HYDROPHILIC PROCESSING METHOD AND FUEL BATTERY SYSTEM

To provide a hydrophilic processing method for an anode diffusion layer and a fuel battery system configured to be capable of performing the method, the method being capable of improving hydrophilicity of a surface and the inside of the anode diffusion layer using a simple procedure.SOLUTION: A hydr...

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Hauptverfasser: SAITO TOSHIYUKI, TAKEDA TAKAHIDE, KAWACHI DARUMA, HAYASHI YUJI, NAKAI MOTOO, FURUHASHI TADATAKE, TAKEI SATOYUKI, KUBO ATSUSHI, NAKASONE AYUMI, TSUJIGUCHI TAKUYA, NAKANE ATSUSHI
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creator SAITO TOSHIYUKI
TAKEDA TAKAHIDE
KAWACHI DARUMA
HAYASHI YUJI
NAKAI MOTOO
FURUHASHI TADATAKE
TAKEI SATOYUKI
KUBO ATSUSHI
NAKASONE AYUMI
TSUJIGUCHI TAKUYA
NAKANE ATSUSHI
description To provide a hydrophilic processing method for an anode diffusion layer and a fuel battery system configured to be capable of performing the method, the method being capable of improving hydrophilicity of a surface and the inside of the anode diffusion layer using a simple procedure.SOLUTION: A hydrophilic processing method is applied to an anode diffusion layer 114 of a fuel battery 1 configured to be capable of using formic acid as fuel, the fuel battery including a membrane-electrode assembly 11 comprising an electrolyte membrane 111, an anode 112 and a cathode 113 that are provided on the electrolyte membrane 111, and the anode diffusion layer 114 provided on the anode 112. Bringing formic acid having a concentration equal to or higher than 20 mass% and equal to or lower than 98 mass% into contact with the anode diffusion layer 114 can enhance hydrophilicity of the region of the anode diffusion layer 114 in contact with the formic acid.SELECTED DRAWING: Figure 1 【課題】簡便な方法によりアノード拡散層の表面及び内部の親水性を向上させることができるアノード拡散層の親水化処理方法及びこの方法を実施できるように構成された燃料電池システムを提供する。【解決手段】親水化処理方法は、電解質膜111と、電解質膜111上に設けられたアノード112及びカソード113と、アノード112上に設けられたアノード拡散層114と、を備えた膜電極接合体11を含み、ギ酸を燃料として使用可能に構成された燃料電池1における、アノード拡散層114に適用される。アノード拡散層114に濃度が20質量%以上98質量%以下であるギ酸を接触させることにより、アノード拡散層114におけるギ酸に接触した領域の親水性を高めることができる。【選択図】図1
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subjects BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
title HYDROPHILIC PROCESSING METHOD AND FUEL BATTERY SYSTEM
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