FUEL CELL, BIPOLAR PLATE AND BIPOLAR PLATE ASSEMBLY FOR FUEL CELL

The disclosure relates to a fuel cell, a bipolar plate and a bipolar plate assembly for a fuel cell. The bipolar plate comprises: at least one distributing region; at least one first through hole which communicates with the distributing region via a circumferential opening on a sidewall as an inlet of a first reactant; and at least one second through hole which communicates with the distributing region via a circumferential opening on a sidewall as an outlet of a first reactant. Each of the at least one first through hole and the at least one second through hole has a cross section of approximately trapezoid with an arc edge or an oblique edge, and the circumferential opening is formed on a curved sidewall or on an oblique sidewall. The fuel cell has improved structural design of the bipolar plate to improve flow uniformity and hydrothermal management of the fuel cell, thereby improving large current discharge performance and power density of the fuel cell. It can improve power performance, fuel efficiency and cruising range of electric vehicles.