FUEL BATTERY STACK

• Main Authors: NAGUMO KENJI, JINBA AKIRA, KIMURA YOSHITO
• Format: Patent
• Language: English; Japanese
• Published: 30.03.2017
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

PROBLEM TO BE SOLVED: To provide a fuel battery stack that can suppress degradation of the performance of an end portion power generation cell as much as possible with a simple and economical configuration.SOLUTION: A fuel cell stack 10 includes a stack body 14 in which a plurality of power generation cells 12 are stacked. A first end power generation cell 12 end.(c) disposed at one end in the stack direction of the stack body 14 has a cathode separator 34 at the outermost portion in the stack direction. A second end power generation cell 12 end.(a) disposed at the other end in the stack direction of the stack body 14 has an anode separator 30 at the outermost portion in the stack direction. The flow rate of oxidant gas flowing through the first end power generation cell 12 end.(c) is larger than the flow rate of oxidant gas flowing through the second end power generation cell 12 end.(a).SELECTED DRAWING: Figure 2 【課題】簡単且つ経済的な構成で、端部発電セルの性能低下を可及的に抑制することを可能にする。【解決手段】燃料電池スタック１０は、複数の発電セル１２が積層される積層体１４を備える。積層体１４の積層方向一端に配置される第１端部発電セル１２end.（ｃ）は、積層方向最外部にカソードセパレータ３４を有する。積層体１４の積層方向他端に配置される第２端部発電セル１２end.（ａ）は、積層方向最外部にアノードセパレータ３０を有する。第１端部発電セル１２end.（ｃ）を流通する酸化剤ガスの流量は、第２端部発電セル１２end.（ａ）を流通する前記酸化剤ガスの流量よりも多い。【選択図】図２