▎ 摘　　要

NOVELTY - A dispersant composition comprises an acrylic polymer (A), an amine compound (B) having a boiling point of 200° C or less, and an organic solvent (C). The acrylic polymer (A) contains a carbonyl-containing structural unit (I) and the compound (B) is at least one selected from secondary aliphatic amines, tertiary aliphatic amines, aromatic amines, secondary aromatic amines, tertiary aromatic amines and heterocyclic amines. USE - Dispersant composition used in positive electrode paste used for manufacturing positive electrode coating film for power storage device (all claimed). ADVANTAGE - The dispersant composition is capable of reducing the viscosity of the carbon material-based conductive material slurry and the positive electrode paste and provides positive electrode coating film having reduced resistance and power storage electrodes having reduced DC resistance value. DETAILED DESCRIPTION - A dispersant composition comprises an acrylic polymer (A), an amine compound (B) having a boiling point of 200° C or less, and an organic solvent (C). The acrylic polymer (A) contains a carbonyl-containing structural unit of formula (I) and the compound (B) is at least one selected from secondary aliphatic amines, tertiary aliphatic amines, aromatic amines, secondary aromatic amines, tertiary aromatic amines and heterocyclic amines. R -R =H, methyl or ethyl; X =N or O;and R =8-30C hydrocarbyl. INDEPENDENT CLAIMS are included for the following: a carbon material-based conductive material slurry which contains the dispersant composition and a carbon material-based conductive material (D); positive electrode paste, which contains the dispersant composition; production of positive electrode coating film which involves applying the positive electrode paste to a current collector and drying the coated current collector; and production of positive electrode for an power storage device, which involves forming the positive electrode coating film.