Patent ID: 7998637

Claim:
A liquid fuel cell comprising: a plurality of unit liquid fuel cells, each comprising a positive electrode for reducing oxygen, a negative electrode for oxidizing a liquid fuel, and an electrolyte layer disposed between the positive electrode and the negative electrode for transporting protons; and a liquid fuel storing portion for storing liquid fuel; wherein the plurality of unit liquid fuel cells are disposed on the same plane, the liquid fuel storing portion comprises a gas-liquid separation hole having a gas-liquid separation film, the gas-liquid separation film is formed of a porous fluorocarbon resin film or a laminate composite of a porous fluorocarbon resin film and other gas-transmitting materials, a surface of the gas-liquid separation film is provided with a polymer coating film having a fluoroalkyl group with two or more fluorine atoms, and an electrically insulating continuous layer consisting of the electrolyte layer and a layer of an electrical insulator other than electrolytes; wherein each electrolyte layer of the plurality of unit liquid fuel cells are independent from each other.