Trustees of the Colorado School of Mines

Coorstek, Inc.

Jianhua Tong

Ryan Patrick O'Hayre

Meng Shang

Chuancheng Duan

W Grover Coors

Sophie Menzer

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&#xb0; 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/cmat about 500&#xb0; C.) and stability (greater than about 50 days) at intermediate temperatures (less than or equal to about 600&#xb0; C.). The present invention also relates to a two step method for forming a PCFC, and the resulting PCFC.

Cost-effective solid state reactive sintering method for protonic ceramic fuel cells

The present invention relates to a solid oxide (or protonic ceramic) fuel cell, a cathode for a solid oxide (or protonic ceramic) fuel cell, and a method of making the same. More specifically, the cathode for a solid oxide (or protonic ceramic) fuel cell utilizes a phase-pure perovskite structure of the compound BaCoFeZrYO, where x is between about 0 and about 0.2. The cathode material may then be utilized in a SOFT or a PCFC as either a thin film porous cathode or as nanoparticles infiltrated into a cathode bone having a different structure.

Cathode material for low temperature solid oxide fuel cells

The present invention relates to a protonic ceramic fuel cell, a cathode for a protonic ceramic fuel cell, and a method of making the same. More specifically, the cathode for a protonic ceramic fuel cell utilizes a phase-pure perovskite structure of the compound BaCoFeZrYO, where x is between about 0 and about 0.2. The cathode material may then be utilized in a PCFC as either a thin film porous cathode or as nanoparticles infiltrated into a cathode bone having a different structure.

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Golden, CO, United States of America

Jianhua Tong