Abstract: A non-aqueous rechargeable battery includes an electrode body in which a positive plate and a negative electrode plate are stacked in a stacking direction with a separator arranged in between. The positive electrode plate includes a positive electrode substrate, and a positive electrode mixture layer and an insulating layer arranged on each of two opposite surfaces of the positive electrode substrate. The positive electrode substrate includes a positive electrode uncoated portion. The electrode body includes a positive electrode current collector portion in which layers of the positive electrode uncoated portion are stacked in the stacking direction. A first insulating layer on a first surface of the positive electrode substrate, facing a center of the positive electrode current collector portion in the stacking direction, has a thickness that is greater than that of a second insulating layer on a second surface of the positive electrode substrate opposite to the first surface.

Abstract: A fuel cell separator material includes: a composite material containing electrically conductive particles and a binder resin; and soluble resin layers located on both sides of the composite material.

Abstract: A hollow core molding device for use in a shell mold is disclosed, which device uses for molding a hollow core a permanent mold which is parted into a top part and a bottom part in the horizontal direction. This molding device includes a sand container having some sand injecting pipes for supplying shell sand into the permanent mold; a valve mechanism adapted to be communicated with an external vacuum means; and a nozzle means, through which are injected shell sand into cavities in the permanent mold by being fitted therein; the aforesaid valve mechanism being interposed between the sand container and the nozzle means; whereby for injection of shell sand into the permanent mold, the sand container is communicated with the permanent mold, while after injection of shell sand, the permanent mold is communicated with the external vacuum means to discharge under suction un-hardened shell sand within the hardened shell of a core within a desired short period of time.