BIPOLAR PLATE WITH COOLANT FLOW CHANNEL

A bipolar plate with a coolant flow channel, includes a fuel flow field plate and an oxidant flow field plate. The bipolar plate includes an alignment area and at least two misalignment areas. In a fuel cell stack containing the bipolar plate, a coolant is enabled to flow from a coolant inlet channel to a coolant flow channel of one misalignment area without passing through a coolant flow channel of the alignment area. Also, the coolant is enabled to flow from a coolant flow channel of the other misalignment area to a coolant outlet channel without passing through the coolant flow channel of the alignment area.