OXYGEN DIFFUSION COEFFICIENT MEASUREMENT DEVICE

• Main Authors: HAYASHI DAISUKE, YAMAMOTO ATSUMI, IDA ATSUMI, MAKAGO SHOTA, KATO IKUYASU, SANO TOMOKI
• Format: Patent
• Language: English; Japanese
• Published: 23.08.2018
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; TESTING

PROBLEM TO BE SOLVED: To enable measurement of an oxygen diffusion coefficient of a porous body by maintaining a water-containing state of the porous body.SOLUTION: Disclosed is an oxygen diffusion coefficient measurement device for measuring an oxygen diffusion coefficient of a thin film porous body used for a fuel cell in a pressurized state held by a pair of pressure members. At least one of pressure members is provided with a recess on a pressure surface brought into contact with the porous body. In the recess, a member having lower elasticity than that of the porous body and also having higher water- repellency than that of the porous body is provided so as to fill the recess.SELECTED DRAWING: Figure 3 【課題】多孔体の含水状態を維持して多孔体の酸素拡散係数の測定を可能とする。【解決手段】燃料電池に用いられる薄膜状の多孔体の酸素拡散係数を一対の加圧部材で挟持した加圧状態で測定する酸素拡散係数測定装置は、少なくとも一方の加圧部材は、前記多孔体に接する加圧面に凹部が設けられており、前記凹部には、前記多孔体よりも低弾性を有し、かつ、前記多孔体よりも高撥水性を有する部材が、前記凹部を満たすように設けられている。【選択図】図３