Patent ID: 8956780
Filing Date: 2015-02-17
Classification: H01M,Y02E,Y02P

Abstract:
1. A solid oxide fuel cell comprising: one or more sheet bodies, each sheet body being defined by a fired stack of layers comprising a polycrystalline solid electrolyte layer, a fuel electrode layer on an upper surface of the polycrystalline solid electrolyte layer, and an air electrode layer on a lower surface of the polycrystalline solid electrolyte layer; and a plurality of support members supporting the one or more sheet bodies; wherein the sheet bodies and the support members define alternating stacked layers; wherein a fuel gas channel is defined adjacent to each sheet body and between each sheet body and a respective one of the support members formed above the respective sheet bodies, and an oxygen-containing air channel is defined adjacent to each sheet body and between each sheet body and a respective one of the support members formed below the respective sheet bodies; and wherein each particle that constitutes the polycrystalline solid electrolyte layer is formed in a flattened shape extending in a plane direction of the polycrystalline solid electrolyte layer having a thickness of the polycrystalline solid electrolyte layer that is the same as that of a single particle in a thickness direction of the polycrystalline solid electrolyte layer, and the thickness of the polycrystalline solid electrolyte layer is 0.3 μm or more to 5 μm or less.