Method of manufacturing electrode slurry for lithium secondary battery, and electrode slurry

A method of manufacturing electrode slurry for a lithium secondary battery, the method comprising:

• a first step of obtaining a kneaded material by dry-kneading an electrode active material and a binder;
• a second step of dispersing a solvent comprising fibrous carbon, water, and a nonionic polymer, using a media-type disperser to obtain a slurry, wherein the fibrous carbon is a conductive material;
• a third step of wet-kneading the slurry obtained in the second step and the kneaded material obtained in the first step and water;
• a fourth step of wet-kneading by adding water to a kneaded material obtained in the third step;
• a fifth step of wet-kneading by adding a binder to a kneaded material obtained in the fourth step;
• and
• a sixth step of obtaining an electrode slurry to be applied to a collector by agitating and defoaming a kneaded material obtained in the fifth step,
• a fiber length of the fibrous carbon in the electrode slurry obtained in the sixth step being 2 to 7 μm.