NOVELTY - An aqueous paste is obtained by mixing an electrode active material, a conductive support agent, a binder, a fluorine-containing compound, and an aqueous medium. The content of fluorine-containing compound with respect to the entire amount of aqueous paste is 0.0005-5 mass%.    USE - Manufacture of aqueous paste used for forming electrodes of electrical storage elements (claimed). Uses include but are not limited to nickel-hydrogen batteries, lithium ion batteries, lithium polymer batteries, lithium primary batteries, and electrical-double-layer capacitors of mobile machines, vehicle-mounted electrical storage-and-discharge system energy sources, and electric power storage systems.    ADVANTAGE - The method enables manufacture of homogeneous aqueous paste having excellent adhesiveness with substrate, solvent resistance, heat resistance, and workability, and which enables safe formation of electrodes with respect to human body and environment. The obtained paste bears smooth phase-boundary-charge movement reaction, ionic conduction, and electronic conduction. The paste provides electrical storage elements having high charge-and-discharge capacity and high energy density, and excellent cycle characteristics, high-load characteristics, low-temperature characteristics, high-temperature characteristics, reliability, output characteristics, and safety.    DETAILED DESCRIPTION - An aqueous paste is obtained by mixing an electrode active material, a conductive support agent, a binder, a fluorine-containing compound, and an aqueous medium. The content of fluorine-containing compound with respect to the entire amount of aqueous paste is 0.0005-5 mass%. The fluorine-containing compound is of formula: R-X.    R=fluorine-containing alkyl or fluorine-containing alkyl having ether oxygen atom, whose carbon-atom number is 3-15 and fluorine-atom number is 7-13, with fluorine-containing alkyl optionally having side chain of 1-3C fluorine-containing alkyl;and    X=carboxylic acid, sulfonic acid, or their alkali-metal salt or ammonium salt.    The total carbon-atom number of R-X is 4-16.