Patent ID: 8404399
Filing Date: 2013-03-26
Classification: H01M,Y02B,Y02E

Abstract:
1. A fuel cell, comprising: a membrane electrode assembly having a fuel electrode, an air electrode, and an electrolyte membrane sandwiched by the fuel electrode and the air electrode; a fuel distributing mechanism disposed on a fuel electrode side of the membrane electrode assembly to supply a fuel to a plurality of places of the fuel electrode; and a fuel storage unit storing a liquid fuel and connected to the fuel distributing mechanism via a flow path, wherein the fuel distributing mechanism includes a fuel distributing plate having a fuel injection port into which the liquid fuel flows via the flow path, and a plurality of fuel discharge ports connected to the fuel injection port via a thin tube provided therein as a fuel passage, wherein the thin tube has branching points and sequentially branches off at the branching points from the fuel injection port toward the plural fuel discharge ports, and wherein each of the branching points satisfies A≧B, where A is a sectional area of the thin tube before the branching at the branching point, and B is a sum of sectional areas of the thin tubes after the branching.