Method of manufacturing formed body for electrode

A method of manufacturing a formed body for an electrode comprising in order:

• a first step of preparing an electrode material containing an electrode active material;
• a second step of placing a shape retaining member having a rectangular tubular shape with rectangular opening portions, in which one end portion X of a pair of long side end portions of one opening portion L is present closer to the other opening portion M than the other end portion Y of the pair of long side end portions, with the opening portion L facing down so that an axial direction of the shape retaining member is parallel to a direction of gravitational force, and supplying the electrode material into the shape retaining member from the opening portion M of the shape retaining member;
• and
• a third step of discharging the electrode material in the shape retaining member onto a support from the opening portion L while relatively moving the opening portion L of the shape retaining member and the support along a short side direction of the opening portion L, to form a film of the electrode material on the support,
• wherein in a case where a bulk density of the electrode material prepared in the first step is denoted by D1 [g/cm3] and a bulk density of the electrode material at the opening portion L of the shape retaining member is denoted by D2 [g/cm3], bulk density D2/bulk density D1=1.1 to 30 is satisfied, and
• in a case where a width of the opening portion L in the short side direction is denoted by T1 [mm] and a distance between the end portion X of the opening portion L and the support is denoted by T2 [mm], a relationship of width T1>distance T2 is satisfied.