A mixed electrode for a nonaqueous electrolyte battery, comprising: a first active material; a second active material that reacts with water more easily than the first active material; an organic binder that binds the first active material and the second active material; and 0.001 to 10 parts by mass of an organic moisture capture agent relative to 100 parts by mass of the organic binder, wherein: the organic moisture capture agent is an organic acid or a salt thereof with a molecular weight of 46 to 500 and dispersed in the organic binder; and the first active material has a smaller specific surface area than the second active material, and wherein: the first active material is any one of a lithium-manganese composite oxide, a composite oxide with a Ni/Li molar ratio of less than 0.5 among lithium-nickel-cobalt-manganese composite oxide, an olivine lithium composite oxide, or lithium cobaltate; and the second active material is any one of a lithium-nickel composite oxide or a composite oxide with a Ni/Li molar ratio of 0.5 or more among a lithium-nickel-cobalt-manganese composite oxide. a first active material; a second active material that reacts with water more easily than the first active material; an organic binder that binds the first active material and the second active material; and 0.001 to 10 parts by mass of an organic moisture capture agent relative to 100 parts by mass of the organic binder, wherein: the organic moisture capture agent is an organic acid or a salt thereof with a molecular weight of 46 to 500 and dispersed in the organic binder; and the first active material has a smaller specific surface area than the second active material, and wherein: the first active material is any one of a lithium-manganese composite oxide, a composite oxide with a Ni/Li molar ratio of less than 0.5 among lithium-nickel-cobalt-manganese composite oxide, an olivine lithium composite oxide, or lithium cobaltate; and the second active material is any one of a lithium-nickel composite oxide or a composite oxide with a Ni/Li molar ratio of 0.5 or more among a lithium-nickel-cobalt-manganese composite oxide. the organic moisture capture agent is an organic acid or a salt thereof with a molecular weight of 46 to 500 and dispersed in the organic binder; and the first active material has a smaller specific surface area than the second active material, and wherein: the first active material is any one of a lithium-manganese composite oxide, a composite oxide with a Ni/Li molar ratio of less than 0.5 among lithium-nickel-cobalt-manganese composite oxide, an olivine lithium composite oxide, or lithium cobaltate; and the second active material is any one of a lithium-nickel composite oxide or a composite oxide with a Ni/Li molar ratio of 0.5 or more among a lithium-nickel-cobalt-manganese composite oxide. the first active material is any one of a lithium-manganese composite oxide, a composite oxide with a Ni/Li molar ratio of less than 0.5 among lithium-nickel-cobalt-manganese composite oxide, an olivine lithium composite oxide, or lithium cobaltate; and the second active material is any one of a lithium-nickel composite oxide or a composite oxide with a Ni/Li molar ratio of 0.5 or more among a lithium-nickel-cobalt-manganese composite oxide.