Method for tempering fuel cell, involves using exothermy of hydrogenation reaction of metallic component with hydrogen for heating fuel cell under formation of metallic hydride

摘要

The method involves using an exothermy of a hydrogenation reaction of a metallic component (14) with hydrogen for heating the fuel cell (10) under formation of a metallic hydride (14') and an endothermy of a dehydrogenation reaction of the metallic hydride for cooling the fuel cell under formation of a metallic component and hydrogen. The exothermic and endothermic reaction enthalpy is conveyed by a cooling agent. An independent claim is also included for a fuel cell arrangement comprising a tempering equipment for keeping the fuel cell at a moderate temperature.