Provided is a current collector which can enlarge a width between a pair of electrode connection parts so as to reduce a blank area even by using blank with a same area. An positive electrode current collector (130) includes a terminal connecting portion (131), a first electrode connecting portion (132) including a first surface (132a) extending forward and downward from a right frontal portion (131a), a second electrode connecting portion (133) including a second surface (133a) extending forward and downward from a left frontal portion (131b), a first twisted portion (134) having an end portion connected to the right frontal portion (131a) and the other end portion connected to an upper end portion (132b), and a second twisted portion (135) having an end portion connected to the left frontal portion and the other end portion connected to an upper end portion. A distance (A) between the first surface and the second surface is larger than a distance (B) between the center of the right frontal portion and the center of the left frontal portion.