Abstract: A battery capable of obtaining a high energy density and obtaining superior cycle characteristics is provided. The thickness of a cathode active material layer is from 100 ?m to 130 ?m. The thickness of an anode active material layer is from 85 ?m to 120 ?m, and the volume density of the anode active material layer is from 1.7 g/cm3 to 1.85 g/cm3. An electrolytic solution contains 4-fluoro-1,3-dioxolane-2-one. Thereby, even when the thicknesses of the cathode active material layer and the anode active material layer are increased, the diffusion and acceptance of lithium in an anode are improved, and superior cycle characteristics can be obtained.

Abstract: An anode and a battery capable of improving conductivity in spite of reducing the ratio of a binder are provided. A cathode and an anode face each other with a separator and an electrolyte in between. The anode includes an anode current collector and an anode active material layer arranged on the anode current collector. The anode active material layer includes an anode active material, a binder and a member including at least one kind selected from the group consisting of nickel, iron and a nickel compound or an iron compound. The content of the binder in the anode active material layer is within a range from 0.5 wt % to 5.0 wt %, both inclusive.

Abstract: A battery capable of obtaining a high energy density and obtaining superior cycle characteristics is provided. The thickness of a cathode active material layer is from 100 ?m to 130 ?m. The thickness of an anode active material layer is from 85 ?m to 120 ?m, and the volume density of the anode active material layer is from 1.7 g/cm3 to 1.85 g/cm3. An electrolytic solution contains 4-fluoro-1,3-dioxolane-2-one. Thereby, even when the thicknesses of the cathode active material layer and the anode active material layer are increased, the diffusion and acceptance of lithium in an anode are improved, and superior cycle characteristics can be obtained.