Patent ID: 8735014
Filing Date: 2014-05-27
Classification: H01M,Y02E

Abstract:
1. A fuel cell comprising: an electrolyte layer-electrode assembly including an electrolyte layer and a pair of electrodes respectively provided on main surfaces of the electrolyte layer; a frame provided so as to sandwich a peripheral portion of the electrolyte layer; a first separator having electrical conductivity, formed in a plate shape, and provided with a first cooling water manifold hole penetrating the first separator in a thickness direction of the first separator; and a second separator having electrical conductivity, formed in a plate shape, and provided with a second cooling water manifold hole penetrating the second separator in a thickness direction of the second separator, wherein: the electrolyte layer-electrode assembly and the frame are sandwiched between the first separator and the second separator; the frame is provided with a third cooling water manifold hole penetrating the frame in a thickness direction of the frame and communicating with the first cooling water manifold hole and the second cooling water manifold hole; a cooling water channel is formed on a main surface of at least one of the first separator and the second separator so as to communicate with at least one of the first cooling water manifold hole and the second cooling water manifold hole; and a first channel forming portion is located in at least one of the first cooling water manifold hole and the second cooling water manifold hole when viewed from a thickness direction of the electrolyte layer and is provided so as to be opposed to and to face at least a part of an end surface constituting the first cooling water manifold hole or the second cooling water manifold hole so that the end surface obstructs flow of cooling water into the cooling water channel.