POROUS CATHOD ACTIVE MATERIAL FOR LITHIUM RECHARGEABLE BATTERY AND PREPARATION METHOD THEREOF

摘要

The present invention relates to a positive electrode active material for a lithium battery having a porous structure and a producing method. The positive electrode active material for a lithium battery according to the present invention is porous structure particles having pores distributed throughout an interior region of second particles formed by agglomerates of first particles. A specific surface area is large because a distribution form of the pores is a radial, thereby electrolyte introduction inside pores is easy, moving resistance of lithium ions is reduced, and thus a secondary battery having high output properties can be produced.