Patent ID: 7655333
Filing Date: 2010-02-02
Classification: H01M,Y02E,Y02P

Abstract:
1. A solid oxide fuel cell comprising: a. a silicon substrate, wherein said substrate comprises a low stress silicon nitride layer deposited on both sides, wherein a portion of said silicon nitride is etched away on at least one side, wherein a residual portion of said silicon nitride layer provides a surface for deposition; b. an electrolyte membrane deposited to said residual silicon nitride layer, wherein the electrolyte membrane comprises one layer of ionic conductor grains, wherein the thickness of the electrolyte membrane is substantially equal to an average thickness of the ionic conductor grains, wherein ions crossing said electrolyte membrane do not cross grain boundaries within the electrolyte; and c. a columnar electrode disposed on said electrolyte membrane, wherein said columnar shape minimizes electrical short circuiting across said fuel cell.