with efficient catalyst are needed to receive valuable electrical power in order to achieve these requirements the anode 11 and optionally the cathode 12 is made of electrospun fibrous mat with high surface to volume ratio coated with silver fig6 illustrates anode 39 s structure according to the present invention a fibrous mat 11 b u2014 that is made of electrospun fibers coated with silver u2014 is framed by a conductive frame 11 a creating the anode 11 or a cathode with the same structure the anode 11 has a conductive contact 11 c to connect the fuel cell to an electrical consumer fig7 illustrates one sample of many ways of designing fuel cell in the illustrated design the fuel cell is assembled as a cylinder shape the illustrated design made of three cylinders the inner cylinder is the cathode 12 and it is hollow enabling contact with air 16 the cathode 12 is surrounding by the electrolyte 13 that is delimitated by the middle cylinder 11 which is the anode the glucose fuel 14 is located between the anode 11 and the housing 15 the outer cylinder as used herein in the specification and in the claims section that follows the term u201c mat u201d and the like refers to a non woven micrometric.