TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Components: Battery comprises pole piece and non-aqueous electrolyte, the pole piece and non-aqueous electrolyte are sealed in the battery casing, the pole piece comprises anode, cathode and diaphragm between the anode and cathode.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: Positive active substance is LixFeyM1-yPO4 or Li1+xNi1-y-zMnyCozNO2.x= not greater than 0.2 and not less than -0.1;y= not greater than 1 and not less than 0;z= not greater than 1 and not less than 0;y+z= not greater than 1.0 and not less than 0; andM, N=B, Al, Mg, Ga, or 3d transitional metal element.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: Functional group is carboxyl group or carbonyl. Monomer having functional group is unsaturated mono-carboxylic acid, unsaturated dicarboxylic acid, mono-alkyl ester of unsaturated dicarboxylic acid, unsaturated aldehyde, unsaturated ketone, or mono-carboxylic acid ester. Fluoromonomer is vinylidene fluoride, fluoroethylene, trifluoroethene, tetrafluoroethylene, pentafluoroethylene, hexafluoroethylene, pentafluoropropylene, or hexafluoropropylene. Binding agent also comprises the fluoropolymer not having functional group. Preferred Composition: Weight ratio of monomer having functional group and fluoromonomer is 1:10 to 1000. Number-average molecular weight of the fluoropolymer having functional group is 1x 104 to 1x 107. In the positive material, taking positive active substance of 100 weight part as standard, content of the binding agent is 0.1-6 weight part.    TECHNOLOGY FOCUS - POLYMERS - Preferred Composition: Weight ratio of the first polymer and the second polymer is 1:15 to 15:1 in the binding agent. Number-average molecular weight of the second polymer is 1x 103 to 1x 106. Weight ratio of the fluoropolymer not having functional group and the first polymer is 1:15 to 15:1. Number-average molecular weight of the fluoropolymer not having functional group is 1x 105 to 1x 107. Preferred Components: Second polymer is polyacrylonitrile, polymethacrylonitrile, poly acrylic acid ester, or poly methacrylic acid ester. Fluoropolymer having functional group is the polymer of monomer having functional group and fluoromonomer. Fluoropolymer not having functional group is polyvinylidene fluoride, poly tetrafluoroethylene, poly hexafluoropropylene, or vinylidene fluoride-hexafluoropropylene copolymer.