LITHIUM TRANSITION METAL OXIDE HAVING LAYER STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a lithium transition metal oxide which exhibits excellent characteristics in a charge/discharge depth range mainly used in a cell loaded on EV and HEV and excellent thermostability especially in SOC=50%.

SOLUTION: The lithium transition metal oxide having a layer structure is represented by general formula Li1+xM1-x-yM'yO2-δ(wherein M is one element selected from Mn, Co and Ni or elements which consist of two or more of these elements; and M' is one element of typical elements to the third period in the periodic table or elements which consists of two or more of those elements), and has a crystal structure belonging to the trigonal system of R-3m space group, an oxygen site occupancy of 0.982COPYRIGHT: (C)2010,JPO&INPIT