Electrode signs in a fuel cell

[dakoad]

Hello!

I was confused by the electrode signs in an alkaline hydrogen fuel cell. I know that in a galvanic cell the cathode is positive, but in an electrolytic cell, it's negative.

Isn't a fuel cell a galvanic one? Why is the cathode negative? And how do the electrons move after the redox processes?

 

Thanks a lot,

Dan.

[studiot]

Perhaps one of the Chemists will help, meanwhile read this thread

 

http://www.scienceforums.net/topic/86381-basics-of-batteries/?hl=anode