CARBON NANOTUBE DISPERSION LIQUID, METHOD FOR PREPARING SAME, ELECTRODE SLURRY COMPOSITION COMPRISING SAME, ELECTRODE COMPRISING SAME, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

• Main Authors: KANG, Seong Kyun, KIM, Taek Gyoung, YOO, Kwang Hyun
• Format: Patent
• Language: English; French; Korean
• Published: 29.06.2023
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOUNDS THEREOF; ELECTRICITY; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The present specification provides: a carbon nanotube dispersion liquid comprising single-walled carbon nanotubes (SWCNTs) having the purity of 95% or more and a cellulose-based dispersant, wherein the cellulose-based dispersant has the value of 7 or more and 13 or less calculated by mathematical formula 1; a method for preparing same; an electrode slurry composition comprising same; an electrode comprising same; and a lithium secondary battery comprising same. La présente invention concerne : un liquide de dispersion de nanotubes de carbone comprenant des nanotubes de carbone à paroi unique (SWCNT) ayant une pureté supérieure ou égale à 95 % et un dispersant à base de cellulose, le dispersant à base de cellulose ayant une valeur supérieure ou égale à 7 et inférieure ou égale à 13 calculée par la formule mathématique 1; une méthode pour sa préparation; une composition de suspension d'électrode le comprenant; une électrode le comprenant; et une batterie secondaire au lithium le comprenant. 본 명세서는 순도가 95% 이상인 단일벽 탄소나노튜브(SWCNT) 및 셀룰로오스계 분산제를 포함하고, 상기 셀룰로오스계 분산제는 수학식 1로 계산된 값이 7 이상 13 이하인 것인 탄소나노튜브 분산액, 이의 제조방법, 이를 포함하는 전극 슬러리 조성물, 이를 포함하는 전극 및 이를 포함하는 리튬 이차전지를 제공한다.