Non-aqueous battery having a lithium-nickel-oxygen cathode

A non-aqueous battery, comprising:

• a positive electrode having a composite oxide including lithium, nickel and oxygen, said composite oxide having a ratio of I.sub.104 to I.sub.003 ranging from 0.35 to 0.68 when measured by an X-ray powder diffraction method using CuK.sub.82 as a target, said I.sub.104 representing a peak intensity of reflection of X-rays at an angle about 2.theta.=44 degrees with respect to a lattice plane (104), and said I.sub.003 representing another peak intensity of reflection of X- rays at an angle about 2.theta.=19 degrees with respect to a lattice plane (003);
• a negative electrode having a material which occludes and releases lithium reversibly;
• and
• a non-aqueous electrolyte.

A non-aqueous battery, comprising:

• a positive electrode having a lithium-nickel composite oxide, said lithium-nickel composite oxide having a ratio of I.sub.104 to I.sub.003 ranging from 0.35 to 0.68 when measured by an X-ray powder diffraction method using CuK.sub.82 as a target, said I.sub.104 representing a peak intensity of reflection of X-rays at an angle about 2.theta.=44 degrees with respect to a lattice plane (104), and said I.sub.003 representing another peak intensity of reflection of X- rays at an angle about 2.theta.=19 degrees with respect to a lattice plane (003);
• a negative electrode having a material which occludes and releases lithium reversibly;
• and
• a non-aqueous electrolyte.