Low resistance anode having excellent adhesiveness and lithium secondary battery comprising the same

In the present invention, carboxymethyl cellulose having polydispersity index (PDI, PDI = weight average molecular weight (M_w)/number average molecular weight (M_n)) of 10 or more and the weight average molecular weight of 2,000,000 or more is used in cathode mixture slurry, so the phase stability...

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Main Authors YOO JUNG WOO, RYU JIN SOOK, JEONG KWANG HO, RHO YE CHEOL, KIM JE YOUNG
Format Patent
LanguageEnglish
Korean
Published 24.05.2018
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Abstract In the present invention, carboxymethyl cellulose having polydispersity index (PDI, PDI = weight average molecular weight (M_w)/number average molecular weight (M_n)) of 10 or more and the weight average molecular weight of 2,000,000 or more is used in cathode mixture slurry, so the phase stability of the cathode mixture slurry is secured, and excellent adhesion and low resistance of a cathode manufactured therefrom can be achieved. 본 발명은 다분산지수(polydispersity index, PDI, PDI = 중량평균분자량(M)/수평균분자량(M))가 10 이상이고 중량평균분자량이 2,000,000 이상인 카복시메틸 셀룰로오즈를 음극합제 슬러리에 사용함으로써 음극합제 슬러리의 상 안정성을 확보하고, 이로부터 제조된 음극의 우수한 접착성 및 저저항을 달성한다.
AbstractList In the present invention, carboxymethyl cellulose having polydispersity index (PDI, PDI = weight average molecular weight (M_w)/number average molecular weight (M_n)) of 10 or more and the weight average molecular weight of 2,000,000 or more is used in cathode mixture slurry, so the phase stability of the cathode mixture slurry is secured, and excellent adhesion and low resistance of a cathode manufactured therefrom can be achieved. 본 발명은 다분산지수(polydispersity index, PDI, PDI = 중량평균분자량(M)/수평균분자량(M))가 10 이상이고 중량평균분자량이 2,000,000 이상인 카복시메틸 셀룰로오즈를 음극합제 슬러리에 사용함으로써 음극합제 슬러리의 상 안정성을 확보하고, 이로부터 제조된 음극의 우수한 접착성 및 저저항을 달성한다.
Author RYU JIN SOOK
RHO YE CHEOL
KIM JE YOUNG
YOO JUNG WOO
JEONG KWANG HO
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Snippet In the present invention, carboxymethyl cellulose having polydispersity index (PDI, PDI = weight average molecular weight (M_w)/number average molecular weight...
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SubjectTerms BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
Title Low resistance anode having excellent adhesiveness and lithium secondary battery comprising the same
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