FUEL CELL SEPARATOR

• Main Authors: MIYAZAKI DAICHI, AISAKA TAKASHI
• Format: Patent
• Language: English; Japanese
• Published: 18.03.2022
• 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 having a low initial contact resistance and suppressing an increase in contact resistance.SOLUTION: A fuel cell separator according to an embodiment includes a metal substrate, a corrosion-resistant metal intermediate layer formed on the metal substrate, and a carbon layer formed on the corrosion-resistant metal intermediate layer, and the intensity ratio (ID/IG) of the D band peak intensity (ID) and the G band peak intensity (IG) in the Raman spectrum of the carbon layer is 0.70 or more and less than 0.95.SELECTED DRAWING: Figure 1 【課題】本開示の目的は、低い初期接触抵抗を有し且つ接触抵抗の増加が抑制された燃料電池セパレータを提供することである。【解決手段】本実施形態は、金属基材と、金属基材の上に形成された耐食性金属中間層と、耐食性金属中間層の上に形成された炭素層と、を有し、炭素層のラマンスペクトルにおけるＤバンドピーク強度（ＩＤ）とＧバンドピーク強度（ＩＧ）の強度比（ＩＤ／ＩＧ）が０．７０以上０．９５未満である、燃料電池セパレータである。【選択図】図１