Method for manufacturing slurry for positive electrode of nonaqueous electrolyte secondary battery and apparatus therefor

An apparatus for manufacturing a slurry for a positive electrode of a nonaqueous electrolyte secondary battery using an aqueous solvent containing an alkali metal complex oxide, comprising:

• a path on which a raw material slurry containing a solid content and a solvent as slurry raw materials for a positive electrode of the nonaqueous electrolyte secondary battery flows;
• and
• an inorganic carbon supply portion supplying inorganic carbon to the raw material slurry flowing along the path,
• wherein a neutralization treatment is performed on an alkali component in the raw material slurry while causing the raw material slurry to flow along the path.