Abstract: An electrochemical single battery such as fuel cells, and so forth, having an increased reaction area to augment its output density, which comprises a pair of electrode parts which are mutually opposed to be the electrodes when the electrochemical reaction is effected; reaction layers to carry out the electrochemical reaction, which are positioned between these two electrode parts, each being protruded alternately in one and the same direction from one electrode part toward the other electrode part in confrontation thereto, and being a slant with respect to said electrode parts; and an electrolyte layer interposed between these confronted reaction layers and holding therein an electrolyte which transmits ions to be produced at the time of the electrochemical reaction.

Abstract: An electrode for fuel cell which is constructed with an electrode base, a catalyst layer, and a matrix layer, wherein one or whole part of the catalyst layer and one or whole part of the matrix layer are formed in a porous sheet in juxtaposed relationship.

Abstract: A stepped combination apparatus comprises transferring means for moving a bundle of component wires arranged in plural rows and plural lines in the longitudinal direction; pushing means for pushing the component wires to the line direction to put out a component wire at the opposite side; shifting means for shifting the component wire which is put out by the pushing means, to the other row; and stepped-bending means for stepped-bending the component wire which is put out. The operation time can be significantly shortened and a U-shape bundle of component wires can be treated by the apparatus.

Abstract: A stepped combination apparatus comprises transferring means for moving a bundle of component wires arranged in plural rows and plural lines in the longitudinal direction; pushing means for pushing the component wires to the line direction to put out a component wire at the opposite side; shifting means for shifting the component wire which is put out by the pushing means, to the other row; and stepped-bending means for stepped-bending the component wire which is put out. The operation time can be significantly shortened and a U-shape bundle of component wires can be treated by the apparatus.