POSITIVE ELECTRODE MATERIAL FOR LITHIUM BATTERY, POSITIVE MATERIAL PREPARED FROM THE MATERIAL, AND LITHIUM BATTERY INCLUDING THE POSITIVE ELECTRODE

摘要

PURPOSE: A positive electrode material for a lithium battery is provided to prevent the corrosion of an aluminum substrate, to offer high electric conduction property, and to have plate resistance reduction property, high rate property, and life time property. CONSTITUTION: A positive electrode material for a lithium battery contains a positive electrode active material, a water-based binder, and tungsten trioxide (WO3). The average particle diameter of the tungsten trioxide is 10 nm-5 um. The content of the tungsten trioxide is 0.001-50 parts by weight for 100 parts by weight of positive electrode active material. The positive electrode active material contains at least one compound selected from a group consisting of a lithium cobalt oxide, a lithium nickel cobalt manganese oxide, and a lithium nickel cobalt aluminum oxide. 0.1-10 parts by weight of water-based binder is mixed with 100 parts by weight of positive electrode active material. The positive electrode material additionally contains a conductive agent.