POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, BATTERY USING THE SAME, AND METHOD OF MANUFACTURING POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

摘要

A positive electrode (1) has a positive electrode current collector, and a positive electrode mixture layer formed on at least one surface of the positive electrode current collector. The positive electrode mixture layer contains a positive electrode active material, a water-based binder, and a conductive agent. The positive electrode active material includes a lithium-transition metal composite oxide having an erbium compound adhered to a surface of the lithium-transition metal composite oxide, and the water-based binder includes a latex rubber.

主权项

1. A method of manufacturing a positive electrode for a non-aqueous electrolyte secondary battery, comprising the steps of:
preparing a positive electrode active material by using a lithium-transition metal composite oxide and an aqueous solution having dissolved therein at least one metal salt selected from the group consisting of a rare earth salt, an aluminum salt, a zinc salt, a zirconium salt, and a magnesium salt, and adhering at least one metallic compound selected from the group consisting of a rare earth compound, an aluminum compound, a zinc compound, a zirconium compound, and a magnesium compound onto a surface of the lithium-transition metal composite oxide; preparing a positive electrode mixture slurry using the positive electrode active material, a conductive agent, and a latex rubber; and coating the positive electrode mixture slurry onto at least one surface of a positive electrode current collector, and thereafter drying the positive electrode mixture slurry, to prepare a positive electrode mixture layer.