Compound, method for preparation of the same, and lithium secondary battery comprising the same

摘要

Disclosed are a novel compound, a method for preparing the same, and a lithium secondary battery comprising the same. More specifically, disclosed are a compound in which five MO6 octahedrons are bonded to one another around one MO6 octahedron such that the MO6 octahedrons share a vertex, to form hollows and Li cations substituted instead of Na cations using an ion substitution method are present in the hollows, and a crystal structure thereof is not varied even upon intercalation and deintercalation of Li cations, a method for preparing the same, and a lithium secondary battery comprising the same as a cathode active material.

主权项

1. At least one compound selected from compounds represented by the following Formula 1:
LixNa1-xRu2-yMeyO4  (1) wherein 0