| abstract |
A positive electrode for a lithium secondary battery with high capacity and a lithium secondary battery are provided. The chemical formula A x MB y O z (A is an alkali metal or alkaline earth metal, M contains at least two transition metal elements, and B is covalently bonded to oxygen O. A typical element that forms an anion, and 0 ≦ x ≦ 2, 1 ≦ y ≦ 2, 3 ≦ z ≦ 7)), and part or all of the surface is made of a carbon material. A coated positive electrode active material for a lithium secondary battery, wherein the total pore volume of pores of 10 to 100 nm in pore distribution by gas adsorption method is 0.008 cc / g or more and 0.040 cc / g or less. A positive electrode active material having a specific surface area of 15 m 2 / g or more and 45 m 2 / g or less. [Selection] Figure 2 |