Cost-Effective Solid State Reactive Sintering Method for Protonic Ceramic Fuel Cells

摘要

The present invention relates to a protonic ceramic fuel cell and a method of making the same. More specifically, the method relates to a cost-effective route which utilizes a single moderate-temperature (less than or equal to about 1400° C.) sintering step to achieve the sandwich structure of a PCFC single cell (dense electrolyte, porous anode, and porous cathode bone). The PCFC layers are stably connected together by the intergrowth of proton conducting ceramic phases. The resulted PCFC single cell exhibits excellent performance (about 450 mW/cm2 at about 500° C.) and stability (greater than about 50 days) at intermediate temperatures (less than or equal to about 600° C.). The present invention also relates to a two step method for forming a PCFC, and the resulting PCFC.

主权项

1. A method for fabricating a protonic ceramic fuel cell, comprising:
sintering in a single step a dense electrolyte, a porous anode and a porous cathode bone with a proton conducting ceramic at a temperature of less than about 1400° C. to form the protonic ceramic fuel cell comprising an electrolyte, an anode and a cathode bone.