CONDUCTIVE MATERAIL NEGATIVE DISPERSED LIQUID NEGATIVE ELECTRODE PREPARED USING SAME AND RECHARGEABLE LITHIUM BATTERY INCLUDING NEGATIVE ELECTRODE

The present invention relates to a conductive material dispersant for a lithium secondary battery, a negative electrode for a lithium secondary battery manufactured using the same, and a lithium secondary battery including the negative electrode, wherein the conductive material dispersant includes c...

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Bibliographic Details
Main Authors HAN SUNGSOO, KIM MINJAE, SEOL JONGHEON, NAM JUNGHYUN
Format Patent
LanguageEnglish
Korean
Published 12.04.2023
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Summary:The present invention relates to a conductive material dispersant for a lithium secondary battery, a negative electrode for a lithium secondary battery manufactured using the same, and a lithium secondary battery including the negative electrode, wherein the conductive material dispersant includes carbon nanotubes, A and B satisfy the relationship in equation 1 and have a viscosity of 10,000 cps or less when the maximum peak intensity value appearing in the particle size range of 0.5 ㎛ or less is designated as A, and the maximum peak intensity value appearing in the particle size range exceeding 0.5 ㎛ is designated as B in the particle size distribution measurement graph of the dispersant. Equation 1: A/B < 1. 리튬 이차 전지용 도전재 분산액, 이를 사용하여 제조된 리튬 이차 전지용 음극 및 이 음극을 포함하는 리튬 이차 전지에 관한 것으로서, 상기 도전재 분산액은 탄소나노튜브를 포함하고, 기 분산액의 입도 분포 측정 그래프에서, 0.5㎛ 이하의 입도 범위에서 나타나는 최대 피크 강도값을 A라고 하고, 0.5㎛를 초과하는 입도 범위에서 나타나는 최대 피크 강도값을 B라고 할 때, 상기 A와 상기 B는 하기 식 1의 관계를 만족하고, 10,000cps 이하의 점도를 갖는 것이다. [식 1] A/B < 1
Bibliography:Application Number: KR20210131915