Abstract: A partition member has two surfaces in a thickness direction, and separates single cells that make up an assembled battery. When the average temperature of one of the two surfaces exceeds 180° C., a thermal resistance per unit area (?1) in the thickness direction satisfies Expression 1 below, and when the average temperatures of both of the two surfaces do not exceed 80° C., a thermal resistance per unit area (?2) in the thickness direction satisfies Expression 2 below. ?1?5.0×10?3(m2·K/W)??(Expression 1), and ?2?4.0×10?3(m2·K/W)??(Expression 2).

Abstract: An ion implantation method includes: placing, in an atmosphere, a mask, which is used in conjunction with a tray for accommodating a substrate for a solar cell, at a first position covering a partial area on a surface of the substrate while maintaining the mask aligned relative to the substrate or at a second position distanced from the surface of the substrate; implanting, in a vacuum, ions in a first area on the surface of the substrate while the mask is placed at the first position; and implanting, in a vacuum, ions in a second area on the surface of the substrate while the mask is placed at the second position.

Abstract: A method of manufacturing a solar cell includes forming an emitter layer on a light-receiving surface side of a substrate for a solar cell, forming an antireflection film, patterned so as to expose a part of the light-receiving surface of the substrate, on the substrate, forming a contact region by implanting an impurity to the exposed part by using the antireflection film as a mask, and forming a light-receiving surface electrode on the contact region.