이트 유래 제4 반복 단위를 함유하는 가교 사슬을 포함하는 제1 고분자; 및 (b) 상기 제1 고분자를 가교 결합시키고, 폴리알킬렌이민계 가교제 유래 제5 반복 단위를 포함하는 제2 고분자;를 함유하는 가교 공중합체를 포함한다.