Fuel cartridge, fuel cell and portable electrical appliance including fuel cell

A fuel cartridge that houses liquid fuel, comprising:

• a fuel cartridge mounting adapted to detachably mount the fuel cartridge to a fuel cell for introduction of liquid fuel into a fuel receptacle in a fuel cell;
• a liquid fuel housing chamber having a fixed volume;
• a gas housing chamber;
• a gas-liquid separation film that separates from each other liquid fuel in the liquid fuel housing chamber and fuel gas in the gas housing chamber, which fuel gas comprises vaporized liquid fuel and allows passage of fuel gas from the liquid fuel housing chamber to the gas housing chamber;
• a shutter that adjusts a degree of exposure of the gas-liquid separation film;
• and
• a temperature dependent controller for adjusting the shutter based on a temperature in the liquid fuel housing chamber.