A prismatic secondary battery comprising: a battery container containing an electric storage element and having a pair of wide surfaces, a pair of narrow surfaces, a bottom surface, and an opening; a lid having a first through hole and a second through hole and closing the opening of the battery container; a flat plate-like first current collector plate inserted into the first through hole and extending, along the wide surfaces of the battery container, in a straight line toward the bottom surface; a flat plate-like second current collector plate inserted into the second through hole and extending, along the wide surfaces of the battery container, in a straight line toward the bottom surface, wherein the first current collector plate and the second current collector plate are made of metal materials different from each other as main materials, and the first current collector plate is a positive electrode current collector plate containing aluminum as the main material, and the second current collector plate is a negative electrode current collector plate containing copper as the main material; a wound electrode group having a first positive electrode foil exposed portion which is welded and joined to the first current collector plate, and a second negative electrode foil exposed portion which is welded and joined to the second current collector plate; and an insertion position of the first current collector plate deviates on a side of one of the wide surfaces with respect to an insertion position of the second current collector plate, characterized in that the first through hole and the second through hole deviate on the side of one of the wide surfaces with respect to a center of the lid (Lc), the first electrode current collector plate is arranged at an insertion position separated from the center of the lid (Lc) by a first deviation (δ1), and the second electrode current collector plate is arranged at an insertion position separated from the center of the lid (Lc) by a second deviation (δ2), wherein the first deviation (δ1) is larger than the second deviation (δ2), and the first electrode foil exposed portion is thicker than the second electrode foil exposed portion of the wound electrode group, wherein the first deviation (δ1) is set to half the thickness of the first electrode foil exposed portion, and the second deviation (δ2) is set to half the thickness of the second electrode foil exposed portion of the wound group. a battery container containing an electric storage element and having a pair of wide surfaces, a pair of narrow surfaces, a bottom surface, and an opening; a lid having a first through hole and a second through hole and closing the opening of the battery container; a flat plate-like first current collector plate inserted into the first through hole and extending, along the wide surfaces of the battery container, in a straight line toward the bottom surface; a flat plate-like second current collector plate inserted into the second through hole and extending, along the wide surfaces of the battery container, in a straight line toward the bottom surface, wherein the first current collector plate and the second current collector plate are made of metal materials different from each other as main materials, and the first current collector plate is a positive electrode current collector plate containing aluminum as the main material, and the second current collector plate is a negative electrode current collector plate containing copper as the main material; a wound electrode group having a first positive electrode foil exposed portion which is welded and joined to the first current collector plate, and a second negative electrode foil exposed portion which is welded and joined to the second current collector plate; and an insertion position of the first current collector plate deviates on a side of one of the wide surfaces with respect to an insertion position of the second current collector plate, characterized in that the first through hole and the second through hole deviate on the side of one of the wide surfaces with respect to a center of the lid (Lc), the first electrode current collector plate is arranged at an insertion position separated from the center of the lid (Lc) by a first deviation (δ1), and the second electrode current collector plate is arranged at an insertion position separated from the center of the lid (Lc) by a second deviation (δ2), wherein the first deviation (δ1) is larger than the second deviation (δ2), and the first electrode foil exposed portion is thicker than the second electrode foil exposed portion of the wound electrode group, wherein the first deviation (δ1) is set to half the thickness of the first electrode foil exposed portion, and the second deviation (δ2) is set to half the thickness of the second electrode foil exposed portion of the wound group.