Lithium-containing complex oxide, non-aqueous secondary battery using the lithium-containing complex oxide, and method for producing the lithium-containing complex oxide

摘要

Because of the composition represented by General Formula: Li1+x+αNi(1−x−y+δ)/2Mn(1−x−y−δ)/2MyO2 (where 0≦x≦0.05, −0.05≦x+α≦0.05, 0≦y≦0.4; −0.1≦δ≦0.1 (when 0≦y≦0.2) or −0.24≦δ≦0.24 (when 0.2

主权项

1. A method for producing a lithium-containing complex oxide, comprising:
coprecipitating a complex compound containing at least Ni and Mn as constituent elements in an inactive atmosphere; mixing the complex compound and a compound of Li at a predetermined ratio; and sintering the mixture at a sintering temperature of about 700° C. to 1100° C. in an atmosphere containing oxygen, thereby forming a complex oxide with a layered crystal structure, wherein the lithium-containing complex oxide further contains a substituent element M, wherein the substituent element M contains Co, and assuming that a total quantity of Ni, Mn, and the substituent element M is 1-x, and a quantity ratio of the substituent element M is y, x satisfies 0≦x≦0.05, y satisfies 0.1