Patent ID: 8097363
Filing Date: 2012-01-17
Classification: H01M,Y02E

Abstract:
1. A method of manufacturing positive electrode material, wherein: material powder including Li, Ni, Mn and Co is ground after it is burned at 950 to 1100° C.; plural primary particles are flocculated and a secondary particle is formed; length in which the primary particles are linked on a section of the secondary particle is equivalent to 50 to 70% of the length of the whole periphery on a section of the primary particles; the secondary particle is represented as Li the secondary particle is composed of crystals having layer structure of composite oxide meeting 1≦a≦1.2, 0≦x≦0.65, 0.33≦y<0.5, 0≦z≦0.65 and x+y+z=1.