Patent ID: 8206867
Filing Date: 2012-06-26
Classification: H01M,Y02E

Abstract:
1. A fuel cell of a flat tube shape, a cuboidal shape, or a cylindrical shape comprising: an electrolyte; an outer electrode provided on an outer surface of the electrolyte to serve as one of an anode and a cathode; an inner electrode provided on an inner surface of the electrolyte to serve as another of the anode and the cathode; a current-collecting electrode made of conductive and porous material provided around substantially all of an outer circumference of the outer electrode to serve as an auxiliary current path for the outer electrode thereby to substantially increase a cross-sectional area of a current path in a circumferential direction of the outer electrode, wherein the current collecting electrode is provided with a fluid feeding channel for feeding a fluid as a fuel or an oxidizing agent at a uniform concentration to the entire region of the outer electrode by shunting flow of the fluid into a flow of the fluid directed to the outer electrode and a flow of the fluid directed in an axial direction of the cell.