High Loading Positive Electrode, Slurry For Positive Electrode, And Lithium Secondary Battery

Abstract: A positive electrode according to the present invention comprises a positive electrode active material layer having a loading amount of at least 450 mg/25?, wherein the positive electrode active material layer comprises lithium iron phosphate, a fluorine-based binder, a rubber-based binder, and a conductive material, the rubber-based binder comprises a first hydrogenated nitrile butadiene rubber with a weight average molecular mass (Mw) of 10,000 to 100,000 g/mol, and a second hydrogenated nitrile butadiene rubber having a weight average molecular mass (Mw) of at least 150,000 g/mol, and the second hydrogenated nitrile butadiene rubber is included to be 0.2 to 0.8 wt% on the basis of the total weight of the positive electrode active material layer.

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