Conductive material dispersion liquid, electrode slurry including the same, and lithium secondary battery including the same

A conductive material dispersion liquid comprising:

• carbon nanotubes dispersed in a mixture of a liquid cellulose polymer and a polyethylene oxide polymer,
• wherein a content of the carbon nanotubes is 0.2% by weight to 8.0% by weight based on a total weight of the conductive material dispersion liquid,
• a content of the cellulose polymer is 50% by weight to 400% by weight based on 100% by weight of the carbon nanotubes;
• a content of the polyethylene oxide polymer is 10% by weight to 100% by weight based on 100% by weight of the conductive material,
• wherein the carbon nanotubes have an average length of length of 0.1 μm to 500 μm, and
• wherein the carbon nanotubes have an outer diameter of 1 nm to 15 nm.