Patent ID: 7871733
Filing Date: 2011-01-18
Classification: H01M,Y02E

Abstract:
1. A fuel cell, comprising: an electrolyte layer; an electrode formed on both sides of the electrolyte layer; a gas diffusion layer provided on a respective electrode on each side of the electrolyte layer, a gas separator that is laminated on the electrolyte layer and the electrode and forms, in combination with the electrode, a gas flow path to make a flow of a reactive gas that is subjected to an electrochemical reaction; a first water guide element that is provided between the electrode and the gas separator and is arranged to enable migration of water from and to the electrode and to guide water in an electrode plane direction; and a gas outlet that is open at one end of the gas flow path to be at least partly overlapped with one end of the first water guide element and discharges the flow of the reactive gas from the gas flow path, where the gas outlet is designed to have a higher flow resistance of the reactive gas than a flow resistance in the gas flow path, wherein the gas outlet is formed at one end of the first water guide element and the end of the gas flow path adjacent the gas outlet is blocked, and wherein the flow of the reactive gas is configured to be directed by the blocked end of the gas flow path from the gas flow path to the gas outlet through the water guide element.