The invention discloses a fuel battery in the shape of a dry battery, comprising a shell and a core component, where the shell adopts a shape compatible with that of shell of a dry battery and has an inner space and its top and bottom surfaces are arranged with anode and cathode contacts, the inner space is divided into at least two separate chambers, where the first chamber is used to store anode fuel and the second one is used to store cathode fuel; the core component comprises at least a film electrode set and is arranged in the inner space, anodes of these film electrode sets are located in the first chamber and cathodes of them in the second chamber; the anode fuel in the first chamber can flow to the anodes and the cathode fuel in the second chamber can flow to the cathodes; and the anode and cathode contacts are connected to the anodes and cathodes of at least a film electrode set. |