CATHODE FOR SECONDARY BATTERY AND SECONDARY BATTERY

A cathode for a secondary battery and a secondary battery comprising the cathode are provided. The cathode a cathode current collector, and a cathode active material layer on a surface of the cathode current collector which comprises a cathode active material. The cathode active material layer comprises a first plurality of pores having a diameter of 0.08 µm or less, and a second plurality of pores having a diameter of greater than 0.08 µm and 1 µm or less. A ratio of a second porosity to a first porosity is in a range from 1.75 to 3.6.