| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a solid oxide fuel cell membrane-electrode assembly (battery cell) having a completely dense/airtight electrolyte layer. <P>SOLUTION: A thin membrane electrolyte layer is formed by a magnetron sputtering method on an anode electrode support substrate wherein a designated thickness is formed by laminating a green tape formed by a tape casting method, the thin membrane electrolyte layer becomes a half cell by sintering, and a cathode electrode layer is formed by a silk screen printing method on this membrane electrolyte layer and it is sintered in order to form a battery cell. Here, a gas permeable rate of the electrolyte layer is 1×10<SP>-6</SP>L/cm<SP>2</SP>/sec or below, an open circuit voltage of the whole battery is 1.0V or more, and electric power density at a power generation test is 500mW/cm<SP>2</SP>or more. <P>COPYRIGHT: (C)2010,JPO&INPIT |
