Liquid composition for producing electrode composite material, method for producing electrode, and method for producing electrochemical element

A liquid composition suitable for an electrode composite material, the composition comprising:

• an active material comprising of graphite having a mode diameter of 0.5 um or more:
• a dispersion medium:
• and
• a polymerizable compound,
• wherein a viscosity of the liquid composition at 25° C. is in a range of from 9.5 to 50 mPas,
• the polymerization initiator is at least one selected from the group consisting of α-hydroxyacetophenone, α-aminoacetophenone, 4-aroyl-1,3-dioxolane, benzyl ketal, 2,2-diethoxyacetophenone, p-dimethylaminoacetophene, p-dimethylaminopropiophenone, benzophenone, 2-chlorobenzophenone, 4,4′-dichlorobenzophenone, 4,4′-bis(diethylamino)-benzophenone, Michler's ketone, benzil, benzoin, benzyl dimethyl ketal, tetramethylthiuram monosulfide, thioxanthone, 2-chlorothioxanthone, 2-methylthioxanthone, azobisisobutyronitrile, benzoin peroxide, di-tertbutyl peroxide, (1-hydroxycyclohexyl)-phenylketone, 2-hydroxy-2-methyl-1-phenyl-1-one, 1-(4-isopropylphenyl)-2-hydroxy-2-methylpropane-1-one, methyl benzoylformate, a benzoin alkyl ether, 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)butanone-1, 2,2-dimethoxy-1,2-diphenylethane-1-one, bis(η5-2,4-cyclopentadiene-1-yl)-bis[2,6-difluoro-3-(1H-pyrrole-1-yl)phenyl] titanium, bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide, 2-methyl-1-[4-(methylthio)phenyl]-2-morpholinopropane-1-one, 2-hydroxy-2-methyl-1-phenylpropane-1-one, bis(2,6-dimethoxybenzoyl)-2,4,4-trimethylpentylphosphine oxide, 1-[4-(2-hydroxyethoxy)phenyl]-2-hydroxy-2-methyl-1-propane-1-one, monoacylphosphine oxide, disacylphosphine oxide, titanocene, fluorescein, anthraquinone, thioxanthone, xanthone, lophine dimer, a trihalomethyl compound, a dihalomethyl compound, an active ester compound, an organic boron compound, a bisazide compound, azobisisobutyronitrile, onium salt, diazonium salt, quinone diazide, organic halide, aromatic sulfonate, bisulfone compound, sulfonyl compounds, sulfonate, sulfonium salt, sulfamide, iodonium salt, sulfonyl diazomethane compound, and a mixture of two or more of these photoradical generators or thermal polymerization initiators, or photoacid generators;
• and
• wherein a 10% diameter (D10) of said graphite active material is 0.1 um or more, and 0.8 um or less.