Polar Plate for Fuel Cell, Preparation Method, Fuel Cell System, and Vehicle

원문 (중국어)

A polar plate for a fuel cell, a preparation method, a fuel cell system, and a vehicle are disclosed. The polar plate for the fuel cell includes (i) a substrate used for allocating a target reactant of the fuel cell and having an electrical conductivity, (ii) a first material layer arranged on an upper surface of the substrate and having a first surface used for being in contact with an upper surface of the substrate, and (iii) a second material layer comprising a catalytic material layer used for resisting an inverted voltage of the fuel cell and arranged on a second surface of the first material layer opposite to the first surface, the second material layer having a contact surface used for being in contact with a gas diffusion layer of the fuel cell. In solutions provided herein, the objective of resisting the inverted voltage of the fuel cell is achieved by arranging a second material layer for resisting an inversion on the polar plate of the fuel cell, thereby improving the corrosion resistance performance of the polar plate at a high potential, ensuring the working stability of the fuel cell, and improving the durability of the fuel cell.