Conductive material dispersion, and electrode and lithium secondary battery manufactured using the same

A conductive material dispersion comprising:

• a carbon-based conductive material;
• a dispersant;
• and
• a dispersion medium,
• wherein the dispersant includes a main dispersant and an auxiliary dispersant, wherein:
• the main dispersant is a nitrile-based copolymer having a α,β-unsaturated nitrile-derived unit and a conjugated diene-derived unit;
• and
• the auxiliary dispersant is a copolymer including an oxyalkylene unit and at least one of a styrene unit and an alkylene unit,
• wherein the conductive material dispersion satisfies Equation (1) below when the content of the main dispersant is W1 (wt %), the content of the auxiliary dispersant is W2 (wt %), the content of the carbon-based conductive material is W3 (wt %), and the BET specific surface area value of the conductive material is A (m2/g) in the conductive material dispersion:
• Equation (1):
• 0.07 A≤{(W1+W2)/W3}×100≤0.3 A.