Patent ID: 6929883
Filing Date: 2005-08-16
Classification: C01G,C01P,H01M,Y02E

Abstract:
1. A lithium-transition metal composite oxide which comprises particles of a lithium composite oxide represented by the formula Li x M 1−y N y O 2 , wherein 0.2≦x≦1.2, 0≦y≦0.7, M is a transition metal element, and N is a transition metal element other than M or an alkaline earth metal element, wherein in the distribution curve of the cumulative volume particle size of said lithium composite oxide, the inclination of the curve at a cumulative volume fraction of 20% is at most 9%/μm, the inclination of the curve at a cumulative volume fraction of 80% is at least 3%/μm, and the average particle size is from 3 to 20 μm.