FUEL CELL SEPARATOR MEMBER AND FUEL CELL STACK

• Main Authors: OKUBO TAKURO, OMORI MASARU
• Format: Patent
• Language: English; Japanese
• Published: 18.03.2021
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

To provide a fuel cell separator member and a fuel cell stack, capable of improving the rigidity of a part that supports a load receiving part of a metal separator and also capable of reducing variations in surface pressure acting on a metal bead part.SOLUTION: In a fuel cell separator member 11 of a fuel cell stack 10, a first metal bead part 64 and first ribs 116a, 116b are integrally molded with a first metal separator 36 to be projected on a surface 36a of the first metal separator 36, the first ribs 116a, 116b each having a first rib body 118 and two first escape parts 120. The projection height of each of the two first escape parts 120 is lower than the projection height of the first rib body 118.SELECTED DRAWING: Figure 2 【課題】金属セパレータのうち荷重受け部を支持する部位の剛性を向上させることができるとともに金属ビード部に作用する面圧のばらつきを低減することができる燃料電池用セパレータ部材及び燃料電池スタックを提供する。【解決手段】燃料電池スタック１０の燃料電池用セパレータ部材１１において、第１金属セパレータ３６の面３６ａには、第１金属ビード部６４と第１リブ１１６ａ、１１６ｂとが、第１金属セパレータ３６に一体的に突出成形され、第１リブ１１６ａ、１１６ｂは、第１リブ本体１１８と、２つの第１逃げ部１２０とを有する。２つの第１逃げ部１２０のそれぞれの突出高さは、第１リブ本体１１８の突出高さよりも低い。【選択図】図２