抄録
A direct methanol fuel cell (DMFC) is especially expected as a new, high density energy source for mobile usage; however the problem is its power density weakness. As a result, the size of a portable electronic equipment using DMFC is far larger than that of the one which uses another battery. Additionally, steady power supply control is difficult, because output power of the DMFC is changed by the environment etc. In this paper we present a method for controlling the output energy increase in a DMFC. Next, we draw a comparison between the experimental results obtained using this method and these obtained using the constant current control method. Finally, we compare the actual measurement values and the theoretical values obtained using our proposed method.