NOVELTY - Electrode (A) for a fuel cell, comprises: a catalyst layer comprising a catalyst; and a first benzoxazine monomer compound (I), a second benzoxazine monomer compound (II) and/or their polymers.    USE - (A) is useful for a fuel cell (claimed).    ADVANTAGE - (A) shows: better oxygen permeability when air is used in a cathode; better wettability in phosphoric acid; and good resistance to heat and phosphoric acid.    DETAILED DESCRIPTION - Electrode (A) for a fuel cell, comprises: a catalyst layer comprising a catalyst; and a first benzoxazine monomer compound of formula (I), a second benzoxazine monomer compound of formula (II) and/or their polymers.    R1-R4 = 1-20C alkyl, 2-20C alkenyl, 2-20C alkynyl, 6-20C aryl group, 2-20C heteroaryl group, 4-20C cycloalkyl group, 2-20C heterocyclic group (all optionally substituted), H, halo, OH or CN;    R5 = 1-20C alkyl, 2-20C alkenyl, 2-20C alkynyl, 6-20C aryl, 7-20C arylalkyl, 2-20C heteroaryl, 2-20C heteroarylalkyl, 4-20C carbocyclic group, 4-20C carbocyclic alkyl, 2-20C heterocyclic group or 2-20C heterocyclic alkyl (all optionally substituted), preferably benzene moiety, 1-(3-propyl)-1H-imidazole moiety, 1H-benzoimidazole-2-yl moiety, 3-trifluoromethyl-benzene-1-yl moiety, 4-fluoro-benzene-1-yl moiety, pyridine-2-yl moiety, pyridine-3-yl moiety, pyridine-4-yl moiety, pyrimidine-2-yl moiety, pyrimidine-2-yl moiety, 2,4-difluoro-benzene-1-yl moiety, 1,2-difluoro-benzene-4-yl moiety, 1,3,5-trifluoro-benzene-2-yl moiety or 3,5-difluoro-benzene-1-yl moiety; and    R6 = 1-20C alkylene, 2-20C alkenylene, 2-20C alkynylene, 6-20C arylene, 2-20C heteroarylene, -C(=O)- or -SO2 (all optionally substituted).    Provided that: at least one of R1-R5 is F or F-containing functional group; and at least one of R5 and R6 is F or F-containing functional group. INDEPENDENT CLAIMS are included for:    (1) a method of manufacturing an electrode for a fuel cell, comprising: dispersing a catalyst in a solvent to obtain a dispersion solution; stirring a mixture comprising a solvent, and (I) and/or (II) below into the dispersion solution, to obtain a coating solution; and coating the coating solution on a surface of a carbon support; and    (2) a fuel cell comprising (A).    DESCRIPTION OF DRAWING(S) - The figure shows the fuel cell including an electrode.    Fuel cell (10)    Electrode. (12)