FUEL BATTERY SINGLE CELL AND FUEL BATTERY CELL STACK

• Main Authors: DOI YASUTOSHI, SUGIHARA SHINICHI, HITOMI TAKUMA
• Format: Patent
• Language: English; Japanese
• Published: 07.01.2021
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

To provide a fuel battery single cell that easily suppresses the peeling of a solid electrolyte layer and a cathode layer, and a fuel battery cell stack using the same.SOLUTION: A fuel battery single cell 1 includes a cell portion 2 including an anode layer 21, a solid electrolyte layer 22, and a cathode layer 23, and a support layer 3 that is arranged in contact with the anode layer 21 and supports the cell portion 2. The support layer 3 includes an electron conductive material 31, a solid electrolyte material 32, and a pore 33. The support layer 3 satisfies the relationship of dm≤Lse when the average diameter of the electron conductive material is dm, and the average spacing of the solid electrolyte materials is Lse in a cross-sectional view along the thickness direction of the support layer 3.SELECTED DRAWING: Figure 2 【課題】固体電解質層とカソード層との剥離を抑制しやすい燃料電池単セル、これを用いた燃料電池セルスタックを提供する。【解決手段】燃料電池単セル１は、アノード層２１と固体電解質層２２とカソード層２３とを備えるセル部２と、アノード層２１に接して配置されており、セル部２を支持する支持体層３と、を有している。支持体層３は、電子導電性材料３１と固体電解質材料３２と気孔３３とを含んでいる。支持体層３は、支持体層３の厚み方向に沿う断面視において、電子導電性材料の平均径をｄｍ、固体電解質材料の平均間隔をＬｓｅとしたとき、ｄｍ≦Ｌｓｅの関係を満たす。【選択図】図２