| abstract |
Provided are: a dispersant composition which is for secondary battery slurry and has an excellent dispersion stability; a secondary battery slurry composition having excellent applicability and drying property of a coated film; a method for preparing a secondary battery slurry composition having excellent applicability and drying property of a coated film; and a battery using the secondary battery slurry composition. This dispersant composition for secondary battery slurry contains, at a specific weight ratio, a specific aqueous polymer component A, a specific polymer particle component B, and a surfactant component C, wherein the glass transition point of component A is Tg(A)(°C), the glass transition point of component B is Tg(B)(°C), and any one among the following equation (I) and equation (II) is satisfied. 80 < Tg(A)-Tg(B) < 250 (I), 0 <｜Tg(A)-Tg(B)｜< 50 (II) |