| 摘要 |
PURPOSE: A fuel cell system is provide to secure the durability and the stable output of a fuel cell stack by improving relative humidity of supply-air supplied to a humidifier, thereby improving humidifying performance of a humidifier. CONSTITUTION: A fuel cell system comprises: a stack consisting of an assembly of fuel cells; an air supply unit for supplying air to the air electrode of the fuel cell; a humidifier(50) humidifying air supplied from the air supply unit through exhaust air with high temperature and high humidity exhausted from the air electrode; and a hydrogen supply unit for supplying hydrogen to the fuel electrode of the fuel cell. The humidifier comprises a housing(51), and a hollow fiber membrane(56) receiving exhausted air and the supplied air and humidifying the supplied air through moisture-exchange thereof. |
