COLLECTOR PLATE FOR FUEL BATTERY, AND FUEL BATTERY STACK

PROBLEM TO BE SOLVED: To suppress the corrosion of a metal plate in a collector plate arranged by laminating different kinds of metal plates.SOLUTION: A collector plate for a fuel battery comprises: a conductive first metal plate having a terminal part; and second and third metal plates, which are h...

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1. Verfasser: SHIZUKU FUMINARI
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To suppress the corrosion of a metal plate in a collector plate arranged by laminating different kinds of metal plates.SOLUTION: A collector plate for a fuel battery comprises: a conductive first metal plate having a terminal part; and second and third metal plates, which are higher than the first metal plate in corrosion resistance, and hold the first metal plate therebetween. The collector plate has: a first through-hole serving to lead a fluid, which is present at least between the first and second metal plates or between the first and third metal plates, to outside the collector plate, and extending through the first to third metal plates; and a first seal material for sealing an end face of the outer periphery of the collector plate. In the collector plate, a wall face of the first through-hole is not sealed.SELECTED DRAWING: Figure 2 【課題】異種の金属板を積層して成る集電板において、金属板の腐食を抑制する。【解決手段】端子部を有する導電性の第1の金属板と、第1の金属板より耐食性の高い金属板であって、第1の金属板を挟持する第2と第3の金属板と、を備える、燃料電池用の集電板であって、集電板は、第1の金属板と第2の金属板と第3の金属板とを貫通し、第1の金属板と第2の金属板との間、および第1の金属板と第3の金属板との間の少なくともいずれか一方に存在する流体を集電板外へ導くための第1の貫通孔と、集電板の外周の端面を封止する第1のシール材と、を備え、第1の貫通孔の孔壁面は、封止されていない、集電板。【選択図】図2