| abstract |
Provided is a direct formic acid fuel cell capable of ensuring long-term operability of a direct formic acid fuel cell by controlling the concentration of formic acid in real time, and an operating method thereof. 12, a unit cell 10 having a polymer electrolyte membrane and a cathode 11, a formic acid supply unit (21, 22, 23) for supplying formic acid as fuel to the anode 12, and an air supply for supplying air to the cathode 11 Unit 60, a formic acid concentration measuring device 30 for measuring the concentration of a part of formic acid provided to anode 12 in real time, and a concentration value measured from formic acid concentration measuring device 30 and receiving the concentration value set in advance. Corresponds to the formic acid concentration measuring device 30 real-time measurement so that the measured concentration value does not fall outside the set concentration value range compared to Te, and a control unit 40 for controlling the concentration of formic acid to be provided to the anode 12 in real time. [Selection] Figure 1 |