Institute of Nuclear Energy Research, Atomic Energy Council, Executive Yuan

Institute of Nuclear Energy Research

Hong-Yi Kuo

Wei-Xin Kao

Tai-Nan Lin

Chun-Yen Yeh

Yu-Ming Chen

Jen-Yuan Kuo

Ming-Wei Liao

Ruey-Yi Lee

Yung-Neng Cheng

Szu-Han Wu

Yi-Jing Wu

Min-Fang Han

Wei-xin Kao

A method of preparation and application for a glass ceramic sealing thin strip with high sealing performance, differing from using conventional glass ceramic packaging paste applied to the junction of the cell stack assembly and connecting plates. The glass ceramic sealing thin strip of present invention utilizes tape casting to produce a single layer or multi-layer stacking in accordance with the required thickness of the glass-ceramic sealing thin strip, and cutting the glass ceramic sealing thin strips from molds in accordance with the geometry of cell stacks with equal thickness of the glass ceramic sealing thin strip for SOFC cell stack assembly, aiming to overcome the setbacks of the conventional dispensing method with glass ceramic packaging paste that makes the thickness difficult to control, and to effectively improve sealing performance of the cell stack assembly and the power generation efficiency, and achieve commercial application with mass production.

Method of preparation and application for glass ceramic sealing thin strips

A membrane electrode assembly structure of a fuel cell and a method of making the same are disclosed. The materials to be used include NiO, 8YSZ and 3YSZ that mixed into a slurry, formed into anodes by tape casting, sintered to form an anode substrate, and followed by forming a thin film of electrolyte layer on the surface of the anode substrate, forming a cathode layer on the outer surface of the electrolyte layer to obtain the membrane electrode assembly, which utilizes the 3YSZ having a tetragonal crystal phase to improve the toughness and mechanical strength of the material of NiO-8YSZ through calcination, thus the thickness of the anode substrate can be reduced, and the fuel gas diffusion path and resistance can be appropriately reduced to enhance the conductivity of the anode substrate.

Membrane electrode assembly structure of fuel cell and the method of fabricating the same

A composite material type oxygen transport membrane and its preparation method are disclosed. The composite material that is an ionic-electronic mixed conducting material having high ionic conductivity is stirred into slurry and formed into a thin strip-shaped green tape substrate through tape casting to obtain a predetermined half-finished substrate, and then sintered to form the half-finished substrate into a conductive function type oxygen ion conducting substrate, followed by choosing small particle shaped highly catalyzed ionic-electronic mixed conducting material to be evenly adhered to at least one side surface of the conductive function type oxygen ion conducting substrate to form a reductive function type oxygen ion conducting layer. The reductive function type oxygen ion conducting layer and the conductive function type oxygen ion conducting substrate are then bonded to produce a composite material type oxygen transport membrane element.

Composite material type oxygen transport membrane

A fabrication process for production of planar type solid oxide fuel cell with high electrical conductivity and low fuel gas impedance is disclosed. It is a tape casting to produce an anode substrate furnished with a pore array structure on one or plurality of layers of the anode green tape on the utmost outside of the anode. It is to implement the process of solid oxide fuel cell membrane electrode assembly (SOFC-MEA) with precision abrasion to remove nickel depleted layer on the anode surface to complete the production of a unit cell. The fabrication of anode with pore array structure provides a good conduction effect for fuel gas and the solid oxide fuel cell with this treatment has features of high electrical conductivity and low fuel gas impedance to improve the performance of SOFC unit cell.

Fabrication process for production of SOFC-MEA with a pore array anode structure for improving output power density

Growing community of inventors

Taoyuan, Taiwan

Hong-Yi Kuo