| 摘要 |
An electrochemical energy generating apparatus with which the crossover of a fuel can be suppressed and a method of driving the apparatus are disclosed. The electrochemical energy generating apparatus (e.g., a fuel cell system) includes an electrochemical device (fuel cell) which has an electrolyte membrane 6 clamped between opposed electrodes and which generates electrochemical energy by a reaction of an alcohol with water at one (fuel electrode) of the electrodes and a fuel evaporating section by which a fuel including said alcohol and substantially not containing water is supplied in a gaseous state to the side of the one of the electrodes of the electrochemical device. The method of driving the electrochemical energy generating apparatus 1 includes supplying the fuel in the gaseous state to the one of the electrodes by the fuel evaporating section.
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