A conjugated diene-based polymer which includes a repeating unit (a) derived from a conjugated diene compound in a relative amount of 45 to 99 mass %; a repeating unit (b) derived from an aromatic vinyl compound in a relative amount of 0 to 40 mass; and a ...

A binder composition for an electrical storage device may include: a polymer (A); and a liquid medium (B). When a total of repeating units in the polymer (A) is defined as 100 mass %, the polymer (A) may contain 15 mass % to 64 mass % of a repeating unit (...