ELECTRODE CATALYST BINDER OF SOLID POLYMER FUEL CELL

• Main Authors: TAKAHASHI ARATA, ITABASHI SAORI, SUZUKI KATSUTOSHI, KOMORIYA HARUHIKO, TANAKA TORU
• Format: Patent
• Language: English; Japanese
• Published: 02.06.2016
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

PROBLEM TO BE SOLVED: To provide an electrode catalyst binder which achieves a high power generation efficiency when used for a solid polymer fuel cell, especially used for a cathode-side electrode of a solid polymer fuel cell.SOLUTION: An electrode catalyst binder for a solid polymer fuel cell comprises: a polymer compound having a repeating unit expressed by the following formula (1): A-Y-CH(SORf)(1) (where A is a group representing a main chain structure; Y is a group representing a divalent organic group; and Rf's independently represent a perfluoroalkyl group with 1-4C).SELECTED DRAWING: Figure 1 【課題】固体高分子形燃料電池に用いた場合、高い発電効率を与える電極触媒バインダーを得、特に固体高分子形燃料電池のカソード側電極に用いた場合、高い発電効率を与える電極触媒バインダーを得る。【解決手段】式（１）で表される繰り返し単位を有する高分子化合物を含む、固体高分子形燃料電池用電極触媒バインダー。Ａ−Ｙ−ＣＨ（ＳＯ2Ｒｆ）2（１）（Ａは主鎖構造を表す基であり、Ｙは二価の有機基を表す基である。Ｒｆはそれぞれ独立に炭素数１〜４のパーフルオロアルキル基である。）【選択図】図１